Effects of different fertilizer reduction models on stem lodging resistance and yield of wheat after rice

doi:10.14088/j.cnki.issn0439-8114.2022.10.002

Abstract

Abstract: This paper used Zhengmai 9023, the main wheat variety planted in Zhongxiang city, Hubei Province,as the test material, three treatments were set up, which were conventional fertilization control（CK）, 20% chemical fertilizer reduction + organic fertilizer + synergist （M1） and 20% chemical fertilizer reduction （M2）. The effects of different chemical fertilizer reduction patterns on lodging resistance and yield of wheat after rice were studied. The results showed that compared with CK, the number of grains per panicle, theoretical yield, thousand-grain weight and basal node 2 and 3 stem thickness of wheat treated with M1 and M2 increased significantly.The mechanical strength of the second and third basal nodes treated with M1 and M2 enhanced with the increase of the stem thickness; the actual yield of M1 and M2 increased by 51.24% and 66.62% respectively, and the theoretical yield increased by 42.70% and 43.30%, respectively. The results showed that M1 and M2 treatments could be used as fertilization models for lodging resistance, high yield and stable yield of wheat in Jianghan Plain, Hubei Province. This paper provided a theoretical basis for the application and promotion of fertilizer reduction and efficiency enhancement techniques for wheat after rice in Jianghan Plain.

Key words: wheat, fertilizer reduction, lodging resistance, yield

CLC Number:

S512.1

ZHOU Jian-xiong, LIU Wei, ZOU Juan, ZHANG Chun-Hua, GUO Wei-hong, WU Li-ju, ZHANG Sui-cheng, XIONG You-sheng, YANG Li-jun. Effects of different fertilizer reduction models on stem lodging resistance and yield of wheat after rice[J]. HUBEI AGRICULTURAL SCIENCES, 2022, 61(10): 10-14.

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