Effect of Maize and Soybean Sowing Date Cohesion on Soybean Dry Matter Accumulation and Yield in Intercropping

doi:10.7668/hbnxb.2017.03.015

Abstract

Abstract: To explore the effect of different maize and soybean sowing dates on soybean yield,dry matter accumulation and partitioning ratio,provided reference to increase crops yield in maize-soybean intercropping system.The field experiment was conducted with three maize sowing dates:early seeding(A1:May 15 th),middle seeding(A2:May 30 th),late seeding(A3:June 14 th),and three soybean sowing dates:early seeding(B1:May 30 th),middle seeding(B2:June 14 th),late seeding(B3:June 29 th).In maize middle seeding, the soybean growth rate after blooming was 33.2% significant higher than maize late seeding; dry matter accumulation per plant and pod distribution rate of soybean were 32.4%, 17.9% and 26.3%,23.9%significant higher than maize late seeding in R4, R6; soybean yield was 75.7%significant higher than maize late seeding.Compared with soybean middle seeding under maize middle seeding treatment, the soybean dry matter accumulation per plant and pod distribution rate were 195.4%,58.5% and 33.9%, 26.7%significant higher than soybean late seeding in R4, R6; soybean yield was 128.7%significant higher than soybean late seeding. It turned out that sowing maize and soybean simultaneously significantly improved the growth rate after soybean blooming,increased dry matter accumulation per plant,pod distribution rate and yield in maize-soybean intercropping system.

Key words: Maize-soybean intercropping, Sowing date cohesion, Matter accumulation, Yield

CLC Number:

YANG Yanzhu, DU Qing, CHEN Ping, YANG Wenyu, YONG Taiwen. Effect of Maize and Soybean Sowing Date Cohesion on Soybean Dry Matter Accumulation and Yield in Intercropping[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2017, 32(3): 96-102. doi: 10.7668/hbnxb.2017.03.015.

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