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1983年我们在太原市郊区和清徐县试验冬小麦叶面喷施磷酸二铵的效果,简报于下。一、试验方法与结果本试验为四个处理。处理Ⅰ——每亩喷磷酸二铵3两,处理Ⅱ——每亩喷磷酸二铵4两,处理Ⅲ——每亩喷磷酸二氢钾3两;处理Ⅳ——对照(喷水)。喷肥时间在5月中、下旬,小麦处于抽穗至扬花期。小区面积1分地,重复三次。试验分别安排在清徐和南、北郊区的8个点上,数据比较完整的有6个点。从6个点的试验结果来看,其中5个点均比对照增产,南马点只有处理Ⅱ增产,其余两个处理持平。6个点平均折合亩产,处理Ⅰ比对照亩增产30.5斤,增产率为4.5%;处理Ⅱ增产47.3斤,增产率为7.0%;处理Ⅲ增产34.8斤,增产率为5.1%(见表1).试
In 1983, we tested the effect of diammonium phosphate sprayed on the foliage of winter wheat in the suburbs of Taiyuan City and Qingxu County. First, the test methods and results The test for the four treatment. Treatment Ⅰ - 3 per acre spray diammonium phosphate 2, treatment Ⅱ - 4 per acre spray diammonium phosphate treatment Ⅲ - 3 per mu Phosphate 2; treatment Ⅳ - control (water). Fertilization time in mid-May, late, wheat is heading to flowering. Residential area 1 minute, repeated three times. Experiments were arranged in Qingxu and South and North suburbs of the 8 points, the data is more complete with 6 points. According to the test results of 6 spots, 5 of them increased yield compared with the control, and only increased the yield of South Horse Point Ⅱ and the remaining two were the same. 6 points average yield per mu, treatment Ⅰ than the control mu yield 30.5 kg, the yield was 4.5%; treatment Ⅱ yield 47.3 kg, the yield was 7.0%; Ⅲ yield 34.8 kg, the yield was 5.1% (see Table 1 ).test