|Table of Contents|

Effects of Row Ratio and Maize Plant Type on Yield and Benefit of Maize Soybean Intercropping
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《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2019年05期
Page:
726-732
Research Field:
Publishing date:

Info

Title:
Effects of Row Ratio and Maize Plant Type on Yield and Benefit of Maize Soybean Intercropping
Author(s):
TANG Fu-yue; CHEN Wen-jie; WEI Qing-yuan; GOU Xiao-hong; LIANG Jiang; CHEN Yuan
(Cash Crops Research Institute,Guangxi Academy of Agriculturl Sciences/Nanning Comprehensive Station of Nation Soybean Industry Technology,Nangning 530007, China)
Keywords:
Maize soybean intercropping; Row ratio; Plant types; Yield;  Benefit
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2019.05.0726
Abstract:
In order to provide theoretical and technical basis for achieving the goal of sustainable and high yield of “spring maize‖spring soybean/summer soybean”. Two-factor randomized block design was adopted in this research, A factor was different plant-type of two maize varieties, B factor was three different row ratios of maize and soybean, and monoculture soybean (SS) and maize (MM) were used as controls to evaluate maize soybean intercropping system of different row ratios and maize plant types through different quantitative indicators such as land equivalent ratio (LER), intercropping equivalent (IE) and population yield. The results showed that the competitiveness of maize was stronger than that of soybean in different row ratios and maize plant types. The yield of intercropping maize and soybean was significantly lower than that of monoculture, but the total yield of population was significantly higher than that of single cropping. Population LER, yield intercropping equivalent and yield-value intercropping equivalence (IE) were 1.32-1.43, 1.90-2.18 and 1.27-1.36, respectively, in other words, 32%-43% land area should be increased to achieve the same grain yield as intercropping. Yield per unit area and output value increased by 1.90-2.18 and 1.27-1.36 times respectively compared with monocropping. When row ratio was the same, compared with A1, the plant height of two crops and main stem node number of soybean were increased, the number of pods and grains per plant, 100-grain weight and yield were decreased.When maize plant type was the same, the pod height, main stem node number and branch of soybean was B3 > B2 > B1, and yield was B1 > B2 > B3, so spring soybean and semi-compact maize planting with wide and narrow rows was more benefit for soybean production and development. A1B1 treatment had the highest population yield, LER and IE, and solved the problem of summer soybean interplanting with small machinery operation of “spring maize‖spring soybean/summer soybean” system in Guangxi, the social effect, ecological and economic benefits were the best, and this cropping pattern could be popularized in Guangxi.:

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Last Update: 2019-09-20