Soil Science Commons^™

The Effect Of Megachilla Rotundata On The Yield And Qualitative Characters Of Alfalfa Seed, B Radenovic, S Starcevic

IGC Proceedings (1977-2023)

The increasing use of insecticides in the Yugoslav agriculture, ploughing of meadows and pastures and the expan­sion of areas under alfalfa grown for seed have resulted in the reduction of useful entomofauna and thus also in the decline of yields of alfalfa seed due to the reduced number of pollinators. This was first indicated upon in the United States, by Knowels, 1943, and in Yugoslavia, it was pointed out by Bosnjak, 1978 and Radenovic and Starcevic, 1982. All these authors agree that there is a positive correlation between the number of Megachillidae, the number of open flowers and embryos. According …

Determination De L’Effet Du Phosphore Et Des Intervallets D’Irrigation Sur La Production De Graines De Trefle Bersim En Iran, A Vaez Zadeh

IGC Proceedings (1977-2023)

La culture du trefle Bersim (Trifolium alexandrinum) devient de plus en plus importante en Iran. Elle est pratiquee dans les rizieres apres la recolte du riz. Aujourd'hui, cette culture s'etend sur 40.000 ha et la production atteint 500.000 tonnes de foin sec, soit un rendement moyen de 12.5 t/ha. Le ministere de !'Agriculture developpe un important programme pour augmenter la superficie jusqu'a 200.000 ha. Ceci correspondra a la moitie de toutes Jes rizieres. La culture du trefle Bersim s'est fortement developpee pen­dant ces dernieres annees en Iran: la superficie a augmente de 578,5 ha en 1982 a 39.500 …

Seed Yield, Fodder Yield And Persistence In White Clover Cvs Of Different Origins. Results Of Trials Conducted At Lodi (Irrigated Po Valley), R Paoletti, C Locattello

IGC Proceedings (1977-2023)

White clover is the most important pasture legume in many EEC countries (white clover-ryegrass pasture system) and a good component of permanent and rotated polyphytic meadows in North Italy (irrigated Po Valley where the Ladino subspecies developed through self selection). The main char­acteristics of the species are N2 fixation and high nutritional value (quality). Therefore, white clover seed usage in the EEC is expected to still be important in the next decades. A number of performing varieties have recently been developed by EEC Research Institutes. An assessment of their seed production potential is necessary in view of self-sufficiency and consequent …

Inoculant Production With Gamma Irradiated Peat And Lyophilized Cultures Of Rhizobium. Survival On Pelleted Seeds And Mineral Oil, M Lopez, R S. Bradley

IGC Proceedings (1977-2023)

In tropical countries one of the ways of improving inoculant distribution consists on seed-pre-inoculation and on the pro­duction of lyophilized inoculants allowing a higher viability during the storage period. Thus, it is necessary to learn the rhizobium survival in pre-inoculated seeds and in lyophilized flasks, as well as in mineral oil used as a rhizobium carrier.

Les Inineraires Techniques Pour La Production De Semences De Trefle Blanc En France, J Aletru, Y Bouchet

IGC Proceedings (1977-2023)

Le Trefle blanc est une legumineuse fourragere ayant une morphologie et une physiologie tout a fait originales par rapport aux autres especes fourrageres que nous avons l'habitude de travailler : luzerne, trefle violet, sainfoin, etc. Le Trefle blanc a un port rampant, l'essentiel de la croissance s'effectue horizontalement, Jes parties aeriennes sont consti­tuees de petioles, de feuilles en phase vegetative, auxquelles s'ajoutent des pedoncules et des inflorescences en phase repro­ductrice. Le stolon, « colonne vertebrale » des parties aeriennes, est l'organe de reserve ayant une importance preponderante. II colonise le sol en emettant de 70 a 110 metres de stolons …

Environmental Considerations For Lotus Production: Seed Versus Herbage, P R. Beuselinck, R L. Mcgraw

IGC Proceedings (1977-2023)

Broadleafed birdsfoot trefoil (Lotus corniculatus L.), is recognized for good productivity on marginal soils (Seaney and Henson, 1970), high feeding value (Marten and Ehle, 1984), stock-piling efficiency (Collins, 1982) and freedom from bloat­inducement in ruminants (Marten and Jordan, 1979) makes it a worthy herbage crop for many areas and grazing situations. The most productive USA areas are New England, the West Coast, the North Central Plains, and some isolated areas of higher elevations in the South (Grant and Marten, 1985). Difficulty in harvesting sufficient quantities of seed is a major factor limiting the use and production of birdsfoot trefoil in …

Agricultural Behaviour Of Lablab Purpureus Cv. Rongai Under Cuban Conditions, V A. Remy, C Matias, A Perez, M Beavogui

IGC Proceedings (1977-2023)

Production strategy of livestock in Cuba is based upon the utilization of swards as the main feeding source. Nevertheless, the climatical conditions that exist in certain period of the year lead to a seasonal productive unbalance due to the decreasing sequence of rainfall. Several alternatives have been adopted against this situation and one of them is the utilization of tem­porary cultivars. Taking into consideration the previous situation, the possi­bility of spreading Lablab purpureus, the suitable growth that it presents under temperatures among 18-30 °C (Duke, 1983), rainfall among 200-2500 mm (National Academy of Science, 1979) and its seed production from …

Influence Of The Manner Of Sowing And Vegetation Cycle On The Yield And Seed Quality Of Birdfoot Trefoil (Lotus Corniculatus), D Gataric, S Alibegovic-Grbic

IGC Proceedings (1977-2023)

In ecological conditions of Yugoslavia, birdsfoot trefoil, with its positive features, presents a very significant fodder crop, especially for the hill and mountain regions. However, due to poor seed production technology, there is a shortage of seed for more intensive production. Seed is usually produced on areas intended for the production of fodder, hand sown with large quantities of seed (25-35 kg/ha). The study was undertaken. with the following targets : I/determining the influence of the manner of sowing and veg­etation cycle on the yield and the quality of seed ; 2/ determin­ing the optimum sowing manner and vegetation cycle …

Nouvelles Possibilites De Lutte Contre Les Ravageurs De La Luzerne Porte-Graine En France, J Hacquet

IGC Proceedings (1977-2023)

La mai'trise des insectes ravageurs dans la luzerne porte­graine est une necessite pour l'obtention de rendements eleves et reguliers. La collaboration etroite entre le Service Technique de la FNAMS et la Laboratoire de Zoologie de l'INRA de Lusignan a permis d'inventorier les differents ravageurs, de mettre au point une panoplie de traitements et de faire connai'­tre les moyens de lutte aupres de tous Jes praticiens de cette cul­ture (FNAMS-INRA, 1980 et 1986). De plus des reseaux d'Avertissements Agricoles ont ete mis en place et suivis par le Service de la Protection des Vegetaux, avec la participation des professionnels (Perron, 1987). …

Variation Of Seed Yield And Its Components In Common Vetch (Vicia Sativa L.) Under Different Conditions, E Acikgoz, I Turgut, H Ekiz

IGC Proceedings (1977-2023)

Common vetch (Vicia sativa L.) is widely used as a seed or hay crop in Turkey. In humid coastal areas it is principally used fot hay or green herbage while in dry regions it is used mostly for seed. Roughly ground vetch seed is a popular concentrated feed and mixed with straw or cereal grain (A9ikg6z, 1988). Approximately 200.000 ha of common vetch are seeded every year in Turkey. It is sown mostly as a spring-seeded crop and is often subjected to severe heat and drought stress as the season progress. Yields are generally low with an average seed …

White Clover Seed Production In Two Mediterranean Environments Of Tuscany And Sardinia, P Bullitta, Simonetta Bullitta, A Pardini, S Piemontese, P P. Roggero, P Talamucci

IGC Proceedings (1977-2023)

Purpose of the trialwas the identification of the most suitable varieties for white clover Trifolium repens L. seed production in Mediterranean environments. The main reason of this paper is to verify whether it is possible to produce seed of European varieties of white clover in south Europe considering that surfaces for seed production are decreasing in the northern European countries that were normally producers of white clo­ver seed. The production of clover seed in southern Europe could advantageously replace the import from New Zealand and California.

Vegetative Propagation Of White Clover An Application In White Clover Seed Production, P C.D Newton, A I. Popay

IGC Proceedings (1977-2023)

Establishment of white clover for agricultural purposes is invariably by seed. However, natural regeneration is almost entirely vegetative (Chapman, 1987), and flowering may be restricted to a small proportion of individuals within a popu­lation (Burdon, 1980) When white clover is present in the soil seedbank, there is potential for both intra- (between classes) and inter-varietal contamination of seed crops. Lancashire et al., (1985) have commented that genetic contamination of white clover seed is a world-wide problem. Volunteer seedlings may be removed from between the crop rows mechanically, but there remains an untreatable area close to the crop which is available …

Viability Of Stylosanthes Seeds As Affected By Storage Duration, J B. Brolmann, B J. Boman

IGC Proceedings (1977-2023)

Tropical legumes such as members of the genus Stylosanthes (sty lo) contribute to the improvement of pastures in the tropics and sub-tropics. Stylosanthes is usually established from seed. In Florida, seed of Stylosanthes has to be produced and col­lected before the onset of the winter since occasional frosts can damage seed-bearing vegetation. Therefore, early maturing Stylosanthes varieties have been developed. In stylo seed collections maintained for breeding or seed exchange purposes, maintenances of seed viability is critical. New pests or new diseases may require a renewed screening of stored accessions. It is important, then, that the seed source of this …

Modification Of Stolon Growth, Development And Flowering By Plant Growth Regulators In White Clover (Trifolium Repens L.) Seed Crops, A H. Marshall, D H. Hides

IGC Proceedings (1977-2023)

Within the EEC the need to develop low cost less intensive systems of animal production has led to an increase in the importance of legumes generally, and white clover in particu­lar. At present, annual white clover seed usage within the EEC is approximately 4,000 tonnes, however, the self sufficiency rate is expected to fall below 50 % by the end of the 1980s due prin­cipally to unpredictable seed yields which make it an unprofit­able crop for seed growers. The main component of seed yield in white clover is the number of ripe inflorescences at harvest (Zaleski, 1961) however, the proportion …

Growth Regulator Effects On Seed Production Of Lotus Corniculatus L. And Lotus Uliginosus Schkuhr., J G. Hampton, Qingfeng Li, M D. Hare

IGC Proceedings (1977-2023)

Seed yield in both Lotus corniculatus L. and Lotus uliginosus Schkuhr. (syn. L. pedunculatus Cav.) is considered to be limited by the indeterminate growth habit which results in a protracted (2-4 month) flowering period (Witchwoot, 1987; Li and Hill, 1988) leading to wide variation in seed maturity and seed loss through pod shattering. In both species seed yield is determined primarily by the number of inflorescences (Mos, 1983 ; Wit­chwoot, 1987), and thus treatments which alter or remove api­cal dominance, enhance shoot production or main stem bran­ching thereby increasing inflorescence numbers (Clifford et al., 1983 ; Li and Hill, 1988), …

Plant Resources And Forage Seed Production In China, Dong Peihua

IGC Proceedings (1977-2023)

China is situated in the Eastern part of Asia ; from North to South it extends across the temperate and tropical zones. From East to West it has humid, semiarid, arid regions. There is no frost through the year in some part ofHainan Island, Yunnan, Guangdong and Taiwan provinces. Therefore plants grow the year round and there is a wide range of tropical species. The geographical and climatical differences resulted in rich grass resources. There are three hundred million hectares of natural pastures in Northern China, with more than 4000 plant species. These plants have different degrees of feeding value. …

The Effect Of Weed Control Using Herbicide On Soil Bacteria, Growth, And Yield Of Sweet Corn, Lafi Na'imatul Bayyinah, Purwanto, Risqa Naila Khusna Syarifah, Rama Adi Pratama, Ida Widiyawati, Hendra

Jurnal Kultivasi

Weeds are managed by herbicides, but this can reduce the abundance of soil bacteria. This research aimed to determine the effect of active compounds of herbicides on weeds, the abundance of soil bacteria, growth and yield of sweet corn. The experiment was conducted from June to October 2023 in the fields and Laboratory of Agronomy and Horticulture, Universitas Jenderal Soedirman, Purwokerto. A randomized block design was used, consisting of eight treatments and four replications. The treatments included control (H0); weeding (H1); paraquat (H2); glyphosate (H3); paraquat, atrazine, mesotrione (H4); glyphosate, atrazine, mesotrione (H5); paraquat, atrazine, mesotrione, nicosulfuron (H6); and glyphosate, …

Detection Of Microplastics In The Hindgut Content Of Zophobasmoriolarvae, Zoey Drexler

Posters - 2025

Microplastic and nanoplastic pollution is a growing environmental concern, with potential impacts on soil ecosystems and the organisms within them. Insects play a crucial role in soil health, and their digestive processes may influence the fate of microplastics in terrestrial environments.

Detection of micro- and nano-plastic particles in complex mixtures such as soil, sediments, and feces is difficult because these small particles often resemble particles of mineral or organic materials. One way to visualize them more specifically is by using Nile Red, a stain which is a dull blue when in aqueous on hydrophilic conditions, but which fluoresces bright red …

Exploring Biostimulant Efficacy Under Limited Fertilizer And Water In Utah's Watermelon Production, Evan Christensen, Milena Maria Tomaz De Oliveira, Prakriti Nepal, Youping Sun

Plants, Soils, and Climate Faculty Publications

The western U.S. has recently experienced some of the driest conditions on record, and Utah has been in a multi-year drought (2019-2023) that affected the agricultural sector, including vegetable producers. While vegetables are not a primary agricultural crop in Utah, they are still an important part of the horticultural economy with 763 farms growing 6,138 acres. As the fourth largest acreage vegetable crop in Utah (almost 10% of the acreage) watermelon and related crops in the gourd family Cucurbitaceae (nearly 36% of total vegetable acreage) are important to vegetable growers. Watermelon is a water-intensive crop and requires an adequate supply …

Innovative Soil Classification Approach For Achieving Global Biodiversity Framework Utilizing Integrated Data Fusion Of Emit And Multispectral Satellite Observations: Case Study Of Imam Turki Bin Abdullah Royal Reserve, Kingdom Of Saudi Arabia, Hesham Morgan, Ali Elgendy, Surendra Maharjan, Wenzhao Li, Tamer Ismail, Yehya Kh. Shehadeh, Ahmed Elgharib, Ahmed Abdullah Al-Dughairi, Ali El Muburak, Khaled Allam Harhash, Hesham El-Askary

Mathematics, Physics, and Computer Science Faculty Articles and Research

Soil classification is essential for sustainable land management, ecological conservation, and combating desertification, particularly in arid and semi-arid regions. This study integrates hyperspectral data from the Earth Surface Mineral Dust Source Investigation (EMIT) and multispectral imagery from Sentinel-2 to achieve accurate soil classification for the Imam Turki bin Abdullah Royal Reserve (ITBA) in Saudi Arabia. Using advanced Machine Learning (ML) techniques, including Extreme Gradient Boosting (XGBoost), the study highlights the power of data fusion in addressing the limitations of standalone remote sensing methods. The integration of hyperspectral and multispectral data combines the spectral richness of hyperspectral imaging with the spatial …