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1982年对我县谷子主栽品种齐头白亩产八百斤的施肥和密度指标进行了初步探讨。一、试验方法试验设在朝阳县农科所。试验前对0～20厘米土壤耕层进行了养分测定,确定施农肥化肥水平。采用四因素三水平的正交试验设计方法,小区面积133平方米,六行区,各处理如表1。二、试验结果与分析试验结果如表2。1982年我县全年降水量为259.6毫米,全生育期都处于严重干旱状态,在拔节孕穗期灌水二次。对各因素的增产性能分析如下:1.农肥:亩施6000斤的3个处理,平均亩产为688.3斤,8000斤的3个处理,平均亩产700斤,亩施10000斤的3个处理,平均亩产575斤,以亩施8000斤农肥最好。2.氮素化肥:亩施硫铵30斤的3个处理,平均亩产646.7斤,亩施50斤的3个处理,平均亩产738.3斤,亩施70斤的3个处
In 1982, we conducted a preliminary study on the fertilization and density index of eight kilos per mu of main cultivated varieties of millet in our county. First, the test method The experiment is located in Chaoyang County Agricultural Institute. Nutrients of 0-20 cm soil tillage were measured before the experiment to determine the level of fertilizer application. Using four factors and three levels of orthogonal test design method, the plot area of 133 square meters, six lines, the treatment shown in Table 1. Second, the test results and analysis The test results are shown in Table 2. In 1982 my county annual precipitation was 259.6 mm, the whole growth period are in a serious drought state, irrigation in the second jointing booting stage. The analysis of the yield increase of each factor is as follows: 1. Farming fertilizer: 3 treatments of 6,000 kg per mu, with an average of 688.3 kg per mu, 3 treatments of 8,000 kg, an average of 700 kg per mu and 3 kg of mu , The average yield of 575 pounds per mu to 8000 kg fertilizer best. 2. Nitrogen fertilizer: three acres of ammonium sulfate 30 pounds of treatment, the average yield of 646.7 kg, 50 kg of Mushi three treatments, the average yield of 738.3 kg, 70 kg of 3 acres of facilities