Browse on keywords: fertility no-till tillage
Search results on 03/22/18
935. Bolton, F.E.. 1990. Starter fertilizer trials - no-til.. Sherman Station Field Days, OSU, Moro, OR.
The use of starter fertilizer, including N, P, and S in various combinations, was examined for no-till winter wheat and winter barley. Variable results occurred, but yield increased were measured in most years. About 3 out of 5 times, the increase was economically feasible. Overall yields under no-till averaged equal to or slightly lower than conventional tillage.
3259. Pan, W.L., B.A. TIllman, and S.E. Ullrich. 1991. Ammonium and nitrate uptake by barley genotypes in diurnally fluctuating root temperatures simulating till and no-till conditions.. Plant Soil 135:1-8.
The morphological development and N uptake patterns of European and PNW spring barley cultivars were compared under conditions simulating soil temperature differences between till and no-till conditions observed during early spring in eastern WA. All genotypes absorbed more ammonium than nitrate. Overall, the data indicate that lower maximum daytime temperatures of the soil layer likely account for a significant portion of the growth reductions and lower N uptake observed in no-till systems.
3770. Krchnavy, Z. and M. Ambrozova. 1979. The function of the biological component of soil in the no-tillage monoculture wheat-growing system.. Rostlina Vyroba, 25(9):893-900.
Studied the interaction of organic manuring (cattle slurry, catch-crop for green manuring, and combination) and a five- to eight-year monoculture of winter wheat sown in uncultivated soil. Results indicate that for almost all microbial indices, particularly those concerning the conversion of carbonaceous substances, ammonification and phosphate activity, higher values can be observed in the soil left without ploughing than in the cultivated soil. Nitrification decreased. The combination of the catch crop and sowing in uncultivated soil encourages the general biological activity more intensively than in the case of ploughed soil.
10406. Pan, W.L. and A.G. Hopkins. 1991. Plant development, and N and P use of winter barley. II. Responses to tillage and N management across eroded toposequences.. Plant Soil 135:21-29.
Winter barley was grown at three landscape positions of a representative toposequence in the Palouse region. Direct drilling (no-till) into crop residues increased yields by 16% over conventional tillage at an eroded ridgetop position, despite early season growth inhibition. Tillage system had no effect on grain production at other landscape positions that featured higher overall yields. Short-term benefits of no-till systems may be most evident at slope positions where water use is most limited.