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对早稻生产进行常规施肥与测土配方施肥试验,以探讨测土配方施肥对早稻肥料利用率的影响。结果表明:早稻采用配方施肥比常规施肥平均增产26.95 kg/667m2,增产率5.7%;节约肥料1.3 kg/667m2,节本增收67.9元/667m2;氮、磷、钾肥的平均利用率分别比常规施肥的提高了5.6、7.5、0.8个百分点。这说明在相同的种植管理条件下,配方施肥增产增收效果明显,肥料利用率明显提高。
The conventional fertilization and soil testing and fertilization experiments were conducted on the early rice production to explore the effect of soil testing and formula fertilization on the fertilizer utilization of early rice. The results showed that the average yield of nitrogen, phosphorus and potassium fertilizers were increased by 26.95 kg / 667m2 and yield increase by 5.7% compared with the conventional fertilization. The fertilizer saving was 1.3 kg / 667m2, The increase of 5.6,7.5,0.8 percentage points. This shows that under the same planting and management conditions, the effect of formula fertilization and yield increase significantly, fertilizer utilization rate increased significantly.