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复合菌肥,即以多种有益的土壤微生物按一定配比制成的菌肥。复合茵肥除具有一般菌肥原料广、成本低、易于土法生产等优点外,比一般菌肥效果好,增产幅度大。一、氮磷复合菌肥的增产作用我们在山东省诸城县6个公社、4种作物、10块地上进行了固氮菌、磷细菌复合菌肥试验。试验中,磷细菌加固氮菌肥按1:1、1:4、1:5、1:10、1:20的比例;磷细菌加固氮菌加钾细菌肥按1:20:1的比例。结果表明,氮磷复合菌肥增产11.4—62.2%,平均增产28.4%,比磷细菌肥和固氮菌肥单施增产率分别高7.7%和11.1%。
Compound fertilizer, that is, with a variety of beneficial soil microorganisms made according to a certain ratio of fertilizer. In addition to the compound fertilizer with a wide range of general fertilizer raw materials, low cost, easy production of soil and other advantages, the effect is better than the general bacterial fertilizer, large yield increase. First, the nitrogen and phosphorus fertilizer compound fertilizer production effect We Zhucheng County in Shandong Province 6 communes, 4 kinds of crops, 10 on the ground azotobacter, phosphorus bacteria composite fertilizer test. In the experiment, the ratio of nitrogen-fixing bacterium to phosphorus-bacteria-reinforcing nitrogenous bacteria fertilizer was 1: 1, 1: 4, 1: 5, 1:10 and 1:20; The results showed that the yield of N and P composite bacterial fertilizer increased by 11.4-62.2% and the average yield increased by 28.4%, which was 7.7% and 11.1% higher than that of single and single nitrogen-fixing bacterial fertilizer respectively.