不同氮肥处理对水稻生理效应及产量的影响

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Journal of Northern Agriculture ›› 2018, Vol. 46 ›› Issue (2): 37-37.

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Effects of different nitrogen fertilizer treatments on physiological effects and yield of rice

YANG Hechuan1, CHEN Liugen2, QIN Yuying1,LIANG Changdong1,LIU Hongjiang2, Ren Likai1 （1.Lianyungang Academy of Agricultural Sciences, Lianyungang 222000,China; 2.Recycling Agriculture Research Center, Jiangsu Academy of Agriculture Sciences, Nangjing 210014, China ）

Online:2018-04-20 Published:2018-04-20

Abstract

Abstract: The effect of 4 different nitrogen treatments on the physiological effect and yield of rice was studied with japonica rice, Lian Jing No.7 as the test material. The results showed that photosynthetic indexes of C, D,were higher than that of treatment B and treatment A （control）;treatment B, treatment C, treatment D and compared with treatment A （control）; yield increased by 38.78%, 53.63% and 54.15%, lodging and mechanical strength with 109.49%, 132.61% and 86.55% as much as treatment A,treatment C with strongest lodging resistance and a high yield; considering yield, lodging resistance and production costs and other factors,C（N 300 kg/hm^2＋ P 67 kg/hm^2＋ K 135 kg/hm^2） is optimal treatment.

CLC Number:

S511

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Effects of different nitrogen fertilizer treatments on physiological effects and yield of rice

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