Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Kentucky (2289)
- University of Nebraska - Lincoln (637)
- Department of Primary Industries and Regional Development, Western Australia (129)
- Utah State University (122)
- University of Arkansas, Fayetteville (102)
-
- International Centre of Insect Physiology and Ecology (94)
- Universitas Padjadjaran (73)
- University of the Philippines Los Baños (36)
- South Dakota State University (29)
- Louisiana State University (24)
- Clemson University (15)
- California Polytechnic State University, San Luis Obispo (12)
- Mississippi State University (9)
- Missouri State University (9)
- Wright State University (9)
- Chapman University (7)
- Tennessee State University (7)
- West Virginia University (7)
- Western Kentucky University (6)
- Illinois State University (5)
- Brigham Young University (4)
- Murray State University (4)
- SIT Graduate Institute/SIT Study Abroad (4)
- University of Connecticut (4)
- University of New Hampshire (4)
- Edith Cowan University (3)
- Extension Journal Inc (3)
- Old Dominion University (3)
- Purdue University (3)
- Stephen F. Austin State University (3)
- Keyword
-
- Nutritive value (123)
- Grazing (101)
- Nitrogen (89)
- Forage (83)
- Digestibility (77)
-
- Sheep (70)
- Pasture (68)
- Alfalfa (67)
- Yield (65)
- Forage quality (61)
- Silage (60)
- Crude protein (57)
- Cattle (56)
- Western Australia (56)
- Intake (53)
- Phosphorus (47)
- Livestock (45)
- Grassland (40)
- Legumes (40)
- Maize (39)
- Quality (39)
- Utah (39)
- Grass (38)
- Chemical composition (37)
- Rice (37)
- Soybean (35)
- Nutrition (33)
- Sustainability (33)
- Corn (32)
- Forages (32)
- Publication Year
- Publication
-
- IGC Proceedings (1977-2023) (2270)
- Department of Agronomy and Horticulture: Faculty Publications (266)
- United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications (226)
- All Peer-Reviewed Publications (94)
- UAES Bulletins (87)
-
- Jurnal Kultivasi (73)
- Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research (56)
- Graduate Theses and Dissertations (55)
- INTSORMIL Impacts and Bulletins (37)
- Arkansas Agricultural Experiment Station Research Series (36)
- The Philippine Agricultural Scientist (36)
- Bulletins 4000 - (27)
- UAES Circulars (24)
- Electronic Theses and Dissertations (17)
- Theses and Dissertations (16)
- Grain and Other Field Crops Research Articles (15)
- LSU Master's Theses (14)
- Theses and Dissertations--Plant and Soil Sciences (13)
- Grain and other field crops published reports (10)
- LSU Doctoral Dissertations (10)
- All Theses (9)
- Graduate Theses/Dissertations (9)
- Journal of Bioresource Management (9)
- Natural resources published reports (9)
- Animal production and livestock factsheets (8)
- Grains and other field crops factsheets (8)
- Horticulture research reports (8)
- Master's Theses (8)
- Agricultural and Environmental Sciences Faculty Research (7)
- Agronomy, Horticulture and Plant Science Faculty Publications (7)
- Publication Type
- File Type
Articles 481 - 510 of 3746
Full-Text Articles in Entire DC Network
Evaluation Of The Chemical Composition Of Some Locally Available Acacia Seeds As Animal Feed In Botswana, A A. Aganga, C M. Tsopito
Evaluation Of The Chemical Composition Of Some Locally Available Acacia Seeds As Animal Feed In Botswana, A A. Aganga, C M. Tsopito
IGC Proceedings (1977-2023)
Two separate studies were conducted using indigenous browse seeds. In the first study, seeds from nine locally available Acacia trees were analysed for proximate composition, fatty acid composition and in vitro dry matter digestibility. Nutrient composition of the seeds varied in crude protein from 12.52% for Acacia robusta to 21.82% for Acacia erubescens. Ash content ranged from 3.20% to 4.75%. The in vitro dry matter digestibility ranged from 46.00% for Acacia rehmanniana to 62.00% for Acacia erubescens. Fatty acids present in the seeds included palmitic, linoleic and oleic acids. The second study was to evaluate the influence of processing on …
Salt Tolerance In Herbage And Its Application To Greening The Desert, Y Maeda, T Otani, K Ogiwara, S Murai, H Takenaga
Salt Tolerance In Herbage And Its Application To Greening The Desert, Y Maeda, T Otani, K Ogiwara, S Murai, H Takenaga
IGC Proceedings (1977-2023)
Canadian peat moss was used as water holding material and the efficacy of mixing the peat with the sand on water holding capacity of the sand, and the adaptability of alfalfa (AL), burmudagrass (BG), bahiagrass(BH), weeping lovegrass (WL) and Japanese lawngrass(JL) to dry and saline conditions were investigated. Without mixing peat, pF value of the sand did not change for 6 days after watering, but rose markedly up to 2.9 after 18 days. With mixing peat at the rate of 2% by the sand weight, the value did not change for 20 days, and rose gradually up to 2.5 on …
Forage Yields Of Simple Mixtures Of Selected Genotypes Of Grasses And Adapted Herbaceous Legumes In Southwest Nigeria, I Ezenwa, M E. Aken'ova
Forage Yields Of Simple Mixtures Of Selected Genotypes Of Grasses And Adapted Herbaceous Legumes In Southwest Nigeria, I Ezenwa, M E. Aken'ova
IGC Proceedings (1977-2023)
Three tropical grasses viz. Guinea grass (Panicum maximum Jacq), elephant grass (Pennisetum purpureum Schum) and star grass (Cynodon nlemfuensis Vanderyst) and three herbaceous legumes viz. Verano stylo (Stylosanthes hamata (L) Taub), centro (Centrosema pubescens Benth) and tropical kudzu (Pueraria phaseoloides (Roxb) Benth) were evaluated for their dry matter (DM) yield potential in mixtures and sole stands. Annual DM yields of Verano stylo in mixtures with star grass, Guinea grass and elephant grass as well as tropical kudzu mixtures with Guinea grass and elephant grass varied between 13.2 and 14.2 t/ha. These yields were similar to …
The Productivity And Botanical Composition Of Permanent, Temporary And Slot Seeded Grassland, J Fiala, J Gaisler, V Pavlu
The Productivity And Botanical Composition Of Permanent, Temporary And Slot Seeded Grassland, J Fiala, J Gaisler, V Pavlu
IGC Proceedings (1977-2023)
The development of botanical composition and primary production was followed from 1993 to 1995 at the southern side of the Jizera Mountains on three-cutting permanent, temporary and slot seeded grassland. Each grassland type was divided into 4 variants with various doses of mineral fertilization. The same clover-grass mixture composed of 5 components were used for the renovation by ploughing and slot seeding. During three years of the observation a very fast drop of the clover portion for the benefit of grass species and herbs was noted especially by the renewed grassland. Also sown grass species in the renewed grassland declined …
Galega Orientalus Lam. Var "Gale" New Legume, Protein And Perennial Fodder Crop In Fr Yugoslavia, B Radenovic
Galega Orientalus Lam. Var "Gale" New Legume, Protein And Perennial Fodder Crop In Fr Yugoslavia, B Radenovic
IGC Proceedings (1977-2023)
In our four-year research, (Galega orientalis Lam.) Var. “GALE” grown in the region of North Backa, FR Yugoslavia, gave a considerably higher yield in green mass, hay, crude protein content, crude fat content, ash and dry matter contents, compared to control plant (average of the 1991/96 trials). During hay stacking, leaves did not fall off, which is a very favorable property.
Cutting Date Effects Of Yield And Quality Of Unimproved Kudzu (Pueraria Lobata (Willd.) Ohwi.), T H. Terrill, S Gelaye, S Mahotiere, E A. Amoah, S Miller, W R. Windham
Cutting Date Effects Of Yield And Quality Of Unimproved Kudzu (Pueraria Lobata (Willd.) Ohwi.), T H. Terrill, S Gelaye, S Mahotiere, E A. Amoah, S Miller, W R. Windham
IGC Proceedings (1977-2023)
Kudzu (Pueraria lobata (Willd.) Ohwi.), a vigorous, perennial warmseason legume, is considered a weed in the southern United States. It is tolerant of drought and low soil fertility and has potential as a low-input forage for livestock production. A field experiment tested effects of cutting date on yield and nutritive value of an unimproved stand of kudzu (10-15 yr old) in central Georgia. Yield measurements were made in June, July, September, and November, 1994, with forage samples taken to determine quality parameters. Soil fertility was unaffected by cutting treatment. Whole plant and leaf dry matter (DM) production and crude …
Long Term Weed Management Effects In Alfalfa, Randy Dovel, Mylen Bohle
Long Term Weed Management Effects In Alfalfa, Randy Dovel, Mylen Bohle
IGC Proceedings (1977-2023)
Five herbicide treatment regimes were applied to spring and fall seeded alfalfa from 1991 to 1995 at two locations, Klamath Falls and Powell Butte, Oregon. Treatments were evaluated by measuring alfalfa crown and weed stand counts, yield, weed content and forage quality of all cuttings each year. Weed control treatment did not affect hay yield at Klamath Falls. Severe weed competition in 1991 caused lower yields in untreated plots in 1992 at Powell Butte. Weed growth was most pronounced in the first cutting at both sites. The presence of weeds did not adversely affect forage quality in any cutting except …
Effect Of Frequency And Intensity Of Defoliation On Oat- Vetch Mixture, M J. Arzadun, M H. Vallejos, M M. Piersanti
Effect Of Frequency And Intensity Of Defoliation On Oat- Vetch Mixture, M J. Arzadun, M H. Vallejos, M M. Piersanti
IGC Proceedings (1977-2023)
An experiment was conducted to evaluate the effect of different cutting regimes on productivity and complementarity between oat and vetch in a mixture. The treatments were allocated in a factorial design on a split-split-plot disposition: they were 3 cutting frequencies (each 35, 70 and 105 days), 3 cutting heights (2, 8 and 14 cm above ground) and 3 crops (oat, vetch and the 1:1 mixture). Forage production (dry matter per hectare) and complementarity between species Relative Yield Total (RYT) were evaluated. The highest forage production (p- 0.05) was obtained with a cutting height of 2 cm and a frequency of …
Grazing Sheep On Revegetated Saline Pastures: Effects Of Season And Grazing On Morphology And Nutritive Value Of Saltbush, Atiq Ur Rehman, J B. Mackintosh, B E. Warren, D R. Lindsay
Grazing Sheep On Revegetated Saline Pastures: Effects Of Season And Grazing On Morphology And Nutritive Value Of Saltbush, Atiq Ur Rehman, J B. Mackintosh, B E. Warren, D R. Lindsay
IGC Proceedings (1977-2023)
This experiment was designed to determine the thickness of saltbush (Atriplex amnicola) stem grazed by sheep, grazing pressure on saltbush in the presence of understorey and the effect of season on the nutritive value of saltbush. Four 0.9 ha plots of Atriplex amnicola were grazed by a group of 10 Merino wethers each. The results indicated that the maximum diameter of stem selected by sheep under extreme conditions was only 1.5 mm. The number of stems chewed per 0.1m2 quadrat were 0.8, 9.6, 20.1 and 18.0 (P<0.05) after 2, 4, 6 and 8 wk. From January to June the nitrogen content (14 to 30 gkg-1) and DMD (0.65 to 0.72) of saltbush leaves remained high. These results suggest that in the presence of understorey the grazing pressure on saltbush was least and increases when the feed from understorey was exhausted. The nutritional value of saltbush did not deteriorate severely during the summer and autumn period.
Productivity Of Grasses In A Pasture In The Cerrado Area Of The "Triangulo Mineiro", I F. Andrade, M A. Oliveira
Productivity Of Grasses In A Pasture In The Cerrado Area Of The "Triangulo Mineiro", I F. Andrade, M A. Oliveira
IGC Proceedings (1977-2023)
A grazing trial using guinea and coloniao (Panicum maximum), setaria (Setaria sphacelata), andropogon (Andropogon gayanus), and signalgrass (Brachiaria decumbens) was conducted during three grazing cycles: 1st cycle - Apr. 5, 1984 to Jul. 23, 1984; 2nd - Dec. 4, 1984 to Oct. 30, 1985 and 3rd - Jan. 16, 1986 to Jan. 15, 1987. It was also used with four stocking rates- T1= 0.8, T2= 1.0, T3= 1.2, and T4= 1.4 animal units/ha (AU/ha). In the 2nd period signalgrass was discarded because of poor condition of the pastures, and in the last grazing cycle …
Legume-Legume Complementary For Sustainable Pasture Development In The Tropics, M Peters, S A. Tarawali, R Schultze-Kraft, A Musa
Legume-Legume Complementary For Sustainable Pasture Development In The Tropics, M Peters, S A. Tarawali, R Schultze-Kraft, A Musa
IGC Proceedings (1977-2023)
The use of legume-legume mixtures to alleviate limitations of individual species in legume based technologies was investigated in subhumid Nigeria. The results indicate the potential of legume mixtures, through processes of complementation and compensation, to reduce the risk of legume establishment and survival and thus ensure sustainable legume yields and percentages. The implications for on-farm adoption of forage legumes are discussed.
Growth Of Heifers And Changes In Vegetation In A Natural Grassland Oversown With Caribbean Stylo, Vinod Shankar, J N. Gupta, V S. Upadhyay
Growth Of Heifers And Changes In Vegetation In A Natural Grassland Oversown With Caribbean Stylo, Vinod Shankar, J N. Gupta, V S. Upadhyay
IGC Proceedings (1977-2023)
The paper reports a three year study on the growth of heifers and vegetational changes in a natural grassland oversown with caribbean stylo and grazed in a deferred- rotational grazing system. There were two feeding treatments. One set of grazing heifers was given common salt only. The other set of heifers were given supplemental feeding of leucaena green @4 per cent or Leucaena hay @ 1 per cent body weight. The supplemental feeding of leucaena was beneficial in terms of body weight gain particularly during the dry summer months. Population of the caribbean stylo oversown in natural Sehima- Heteropogon …
Productivity Of Silphium Perfoliatum L. In Low Input Agricultural Systems, G Pichard, R Cussen, F Moore
Productivity Of Silphium Perfoliatum L. In Low Input Agricultural Systems, G Pichard, R Cussen, F Moore
IGC Proceedings (1977-2023)
There is a large area in the coastal region of southern Chile affected by low productivity of soils and severe climatic limitations, which is owned mainly by small farmers. This research was conducted with dairy farmers producing an average of 20,000 liters/year whose main problem is cattle underfeeding because of severe seasonal cycles in pasture growth and extended overgrazing of natural grasslands of low production potential. Silphium perfoliatum L. is a perennial forage species that grows well during the summer period when grasslands have stopped their growth due to moisture stress and high temperatures. Based on the agronomic results and …
Dry Matter Production And Nutritive Value Of Forage Of Digitaria Eriantha Cv. Irene In Two Locations Of The Central Semi-Arid Region Of Argentina, C A. Frasinelli, H J. Petruzzi, J H. Veneciano, C M. Ferri, V V. Jouve, N P. Stritzler, O A. Terenti
Dry Matter Production And Nutritive Value Of Forage Of Digitaria Eriantha Cv. Irene In Two Locations Of The Central Semi-Arid Region Of Argentina, C A. Frasinelli, H J. Petruzzi, J H. Veneciano, C M. Ferri, V V. Jouve, N P. Stritzler, O A. Terenti
IGC Proceedings (1977-2023)
The aim of this experiment was to compare dry matter (DM) production rates and nutritive value of a warm-season grass, Digitaria eriantha cv. Irene, in two locations of Central Argentina, Santa Rosa (SR) and Villa Mercedes (VM). The plants were established in two identical groups of plots, within a randomized block design. DM rates were calculated from serial, out of phase clippings, and in vitro dry matter digestibility (IVDMD) and crude protein (CP) content analyzed on subsamples. The study lasted for three consecutive growing seasons. Results showed that DM production rates were generally higher (P<0.05) in SR than in VM, but IVDMD and CP content showed no clear trends between both locations. DM production tended to lower from year 1 to 3, related to processes of N depletion from soils (VM) and diminishing rainfall (SR). It is concluded that D.eriantha is a very promising warm-season grass to Central Argentina. Data of nutritive value obtained in one location can be used in others, but results of DM production rates should be taken under the conditions where they will be used.
Separate Harvest Of Leaves From The Stems Of Lucerne Stands, L Schmidt
Separate Harvest Of Leaves From The Stems Of Lucerne Stands, L Schmidt
IGC Proceedings (1977-2023)
Lucerne leaves have significantly higher crude protein and lower crude fibre contents than the stems. The present methods for separating the leaves from the stems have serious deficiencies. Early harvesting, for example, weakens the lucerne stand, and sifting after artificial drying impairs quality. Above that, preparation of leaf protein concentrates is rather expensive. Field trials with a pronged cylinder which strips the leaves from the stems produced leaf yields of ž 80 % with a stem portion of £ 15 % (containing ž 26 % crude protein and £ 18 % crude fibre in the dry matter). Lucerne leaves can …
Persistence Of Contrasting Perennial Ryegrass- White Clover Mixtures At Two Defoliation Frequencies, A Elgersma, H Schlepers
Persistence Of Contrasting Perennial Ryegrass- White Clover Mixtures At Two Defoliation Frequencies, A Elgersma, H Schlepers
IGC Proceedings (1977-2023)
Mixtures of two cultivars of perennial ryegrass with contrasting growth habits and three white clover cultivars differing in leaf sizes were evaluated at two cutting frequencies to study white clover persistence. A trial was sown in 1991 on a clay soil. The plots received no nitrogen fertilizer. Throughout the years, mixtures with the large-leaved clover cv. Alice yielded significantly more herbage dry matter and had a higher clover content than mixtures with cvs. Gwenda and Retor. Companion grass cultivar did not consistently affect yield, nor botanical composition. Cutting at 2 t DM ha-1 resulted in slightly higher total annual yields …
Evaluation Of Five Bahiagrass Cultivars In Southwest Florida, R M. Muchovej, J J. Mullahey
Evaluation Of Five Bahiagrass Cultivars In Southwest Florida, R M. Muchovej, J J. Mullahey
IGC Proceedings (1977-2023)
Bahiagrass, mostly of the cultivar Pensacola, is the predominant grass in Florida and occupies two million hectares of the five million currently under pastures in the state. Several other cultivars exist and are available to ranchers through seed producing companies. This study compares five cultivars of bahiagrass (T-9, Pensacola, Argentine, Paraguay, and T-7) with respect to dry matter yield, nitrogen content, and digestibility in Southwest Florida. Evaluations were made at intervals of approximately 35 days from late June to early December. Forage production was greatest for T-9; this variety produced 35% more forage than Pensacola. All varieties behaved similarly regarding …
Bermudagrass Pastures Under Long-Term Stocking Rates And Fertility Regimes, F M. Rouquette Jr, G R. Smith, V A. Haby
Bermudagrass Pastures Under Long-Term Stocking Rates And Fertility Regimes, F M. Rouquette Jr, G R. Smith, V A. Haby
IGC Proceedings (1977-2023)
After 16 years of grazing ‘Coastal’ and common bermudagrass [Cynodon dactylon (L.) Pers.] pastures each at 3 levels of forage mass, N vs non-N fertilizer was superimposed to assess stand maintenance of bermudagrass and cow-calf performance. After 7 additional years of fertility treatments, N plus overseeded ryegrass (Lolium multiflorum Lam.) provided for 202 days grazing; whereas, K plus overseeded clovers (Trifolium incarnatum L.) and (T. vesiculosum Savi.) provided adequate forage for 179 days grazing. Coastal supported higher stocking rates (2.3 to 7.9 680-kg animal units(AU)/ha) than common bermudagrass (2.0 to 5.3 AU/ha). Suckling calf daily gains …
Effect Of The Cutting Frequency On Yield, Crude Protein And Mineral Contents Of A Panicum Maximum/Centrosema Macrocarpum Mixture, J Faria-Marmol, D E. Morillo, R Gonzalez, Z Chirinos
Effect Of The Cutting Frequency On Yield, Crude Protein And Mineral Contents Of A Panicum Maximum/Centrosema Macrocarpum Mixture, J Faria-Marmol, D E. Morillo, R Gonzalez, Z Chirinos
IGC Proceedings (1977-2023)
Dry matter (DM) yield, crude protein (CP) and mineral composition of Panicum maximum-Centrosema macrocarpum association as affected by three cutting frequencies (28, 42 and 56 days) were compared in a tropical dry forest of Venezuela. No differences (P<0.05) among defoliation frequencies for any of the variables were detected. All mineral concentrations evaluated in Guineagrass (P. maximum) were considered adequate for grazing ruminants. In C. macrocarpum only P (0.24%) and N (0.08%) were close to critical level for deficiencies in ruminants. P. maximum-Centrosema macrocarpum mixture offered adequate levels for grazing ruminants for all nutrients evaluated.
Effects Of Three Cutting Frequencies On Yield, Crude Protein And Mineral Contents Of Centrosema Macrocarpum, J Faria-Marmol, D E. Morillo, R Gonzalez, Z Chirinos
Effects Of Three Cutting Frequencies On Yield, Crude Protein And Mineral Contents Of Centrosema Macrocarpum, J Faria-Marmol, D E. Morillo, R Gonzalez, Z Chirinos
IGC Proceedings (1977-2023)
Dry matter (DM) yield, crude protein (CP) and mineral composition of Centrosema macrocarpum as affected by three cutting frequencies (28, 42 and 56 days) were compared in a tropical dry forest of Venezuela. DM yield and plant height were increased (P<0.05) by increasing the cutting intervals, whereas CP, ash and most minerals were not affected (P<0.05). Only P concentration declined (P<0.05) with increasing plant maturity. The lowest P concentration (0.18%) resulted from the longest cutting interval. Average CP concentration and mineral contents of C. macrocarpum were adequate with grazing ruminant requirements with exception of P (0.21%) and Na (0.073%).
Effect Of The Cutting Frequency On Yield And Crude Protein And Mineral Contents Of Panicum Maximum, D E. Morillo, J Faria-Marmol, R Gonzalez
Effect Of The Cutting Frequency On Yield And Crude Protein And Mineral Contents Of Panicum Maximum, D E. Morillo, J Faria-Marmol, R Gonzalez
IGC Proceedings (1977-2023)
Dry matter yield per cutting and total production, crude protein content and mineral composition of Guineagrass (Panicum maximum Jacq.) as affected by three cutting frequencies (28, 42 and 56 days) were evaluated in a wet/dry tropical area in Venezuela. Only CP was affected (P<0.05) by the cutting frequency, decreasing (P<0.05) from 11.9 to 9.2 % as the harvest interval increased. Mean DM yield per cutting and accumulated over the 336-day experiment (661 and 5140 kg/ha) were low, probably due to low rainfall (600 mm) during the trial. Mean macro (%) and microelement (ppm) concentrations were: Ca, 0.9; P, 0.31; Mg, 0.45; K, 2,17; Na, 0.09; Cu, 11; Fe, 133 and Mn, 269, which were regarded as nutritionally adequate for grazing ruminants .
Agronomic Evaluation Of Novel Germplasm Under Grazing: Arachis Pintoi Bra-031143 And Paspalum Atratum Bra-009610, A O. Barcellos, E A. Pizarro, N L. Costa
Agronomic Evaluation Of Novel Germplasm Under Grazing: Arachis Pintoi Bra-031143 And Paspalum Atratum Bra-009610, A O. Barcellos, E A. Pizarro, N L. Costa
IGC Proceedings (1977-2023)
The effect of the animal on the pasture and their reverse consequence was studied on two replicated areas of 0.27 and 0.18 ha in a grasslegume sward established in a poorly humid drained soil in the Brazilian Cerrado. The A. pintoi BRA-031143 and P. atratum BRA- 009610 sward was evaluated during four consecutive years under two grazing pressures (GP). The imposed GP affected the botanical composition and pasture availability. Mean live weight gain/animal/ day under the two imposed GP varied from 387+17g, 578+68g, 697+35g and 687+123g between the 1992/93 and 1995/96 rainy seasons. During the dry season the LWG/animal/day varied …
Relation Between Growth In Summer And The Overwintering Ability In Hybrid Pennisetum And Napiergrass Genotypes, Y Ishii, K Ito, S Shinohara
Relation Between Growth In Summer And The Overwintering Ability In Hybrid Pennisetum And Napiergrass Genotypes, Y Ishii, K Ito, S Shinohara
IGC Proceedings (1977-2023)
The growth in summer and the overwintering ability of interspecific hybrid (Hy) between pearl millet (Pennisetum glaucum) and napiergrass (P. purpureum) was compared with those of two napiergrass varieties, i.e. Wruk Wona (Wr) and Merkeron (Me) in the field. The Hy had smaller dry matter yield (DMY) and mean tiller weight with higher tiller number and in vitro dry matter digestibility (IVDMD) than Wr and Me at the end of July, but DMY and IVDMD were not significantly different among genotypes in November. Regrown percentage of plants, number and dry weight of regrown tillers after overwintering were the …
Overgrazing Impact Upon Rangeland Ecosystems Of Kazakstan Deserts, K Karibayeva
Overgrazing Impact Upon Rangeland Ecosystems Of Kazakstan Deserts, K Karibayeva
IGC Proceedings (1977-2023)
Vegetation dynamics trends are studies in connection with natural and human-induced factors. Interrelation of rangeland ecosystems with climate and grazing type is revealed. Degression, demutation and dynamics regulation diagrams are given for different conditions of use. Some quantitative and qualitative criteria were elaborated for rangeland ecosystems assessment. Ecosystem degradation indicators were identified, methods were elaborated for making subject maps for environmental assessment and sustainable management of grasslands. A method of seasonal cartographic rangeland cadastre was elaborated by the example of Volga - Ural sands on the basis of the map (S. 1:500,000)
Productivity Of Pasture Consisting Of Both Unimproved And Improved Areas In Aso Region Of Kyushu District, C Okamoto, K Kabata, K Tsuji, M Kikuchi
Productivity Of Pasture Consisting Of Both Unimproved And Improved Areas In Aso Region Of Kyushu District, C Okamoto, K Kabata, K Tsuji, M Kikuchi
IGC Proceedings (1977-2023)
Productivity of pasture consisting of both unimproved and improved areas was investigated in terms of conversion efficiency of solar energy into products and nutrient intake of animal. It was shown that animal production is mainly supported by the improved area in spring and late-autumn while the production is supported together by both areas in summer by reasons of increases in productivity of the unimproved area and productive depression in the improved area. CP/DE balance of grazed herbage was close to the requirement ofthe animal in the case where the unimproved area was grazed with the improved area rather than in …
Grassland Productivity In The Indian Himalaya And Performance Of Introduced Temperate Forage Species In Cold And Semi-Arid Environment, J R. Sharma, A N. Ghosh
Grassland Productivity In The Indian Himalaya And Performance Of Introduced Temperate Forage Species In Cold And Semi-Arid Environment, J R. Sharma, A N. Ghosh
IGC Proceedings (1977-2023)
Grasslands in the Himalayan ranges, particularly in the middle altitudes, are over-exploited by both sedentary and nomadic flocks. No systematic studies have been made to assess the productivity and carrying capacity of these grasslands so that suitable improvement measures could be adopted. A study conducted in the Shimla district of Himachal Pradesh (HP) at 2092, 2400 and 2895 meters above mean sea level (amsl) and varying soil conditions, showed that protection alone increased dry matter production between 9 and 188% over a three year period and average production in the third year from lower to higher altitude grasslands was 101.1, …
Nutrient Content Of Saskatchewan Native Range Plants, Zoheir Abouguendia
Nutrient Content Of Saskatchewan Native Range Plants, Zoheir Abouguendia
IGC Proceedings (1977-2023)
This study reports on the nutrient content and digestibility of five cool-season grasses common in the Mixed-Prairie Ecoregion of Saskatchewan, Canada: (1) green needlegrass (Stipa viridula Trin.); (2) needle-and-thread (Stipa comata Trin & Rupr.); (3) western porcupinegrass (Stipa curtiseta (Hitchc.) Backworth); (4) northern wheatgrass (Agropyron dasystachyum (Hook.) Scribn.); and (5) western wheatgrass (Agropyron smithii Rydb.). Plant material was collected monthly and analyzed for invitro organic matter digestibility ( IVOMD), crude protein (CP), P, Ca, ADF and NDF. All species showed similar intra-seasonal pattern in the various parameters studied and no species x month interactions were …
Effect Of Nitrogen On The Reserve Nutrients Of Rhizomes And Their Relation To Shoot Regrowth In Miscanthus Floridulus, Y C. Wang, M L. Lee
Effect Of Nitrogen On The Reserve Nutrients Of Rhizomes And Their Relation To Shoot Regrowth In Miscanthus Floridulus, Y C. Wang, M L. Lee
IGC Proceedings (1977-2023)
A 3-week-treatment of nitrogen dressings and of shoot cuttings were conducted on Miscanthus floridulus before the harvest. The nitrogen dressing increased the fresh weight and dry matter of the plants, but did not increase the plant height and shoot number. The reserved nutrients, especially the sugars and starch in the rhizomes were decreased by the cut treatments. Crude protein in the rhizomes was increased with the nitrogen amounts applied, though the carbohydrates were decreased. The decrease in reserved nutrients caused the growth inhibition of new shoots, and the more the reserved nutrients decreased the more severely was the growth inhibited. …
Sustainability Of Management Practices Of Mountain Pastures In Reunion Island (Indian Ocean), V Blanfort, P Thomas, G Balent, A Michon
Sustainability Of Management Practices Of Mountain Pastures In Reunion Island (Indian Ocean), V Blanfort, P Thomas, G Balent, A Michon
IGC Proceedings (1977-2023)
The grazing systems are an essential component of these volcanic highlands (1000-2000m). Our investigations consist of building up diagnosis tools and decision rules for a sustainable control of these fragile grazed ecosystems composed of native and sown pastures. The use of a systemic approach allows us to analyse the interrelationship between the vegetation dynamic and the agricultural practices through three biological indicators which relate to one hundred paddocks in six cattle farms. Concerning the vegetation dynamics, it seems that some management practices lead to a nonreversable degradation stage. As regards the forage system, the measure of sward-height and estimation of …
Litter Decomposition And Nutrients Release During Decomposition In A Humid Grassland Of Northeastern India, P S. Yadava, N S. Thoudam
Litter Decomposition And Nutrients Release During Decomposition In A Humid Grassland Of Northeastern India, P S. Yadava, N S. Thoudam
IGC Proceedings (1977-2023)
The litter decomposition and nutrient release of two dominant grass species Sporobolus indicus (L) R. Br., Leersia Hexandra SW. and mixed grasses was studies by litter bag technique in the humid grassland ecosystem at Imphal, Northeastern India. On ermination of experiment after 12 months, the shoots decomposed from 97.2 to 100% and the roots from 82.9 to 91.8% of different species. The rate of litter decomposition of shoots were higher than roots. The decomposition constant (K) also varied from species to species. It is positively correlated with soil moisture content during the study period. The initial nitrogen, lignin and lignin …