论文部分内容阅读
小麦是川西平原小春主要粮食作物,亩产已达600斤左右,施肥水平也较高,如何进一步增加小麦产量,提高肥料利用率,是生产上亟待解决的问题。为此,我们于1980—1982年在广汉县主要土壤上进行了小麦高产经济施肥试验和大田示范。试验在农肥(亩施猪粪尿3000斤、油枯50斤、干粪500斤)基础上增施碳铵88—118斤(折纯氮15—20斤)、过磷酸钙50斤、氯化钾15斤,设无肥、农肥和施氮、氮磷、氮钾、氮磷钾等6个处理。干粪、油枯和磷钾混匀后作盖种肥;猪粪尿1000斤作种肥淋于播种沟内,1000斤作分蘖肥,1000斤作拔节肥。碳铵以三分之二作底肥,三分之一作分蘖肥,兑于猪粪尿内用。底肥施用,先开2—3寸深的施肥沟,然后按规定将碳铵分沟定
Wheat is the main spring grain crop in the western Sichuan plain. The yield per mu has reached about 600 kg and the fertilization level is also high. How to further increase the yield of wheat and increase the fertilizer utilization rate is an urgent problem to be solved in production. Therefore, in 1980-1982, we conducted high-yielding wheat experiment and field demonstration on the main soils of Guanghan County. Experiments in the fertilizer (Mushi pig manure 3000 kg, 50 kg dry oil, dry manure 500 kg) based on the addition of ammonium bicarbonate 88-118 kg (folded pure nitrogen 15-20 kg), 50 kg of superphosphate, chlorination Potassium 15 pounds, no fertilizer, fertilizer and nitrogen, nitrogen and phosphorus, nitrogen and potassium, nitrogen, phosphorus and potassium six treatment. Dry manure, dry oil and phosphorus and potassium mixed cover for the fat; pig manure 1000 kg for seed fertilizer leaching in the planting ditch, 1000 kg for tillering fertilizer, 1000 kg for jointing fertilizer. Ammonium bicarbonate to two-thirds for the base fertilizer, one-third of the tillering fertilizer, with pig manure in urine. Base fertilizer application, first open 2-3 inches deep fertilization ditch, and then according to the provisions of ammonium bicarbonate ditch set