烟后稻平衡施肥试验研究

Balanced Fertilization Techniques for Post-tobacco Rice

通过对永定烟后稻施氮磷钾肥的"3414"试验研究,结果表明,在当地试验条件下,烟后稻最高产量641.6kg/667m2的施肥量为每667m2施用N12.1kg、P2O55.8kg、K2O7.4kg(N∶P2O5∶K2O=1∶0.48∶0.61)。最佳施肥效益1005.0元/667m2的施肥量为每667m2施N9.9kg,P2O57.8kg、K2O7.8kg(N∶P2O5∶K2O=1∶0.78∶0.78)。

Balanced fertilization techniques for post-tobacco rice Yiyou673 with three fertilizers（ N,P,K）, four application levels and fourteen treatments were studied in Yongding of Fujian province. The results showed that under the local test conditions, fertilizer application rate per 667m 2 with the highest yield of 641.6kg/667m 2 for post-tobacco rice was N 12.1kg, P 2 O 5 5.8kg and K 2 O 7.4kg（ N∶P 2 O 5 ∶K 2 O=1∶0.48∶0.61）, but that of the best benefit of 1005.0 yuan/667m 2 was N 9.9 kg,P 2 O 5 7.8 kg and K 2 O 7.8 kg（N∶P 2 O 5 ∶K 2 O=1∶0.78∶0.78）.