‘广两优676’作为菜后稻的氮磷钾施肥效应与适宜用量研究

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基金项目:

福建省财政专项——福建省农业科学院科技创新团队建设项目(CXTD-2-1312)

福建省科技重大专项(2013NZ0002-2)

国家863计划项目(2012AA101201)

国家公益性行业农业科研专项(201403002-7)

Fertilizer Response and Optimum Application Rate of NPK for‘Guangliangyou 676'as Post-vegetable Rice

Rice Research Institute,Fujian Academy of Agricultural Sciences/Fuzhou Branch,National Rice Improvement Center of China

摘要: 为研究‘广两优676’超高产水稻作为菜后稻的施肥效应,应用“3414”试验设计方法,在菜田上进行田间试验。结果表明,在碱解氮含量偏低、有效磷钾含量丰富的菜田上,施用氮肥具有显著增产效果,磷钾肥具有一定增产作用。根据建立的三元二次肥效模型,得到试验条件下的经济施肥量为N 103kg·hm-2、P2O541kg·hm-2、K2O 103kg·hm-2,氮磷钾适宜施用比例为1∶0.4∶1。
- 菜后稻 /
- ‘广两优676’ /
- 氮磷钾 /
- 施肥 /
- 产量
Abstract: We carried out the research on the NPK fertilizer response of the super high-yielding rice variety‘Guangliangyou 676'grown on vegetable field with ‘3414'the optimum regression design.The results indicated that N application could significantly increase the yield of rice in the lower alkali-hydrolyzable nitrogen,but rich available phosphorus and potassium in the vegetable field.P,K application could improve it to some degree.According to the imitative results of regression equation,the economic application rates of N,P2O5 and K2O were103kg·hm-2,41kg·hm-2and 103kg·hm-2,respectively.The proper ratio of N∶P2O5∶K2O was 1∶0.4∶1in the vegetable field.
- rice grown on vegetable field /
- ‘Guangliangyou 676' /
- N /
- P and K /
- fertilization