Browse on keywords: fertility wheat no-till
Search results on 01/23/19
961. Bolton, F.E.. 1988. Liquid starter fertilizers on winter wheat and barley in no-till plantings.. Columbia Basin Agr. Res. Sta. Special Report #827, p.33.
Liquid starter fertilizer on winter wheat and barley in no-till plantings.
2033. Fowler, D.B. and J. Brydon. 1989. No-till winter wheat production on the Canadian Prairies: timing of nitrogen fertilization.. Agron. J. 81:817-825.
Tested the effect of timing of a broadcast application of ammonium sulfate on grain and protein yield and protein concentration. Lower grain yield, grain protein yield and grain protein concentration were attributed to loss of fall applied N in four trials. Increased grain protein concentration was often associated with delayed N availability. Reduced grain and grain protein yield, and increased grain protein concentration were observed for fall and early spring N applications in trials that experienced favorable spring weather followed by a prolonged drought.
2043. Fowler, D.B. and J. Brydon. 1989. No-till winter wheat production on the Canadian prairies: placement of urea and ammonium nitrate fertilizers.. Agron. J. 81:518-524.
A practical snow management system, which utilizes no-till seeding into standing stubble immediately after harvest, has permitted expansion of winter wheat production in western Canada. This study examined grain responses to urea and ammonium nitrate fertilizer banded and broadcast at seeding, or broadcast in the late fall or early spring. A moisture shortage biased the results. Fall banding prior to seeding helped reduce volatilization losses of urea (which were as much as 50%), but presented other problems and did not outperform broadcast ammonium nitrate.
2756. Huggins, D.R., W.L. Pan, and J.L. Smith. 1989. Improving yield, percent protein, and N use efficiency of no-till hard red spring wheat through crop rotation and fall N fertilization.. Proceedings, 40th Far West Fertilizer Conference,.
In a field experiment near Pullman, WA, all fall and split fall-spring N applications significantly increased percent protein and N uptake efficiency as compared to all spring applications, while yields were unaffected. Protein increase was attributed to enhanced late season uptake, due to better positional availability of deep soil N. In another experiment, yield of hard red spring wheat was 10% greater when no-tilled into Austrian winter pea stubble (for seed) as compared to winter wheat stubble, while grain N and percent protein were not affected. The difference in yield was not eliminated by optimized N rates, indicating other rotation effects.
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.