一、试验方法供试作物及品种:供试作物小麦,品种“墨沙”。土质为沙胶泥,肥力中等,地力基本均匀。试验处理:1.磷酸二氢钾0.5斤+水250斤/亩。2.水250斤/亩(对照)。田间设计:小区面积为0.03亩长方形。对比法排列。重复五次,共十个小区。二、试验经过 1977年10月18日播种小麦,播量20斤/亩。整个生育期施用农肥5000斤/亩,硝酸铵15斤/亩,尿素30斤/亩,普钙75斤/亩,氯化钾8斤/亩。灌水两次。小麦抽穗后,在植株青 First, the test methods for the test crops and varieties: for the test crop wheat, varieties “Mo Sha.” Soil for the sand clay, medium fertility, ground basically uniform. Test treatment: 1. potassium dihydrogen phosphate 0.5 kg + water 250 kg / mu. 2. Water 250 pounds / mu (control). Field design: residential area of ​​0.03 acres of rectangular. Contrast arrangement. Repeat five times, a total of ten communities. Second, the test after October 18, 1977 sowing wheat, sowing 20 kg / mu. Fertilizer application throughout the growing period of 5000 kg / mu, ammonium nitrate 15 kg / mu, urea 30 kg / mu, calcium 75 kg / mu, potassium chloride 8 kg / mu. Irrigation twice. After the heading of wheat, plant green