三亚市水稻“3414”肥效试验初报

Preliminary Report on Rice “3414” Fertilizer Effect Experiment in Sanya

采用氮、磷、钾3因素4水平最优回归设计,在田间探讨土壤中氮、磷、钾对水稻产量及肥效的影响。结果表明,海棠湾龙楼田洋水稻生长发育所需氮、磷、钾三要素中氮肥对水稻产量的作用大于磷肥和钾肥。通过田间试验结果,建立本地区水稻肥料效应函数,获得土壤最佳经济产量为550.83 kg/667m2。其氮、磷(P2O5)、钾(K2O)肥最佳施用量依次为:6.9、1.19、0 kg/667m2。

The field experiment in the effect of different of N, P, K on nutrition of rice grown in soil was carried out in Longlou of Haitangwang with the best multivariate regression design of three factors of four levels. The results show that the experiment indicated that nitrogenous fertilizer was the most remarkable than the phosphorus and potassium fertilizer in the three factors of impacting the rice growth. With the field test date, we established the fertilizer effect function of local paddy rice, analyzed and got this conclusion： the best economic output was 550.83 kg/667 m2; the best fertilization of nitrogen, phosphorus and potassium was N 6.9 kg/667 m2, P205 1.19 kg/667 m2, K20 0 kg/667 m2.