Soil sorptivity enhancement with crop residue accumulation in semiarid dryland no-till agroecosystems

Soil sorptivity enhancement with crop residue accumulation in semiarid dryland no-till agroecosystems

Soil Organic Carbon Pools After 12 Years in No-Till Dryland Agroecosystems

the slow pool, with decadal turnover times, while 5% of the SOC is found in the rapidly cycling active fraction, Previous studies of no-till management in the Great Plains have with turnover times ranging from hours to months (Folshown that increased cropping intensity increased soil organic carbon (SOC). The objectives of this study were to (i) determine which soil lett, 2001; Shaffer et al., ...

Crop Residue Removal and Soil Productivity with No-Till Corn, Sorghum, and Soybean

Crop residues have been considered during the past decade as alternate energy sources to supplement dwindling fossil fuel sources and enhance energy independence in the United States. Agricultural scientists have demonstrated the importance of crop residues in reducing soil erosion, enhancing the soil physical environment for plant growth, and as a reserve for major crop nutrients. In eastern N...

Simulating landscape catena effects in no-till dryland agroecosystems using GPFARM

USDA-ARS, Agricultural Systems Research Unit, 2150 Centre Ave., Bldg. D, Suite 200, Fort Collins, CO 80526, USA Department of Soil and Crop Sciences, C127 Plant Sciences, Colorado State University, Fort Collins, CO 80523, USA Department of Civil and Environmental Engineering, Colorado State University, Fort Collins, CO 80523, USA Department of Agricultural and Resource Economics, Colorado State...

Grazing and no-till cropping impacts on nitrogen retention in dryland agroecosystems.

As the world's population increases, marginal lands such as drylands are likely to become more important for food production. One proven strategy for improving crop production in drylands involves shifting from conventional tillage to no-till to increase water use efficiency, especially when this shift is coupled with more intensive crop rotations. Practices such as no-till that reduce soil dis...