Effect of tillage methods on grain filling characteristics and yield of maize in semi-arid area of Songnen plain

doi:10.14088/j.cnki.issn0439-8114.2021.13.005

Abstract

Abstract: Tillage method is the main factor limiting the increase of maize （Zea mays L.） yield in semi-arid areas of Songnen plain. To explore a kind of maize high-yield cultivation method from the angle of corn grain filling for the semi-arid area of Songnen plain, taking Xianyu 335 as the test material, six kinds of tillage methods, such as deep ploughing and ridge tillage in autumn, deep ploughing and flat tillage in autumn, rotary and ridge tillage in autumn, rotary and flat tillage in autumn, rotary and ridge tillage in spring, rotary and flat tillage in spring, were set up to study the effect of tillage on maize grain grouting characteristics and yield. The results showed that the growth rate was positively correlated with the yield of maize （P<0.01） and the grain weight of maize （P<0.05）. Compared with other treatments, deep ploughing and flat tillage in autumn can increase the photosynthetic rate, the grain dry weight of maize during the pulping period, the peak of maize irrigation rate, the biomass when the maize irrigation rate was the largest, the grain weight of maize and the yield of maize. The yield of maize was the highest at 11 141.93 kg/hm² under the treatment of deep ploughing and flat tillage in autumn. Therefore, the yield of maize in semi-arid area of Songnen plain can be improved by adopting autumn-deep flattening treatment.

Key words: tillage method, maize（Zea mays L.）, grain filling characteristics, yield

CLC Number:

S513
S341

ZHANG Ji-wei, WANG YU-feng, ZHANG Yi-fei, LI Qing, YANG Ke-jun, TANG Zi-chun. Effect of tillage methods on grain filling characteristics and yield of maize in semi-arid area of Songnen plain[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(13): 26-30.

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