Power, J.F., Wilhelm, W.W. and Doran, J.W., 1986. Crop residue effects on soil environment and dryland maize and soya bean production. Soil Tillage Res., 8 : 101-111. The research reported here provides data on the effects of crop residues o n the surface of no-till soil upon the soil environment and resulting biological activity, including crop growth. For maize (Zea mays L.) and soya bean [Gl...

Anaerobic digestion is an optimal way to treat organic waste matter, resulting in biogas and residue. Utilization of the residue as a crop fertilizer should enhance crop yield and soil fertility, promoting closure of the global energy and nutrient cycles. Consequently, the requirement for production of inorganic fertilizers will decrease, in turn saving significant amounts of energy, reducing g...

Management practices, such as tillage, crop rotation, and N fertilization, may affect net global warming potential (GWP) and greenhouse gas intensity (GHGI), but their global impact on cropland soils under different soil and climatic conditions need further evaluation. Available global data from 57 experiments and 225 treatments were evaluated for individual and combined effects of tillage, cro...

The effect of cover crop (CC) surface residues on water, carbon, and nitrogen cycling in no-till systems depends part the water retention properties decomposing extent decomposition. This study (1) examined decomposition residue properties; (2) characterized diurnal variations rates response to changes soil-residue-air environmental conditions; (3) relationships between environment (moisture te...

Elevated atmospheric CO2 concentration can increase biomass production and alter tissue composition. Shifts in both quantity and quality of crop residue may alter carbon (C) and nitrogen (N) dynamics and management considerations in future CO2-enriched agroecosystems. This study was conducted to determine decomposition rates of the legume soybean [Glycine max (L.) Merr.] and nonlegume grain sor...

Current methods to estimate exposure of wildlife to pesticides from diet depend on a database of published residue concentrations on crop plants normalized to a standard application rate to obtain a residue from a unit dosage (RUD). This database, first published in the early 1970s, was updated in the 1990s. For each category of crops, maximum and mean residues are determined and used to extrap...