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为了积极发展细菌肥料,自力更生开辟肥源,1973年春.在我大队科学试验田上(壤土)进行了自生固氮菌肥(系中国农科院土肥所供给)应用效果的试验。试验共设每亩施固氮菌肥3斤、5斤、10斤、20斤、50斤及对照等6个处理项目,每个处理三次重复,分为18个小区,共占地1.8亩,小区排列方式为随机排列。
In order to actively develop the bacterial fertilizer, self-reliance and development of fertilizer, the spring of 1973. In my brigade scientific experiment field (loam) carried out autotrophic Azotobacter (Department of Chinese Academy of Agricultural Sciences soil fertilizers supply) application effect test. A total of three sets of experiments were conducted to test 6 treatments of nitrogen-fixing bacterial fertilizer per acre, including 5 kg, 10 kg, 20 kg, 50 kg and control. Each treatment was repeated three times and divided into 18 sub-districts, covering a total area of 1.8 mu Arrangement for the random arrangement.