Effects of different ratio of controlled release fertilizers on growth and yield of rice plants

doi:10.14088/j.cnki.issn0439-8114.2019.15.005

Abstract

Abstract: The experiment was conducted in Zengji town, Shayang county, Jingmen city, Hubei province, to compare the effects of different controlled-release time and fertilization methods on rice （Oryza sative L.） plant growth and yield. The results showed that controlled-release fertilizer could release nutrients slowly and keep pace with the growth of rice, and could meet the demand of high and stable yield of rice. The plant height, panicle length, 1 000-grain weight of controlled-release fertilizer treatment area were not significantly different from those of special fertilizer area and conventional fertilizer area, while the application of controlled-release fertilizer could significantly increase the effective panicle and the number of grains per panicle of rice. Controlled release fertilizer CRU1 increased yield by 3 135.0 kg/hm² and 43.5% compared with no fertilization control, and 1 800 kg/hm² and 21.1% compared with conventional fertilization control.

Key words: controlled release fertilizer, rice（Oryza sative L.）, yield, economic benefits

CLC Number:

S511

CHEN Ping, WANG Su-mei, ZHANG Ping, LI Li, WU De-chun, YANG Yi-xiong. Effects of different ratio of controlled release fertilizers on growth and yield of rice plants[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(15): 22-25.

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