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economic feasibility of no-tillage and manure for soil carbon sequestration in corn production in northeastern kansas.this study examined the economic potential of no-tillage versus conventional tillage to sequester soil carbon by using two rates of commercial n fertilizer or beef cattle manure for continuous corn (zea mays l.) production. yields, input rates, field operations, and prices from an experiment were used to simulate a distribution of net returns for eight production systems. carbon release values from direct, embodied, and feedstock energies were estimated for each system, and were used with soil c ...200616825456
crop residue and residue management effects on armadillidium vulgare (isopoda: armadillidiidae) populations and soybean stand densities.in general, armadillidium vulgare (latreille) are considered nonpests of soybean [glycine max (l.) merrill], but changes in soil conservation practices have shifted the pest status of this organism from an opportunistic to a perennial, early-season pest in parts of central kansas. as a result, soybean producers that rotate with corn (zea mays l.) under conservation tillage practices have resorted to removing excess corn residue by using controlled burns. in a 2-yr field study (2009-2010), we dem ...201223156159
the freundlich adsorption isotherm constants and prediction of phosphorus bioavailability as affected by different phosphorus sources in two kansas soils.phosphorus (p) adsorption onto soil constituents influences p bioavailability from both agronomic and environmental perspectives. in this study, the p availability from different p sources along with utility of freundlich adsorption coefficients on the predictability of various crop growth parameters were assessed. two soils were amended with 150mgpkg(-1) each from six different p sources comprised of manures from two types of ruminants animals, three types of monogastric animals, and inorganic ...201424238913
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