Abstract:

To study the effect of banded composite planting pattern on maize material production and distribution in Ningxia irrigation area. This study explored the impact of the soybean-corn strip compound planting model located in the Ningxia irrigated area on the production and distribution of corn matter. Four kinds of strip composite planting patterns demonstrated and planted in Ningxia were selected for the experiment, soybean-corn S3:M2, S4:M2, S3:M4, S4:M4, with the control being monoculture corn (M). The maize test varieties was ‘Xianyu 1225’, the soybean varieties for test was ‘Zhonghuang 30’, the maize planting density was 82500 plants/hm2, and the soybean planting density was 150000 plants/hm2. The test results showed that compared with monoculture corn, the dry matter of corn planted in strip composite planting at maturity was reduced by 7.9%-30.4% per plant, with the smallest effect of S3:M4 and the largest effect of S4:M2; the total dry matter at maturity was reduced by 4.3%-42.7%. The dry matter allocation of female ears at maturity was reduced by 0.5% to 40.5%, with S3:M4 having the smallest effect and S4:M2 having the largest effect. Corn yield was reduced by 25.1% to 41.4%, the number of ears harvested decreased by 4.2% to 14.9%, thousand kernel weights decreased by 0.5% to 3.6%, and the number of grains per ear decreased by 5.2% to 10.8%. Soybean-corn strip composite planting pattern had less dry matter in the female ears than corn alone, and the accumulation of dry matter in the female ears at the spatula stage began to decrease, and the yield was reduced.

Key words: soybean corn, strip compound planting, matter production, material distribution