Application effects of new types of fertilizer under rice-rape rotation system

doi:10.14088/j.cnki.issn0439-8114.2023.03.013

Abstract

Abstract: In order to explore the efficient application technology of fertilizers in the rotation cycle, the effects of different fertilizer application on crop yield and nutrient use efficiency under the rice（Oryza sativa L.）-rape（Brassica campestris L.） rotation system were studied by setting up 6 treatments including no fertilization （T1）, conventional fertilization （T2）, slow-release fertilizer （T3）, stabilized fertilizer （T4）, BB fertilizer （T5） and bio-organic fertilizer on the basis of T2 （T6） through field positioning experiment. The results showed that compared with the conventional fertilizer treatment, the application of slow-controlled release fertilizer and the application of organic fertilizer on the basis of conventional fertilizer could increase the yield of rice, rape and annual yield, and some rotation years reached a significant level （P<0.05）. Different fertilizer treatments could improve the absorption and the agronomic utilization efficiency of nitrogen, phosphorus and potassium of rice, rape and annual crops in the rice-rape rotation system, among which T6 was the best. The absorption and the agronomic utilization efficiency of nitrogen, phosphorus and potassium in all years under T6 treatment were significantly different from those of conventional fertilizer treatment （P<0.05）. The effect of T3 treatment was followed, except for the absorption of phosphorus in rape season, the difference of the absorption and the agronomic utilization efficiency of nitrogen, phosphorus and potassium in other years between slow-release fertilizer and conventional fertilizer was significant （P<0.05）. In general, the effect of the application of slow-release fertilizer and bio-organic fertilizer under the rice-rape rotation system in Hubei Province was good, but the effect of applying BB fertilizer and stable fertilizer was slightly worse.

Key words: new type of fertilizer, rice（Oryza sativa L.）, rapeseed（Brassica campestris L.）, yield, nutrient absorption, nutrient availability

CLC Number:

S143

XIONG You-sheng, XIONG Han-feng, XIE Yuan-yuan, FAN Hong-xia, XU Xiao-yu, LIU YU, ZHOU Jian-xiong, LIU Wei, WANG Shi-qiu. Application effects of new types of fertilizer under rice-rape rotation system[J]. HUBEI AGRICULTURAL SCIENCES, 2023, 62(3): 69-74.

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