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Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Grasslands As A Comparative For Farming Practices' Influence On Carbon/Nitrogen Dynamics, S A. Clancy, M E. Biondini, J C. Gardner
Grasslands As A Comparative For Farming Practices' Influence On Carbon/Nitrogen Dynamics, S A. Clancy, M E. Biondini, J C. Gardner
IGC Proceedings (1997-2023)
A remnant prairie was used for comparison of the soil as a natural resource among alternative and conventional farming systems. Beginning and ending biotic and abiotic characteristics were quantified directly. Carbon and N flow was calculated using CENTURY model. Carbon decay was not tied to the size of the soil organic matter pool (SOM), but to crop choice. Nitrogen decay was linked to the size of the SOM pool. Nitrogen fertilizer depressed the amount of N mineralized by soil biota. The alternative farming systems in North Dakota (no-till and green-manure fallow) more nearly mimic the ecosystem processes of the prairie …
Biological Stimulants Increase Fertilizer Efficiency And Pasture Legume Content, P. R. Espie, S. Haswell, A. Barton
Biological Stimulants Increase Fertilizer Efficiency And Pasture Legume Content, P. R. Espie, S. Haswell, A. Barton
IGC Proceedings (1997-2023)
The effects of a soil biological stimulant (SS) and biologically activated reactive phosphate rock (BAP) on pasture yield and botanical composition were examined in a field trial in low-fertility New Zealand rangeland. BAP application significantly increased pasture yield by 60% and BAP plus biostimulant increased yield by 120%. BAP significantly increased resident legume cover by 75% and BAP with biostimulants by 85%. Alfalfa, direct drilled as an indicator test species, increased in establishment from 0 to 3.8 plants m-2 with BAP and to 4.2 plants m-2 with BAP plus biostimulant. Biostimulant applied alone increased yield by 17%, legume cover by …
Multifunctionality Of Sown Grassland Is Enhanced By Combining Four Complementary Species, M. Suter, O. Huguenin-Elie, Andreas Lüscher
Multifunctionality Of Sown Grassland Is Enhanced By Combining Four Complementary Species, M. Suter, O. Huguenin-Elie, Andreas Lüscher
IGC Proceedings (1997-2023)
We investigated species diversity effects and multifunctionality in an intensively managed grassland. A diversity experiment was set up with monocultures and mixtures comprising Lolium perenne, Dactylis glomerata, Trifolium pratense, and Trifolium repens, and was maintained for three years at 150 kg∙N∙ha-1∙ year-1. Ten functions were measured that represented i) forage production (aboveground biomass yield (μ), standard deviation of yield (σ), temporal stability (μ/σ), weed biomass), ii) N cycling (symbiotic-N2-fixation, N efficiency, NO3 in soil solution), and forage quality (crude protein content (CP), organic matter digestibility …
Sustainable Agricultural And Rural Development In Semi‐Arid Environment When Supplementing Rainfall With 200 Mm Irrigation Water Per Year, Benzarti Jalila, Ben Youssef Salah
Sustainable Agricultural And Rural Development In Semi‐Arid Environment When Supplementing Rainfall With 200 Mm Irrigation Water Per Year, Benzarti Jalila, Ben Youssef Salah
IGC Proceedings (1997-2023)
No abstract provided.
Contribution Of Annual Legumes Pasture To The Cereal In Mediterranean Agriculture Systems, Carlos Ovalle, Soledad Espinoza, Alejandro Del Pozo, Viviana Barahona
Contribution Of Annual Legumes Pasture To The Cereal In Mediterranean Agriculture Systems, Carlos Ovalle, Soledad Espinoza, Alejandro Del Pozo, Viviana Barahona
IGC Proceedings (1997-2023)
The depletion of fossil fuels, the high demand of food for a constantly growing human population and, more recently, the strong expansion of biofuel crops, are causing sharp increases in the prices of fertilizers particularly nitrogen (N)(Crews and Peoples 2004; Jensen et al. 2011). Faced with this future scenario of high cost of N fertilizer, there is increasing interest in using legumes as N sources for sustainable agriculture and livestock. In the dryland (rainfed) cropping area of the Mediterranean climatic region of central Chile, bread wheat (Triticum aestivum) is predominantly grown in rotation with oats (Avena …