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Effect of Maize Sowing Time and Density on the Agronomic Characters and Yield of Soybean in Relay-planting System of Maize and Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2009年03期
Page:
439-444
Research Field:
Publishing date:

Info

Title:
Effect of Maize Sowing Time and Density on the Agronomic Characters and Yield of Soybean in Relay-planting System of Maize and Soybean
Author(s):
YONG Tai-wen1; YANG Wen-yu1; XIANG Da-bing1; ZHANG Ya-fei1; XU Li-hua2
1 College of Agronomy，Sichuan Agricultural University，Ya’an 625014；
2 Zigong General Popularization Centre of Agricultural Technique，Zigong 643000,Sichuan,China
Keywords:
Maize; Soybean; Relay-sowing; Yield; Agronomic character
PACS:
S565.1;S344.3
DOI:
10.11861/j.issn.1000-9841.2009.03.0439
Abstract:
The relay-sowing system of “wheat/maize/soybean”is a new cultivation technique in hilly area of southwest China.Field experiments were conducted to determine the optimal sowing time and sowing density that benefit for both heigh yield of maize and soybean under relay-sowing system of maize and soybean.Split plot design were adopted，with maize sowing time（from March 16 to April 15）as main plots，sowing density（from 3.6×104 plantha-1to 6.0×104plantha-1）as sub-plots.Soybean were planted on June 10 under the density of 13.78.plantha-1.The agronomic traits of plant height，stem diameter，height of lowest pod and branch number，and yield components of soybean were determined after harvest.The results indicated that it was benefit to improve the yield of maize with properly late sowing（from March 26 to April 5）and high sowing density（from 4.8×104plantha-1to 6×104plantha-1）.With early sowing（March 6）and low sowing density(3.6×104plantha-1）of maize，plant height of soybean reduced，stem diameter and branches increased，height of lowest pod shortened，pods and seeds in the height between 20 cm and 60 cm of branch increased，and pods and seeds over 60 cm of main stem also increased.In comparison with late sowing（April 15）and high sowing density（6×104plantha-1)，the yield of soybean under early sowing and low sowing density of maize increased by 40.42% and 35.79%，respectively.It was beneficial to improve the total yield and output value in relay-sowing system of maize and soybean with properly early sowing（from March 26 to April 5）and high sowing density（4.8×104plantha-1).

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Last Update: 2014-09-25