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川西平原气候、土质、水利条件都比较好,是我省小麦的重要产区。六十年代以来,随着生产条件的改善和良种的推广,推行了条播密植、增苗增穗的措施,促进了大面积小麦低产变中产,一些社队实现了中产变高产。当前,一方面应大力推广这些经验;同时要积极探索高产更产的途径,以适应生产发展的需要。现根据我们近几年来调查总结和试验研究取得的结果,综合过去的一些资料,对川西平原小麦高产的途径作一初步分析。一、增苗增穗是低产变高产的有效途径五十年代,川西平原的小麦多是宽行稀播,一般行距1尺多,每亩基本苗10万左右,成穗15万左右,单穗重约1克,亩产仅200多斤。当时的突出问题是施肥很少,以纯氮计,每亩仅
Western Sichuan Plain climate, soil, water conditions are better, is an important province of wheat producing areas. Since the 1960s, along with the improvement of production conditions and the promotion of fine varieties, measures were implemented to increase planting density and increase grain yield. Large-area wheat was promoted to have low-yielding and middle-yielding while some communes and brigades achieved middle-level high yield. At present, on the one hand, these experiences should be vigorously promoted. At the same time, we must actively explore ways to increase production and production to meet the needs of production development. Based on the results of surveys and experimental studies conducted in recent years and based on some past data, we make a preliminary analysis on the ways of high-yield wheat in the western Sichuan plain. First, increase seedling by ear is an effective way to low-yield and high yield In the fifties, mostly in the western Sichuan Plain broad-band thinning sowing, the general spacing of more than 1 foot per mu of basic seedlings about 100,000, about 150,000 into a spike Weigh about 1 gram, only 200 kilos per mu. At that time, the outstanding problem was very little fertilizer, with pure nitrogen, only per acre