论文部分内容阅读
小麦是我省小春主要粮食作物。近年来,由于推广良种,改进栽培技术,扩大复种,增施肥料和加强植物保护等工作,产量有了较大幅度的提高,基本改变了长期稳而不高的局面。今后如何继续提高单产,成了突出问题。从肥料角度看,不足的矛盾虽仍突出,但一些条件较好的地区,由于氮肥用量过多,磷钾肥配合不当,引起了肥效低,成本高的问题。为此,我们从1978年起围绕小麦高产施肥问题,研究了我省主要土壤,主要小麦品种,在川西平原区亩产800斤左右,丘陵区亩产600斤左右,在农家肥基础上适宜的氮肥用量及氮磷钾比例,取得初步结果,现报告于后。
Wheat is the main spring wheat food crop in our province. In recent years, due to the promotion of improved varieties, improvement of cultivation techniques, expansion of multiple cropping, application of fertilizers and enhancement of plant protection, the output has been greatly improved and the long-term stability has been basically changed. How to continue to raise yields in the future has become a prominent issue. From the point of view of fertilizer, the contradiction is still outstanding, but in some areas with better conditions, due to the excessive amount of nitrogen fertilizer and the improper combination of phosphorus and potassium fertilizer, it causes the problem of low fertilizer efficiency and high cost. To this end, we started from 1978 on the issue of high-yield wheat fertilization, the study of the main soil in our province, the main wheat varieties in the western plain of about 800 kg per mu, hilly area about 600 pounds per mu, based on farmyard manure suitable The amount of nitrogen fertilizer and the proportion of nitrogen, phosphorus and potassium, to obtain preliminary results, are reported later.