有机复合肥稻田肥效试验初报

Effect of Organic Complicated Fertilizer Test in Rice

在贵州省内不同的土壤肥力条件下，用４种肥料，３种不同用量，共１２个处理，作稻田肥效试验。施用结果表明：试验肥料的肥效为尿素（Ａ４）＞有机复合肥（Ａ２）＞无机复合肥（Ａ３）＞有机复合肥（Ａ１），复合肥与尿素差异大，而有机复合肥与无机复合肥之间差异小。有机复合肥各处理，净产值均比尿素（ＣＫ２）低１１３．９～１６７元，而有机复合肥除个别用量与ＣＫ１同用量相当外，其余各处理均比无机复合肥（ＣＫ１）低３５．３～６４．５元。有机复合肥对水稻主要经济性状和米质无明显的影响，但可比尿素ＣＫ２提早水稻生育期４～６ｄ，可以一定程度提高土壤中的水解Ｎ和有效Ｋ等。

The fertilizer was once applied completely into paddy field as base fertilizer. 12 treatments were combined with 4 kinds of fertilizers and 3 usage norm in this test. The result showed that effect of fertilizer was A4>A2>A3>A1. There was a great deal of difference between organic complicated fertilizer and CK2, but there was little difference between organic complicated fertilizer and CK1. The net worth of organic complicated fertilizer is less 113.9167 yuan/667m2 than CK2 and less 35.364.5 yuan/667m2 than CK1. The organic complicated fertilizer showed no visible effect on the main economic characters and the quality in rice. But the growth duration of rice was earlier 46 days than CK2.