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水稻球肥深施后的增产作用是毫无疑问的。据有关资料报道,我省碳铵球肥深施比粉肥表施的增产8—19％,腐铵球肥比粉肥表施增产5—37.1％,这是因为深层集中施肥,提高了氮素利用率,但由于深施的器械未得到很好的解决,所以这一科研成果在我省实际生产上尚未得到大面积运用。针对这一问题,1977年我们进行了水稻球肥深施方法的试验。在试验中,本着施肥方法要简单、有效、对当前生产具有现实意义的原则,采用泡水犁田后,均匀撤入球肥耙田时深埋(以下简称耙前深
There is no doubt that the yield-increasing effect of rice ball fertilizer after deep application is undoubted. According to relevant data, the yield of ammonium bicarbonate fertilizer in our province is 8-19% higher than that of powder fertilizer, and that of humus ammonium fertilizer is 5-37.1% higher than that of powder fertilizer, which is because of deep concentration of fertilization and increase of nitrogen However, due to the deep application of the device has not been well resolved, so this scientific research has not yet been widely used in the actual production in our province. In response to this problem, in 1977 we conducted a test of the method of deep application of rice ball fertilizer. In the experiment, in accordance with the principle of fertilization method is simple and effective, the current production of practical significance, after using puddled water puddles, uniform evacuation into the deep-buried fertilizer rake (hereinafter referred to as deep before rake