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在油菜栽培的人为可控因子中,选取移栽期、移栽密度、基肥、腊肥和薹肥用量等进行多因素、多水平、多指标的试验研究.微机运算结果表明:单产稳定超过150公斤的一次项效应为密度>基肥>薹肥>腊肥>栽期。作者的分析认为:在淮北中低生产水平条件下,增加群体产量的重要措施乃是采用壮苗适当密植,适时移栽是培育壮苗越冬、春后稳长的条件,合理的肥料运筹是取得高产的重要基础,而综合的农艺措施是经济高产的关键.本文还提出了优化农艺措施的概括性指标.
Among the artificially controlled factors in rapeseed cultivation, the multi-factor, multi-level and multi-index experimental studies were conducted on the transplanted period, the transplanting density, the basal fertilizer, the manure and the sedge fertilizer etc. The results of the computerized calculation showed that: One-time effect of kilograms of density> base fertilizer> sedge fertilizer> waxy> planting period. The author’s analysis shows that: in Huaibei, low-level production conditions, an important measure to increase population yield is to use strong and proper planting close planting, timely transplanting is to cultivate strong seedlings wintering, stable condition after spring, reasonable fertilizer operation is to obtain High yield, and comprehensive agronomic measures are the key to economic high yield.This paper also put forward the general indicators of the optimization of agronomic measures.