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本研究的目的是为了取得有关施肥参数,建立吉林省开原地区超级稻施肥模型。应用“3414”设计方案对超级稻进行田间肥效试验,研究不同施肥配方对其产量的影响。结果表明,在一定范围内,氮肥对水稻生长有显著的影响,而磷、钾肥的影响较小。建议开原地区超级稻的氮、磷、钾施用量分别为N240.0kg/hm2、P2O5150.0kg/hm2、K2O150.0kg/hm2,并在做好配方施肥的同时,掌握好施肥时期和比例,氮肥要分期施入,保证超级稻各个生长期所需氮素。
The purpose of this study is to obtain fertilization parameters and establish a fertilization model for super rice in Kaiyuan region of Jilin Province. Applying the “3414” design scheme, field fertilizer experiments were conducted on super rice to study the effects of different fertilization formulas on their yield. The results showed that, within a certain range, nitrogen fertilizer had a significant impact on rice growth, while phosphorus and potassium had little effect. It is suggested that the application rates of N, P and K in super rice should be N240.0kg / hm2, P2O5150.0kg / hm2 and K2O150.0kg / hm2, respectively. In the meantime, Nitrogen to be applied in stages, to ensure that the growth of super-rice required for the growth of nitrogen.