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首页> 外文期刊>Research Journal of Agronomy >Analysis of Growth of Intercrop Species in a Maize (Zea mays L.)/Cowpea (Vigna unguiculata L. Walp) Intercropping System as Influenced by Crop Arrangement and Proportion in Semi-Arid Nigeria
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Analysis of Growth of Intercrop Species in a Maize (Zea mays L.)/Cowpea (Vigna unguiculata L. Walp) Intercropping System as Influenced by Crop Arrangement and Proportion in Semi-Arid Nigeria

机译：尼日利亚半干旱地区玉米/间作系统中间作种的生长受作物安排和比例的影响

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In order to determine how the growth indices of intercrop species in an intercropping system are influenced by certain factors, field trials were conducted at Institute for Agriculture Research (IAR) farm at Samaru, Zaria during the wet seasons of 2004-2006. The treatments tested consisted of maize and cowpea intercrops with 2 forms of crop arrangement (intra- and inter-row), 4 different crop proportions (1C:1M, 3C:1M, 1C:3M and 2C:2M Cowpea: Maize) and 2 row arrangements (single- and paired-row) in factorial combinations. These treatments were arranged in a randomized complete block design with 4 replications. The crop varieties used were: maize-TZPBSR and cowpea-SAMPEA-6. Crop arrangement significantly affected the rate of growth of the 2 component crops. The Relative Growth Rate (RGR) and Crop Growth Rate (CGR) measured at 6-8 and 8-10 Weeks After Sowing (WAS) were higher under the inter-row crop arrangement in maize by 23 and 22.6%, respectively on the average relative to those under the intra-row crop arrangement. The 3:1 and 2:2 (Cowpea: Maize) crop proportions had higher RGR and CGR values. The 3:1 (cowpea: maize) crop proportion in the single row arrangement produced higher growth rates of cowpea than under any of the other arrangements. In relation to the yield parameters which were measured later, the rate of growth in relation to the productivity of maize/cowpea intercropping system could be determined by using the indices of Relative Growth Rate (RGR) and Crop Growth Rate (CGR) particularly at the later stages of growth of the 2 crops. Indices of crop growth were generally higher for the components when they were grown under the single- and inter-row arrangements.
机译：为了确定间作系统中间作物种的生长指数如何受到某些因素的影响，在2004-2006年的雨季期间，在扎里亚州萨马鲁的农业研究所（IAR）农场进行了田间试验。所测试的处理方法包括玉米和cow豆间作，其中两种作物排列方式（行内和行间），4种不同的作物比例（1C：1M，3C：1M，1C：3M和2C：2M pea豆：玉米）和2行排列（单行和成对行）的阶乘组合。这些治疗以随机完整区组设计排列，重复4次。所使用的作物品种为：玉米-TZPBSR和and豆-SAMPEA-6。作物种植方式显着影响了两种成分的作物的生长速度。在玉米的行间种植安排下，播种后6-8周和8-10周的相对生长率（RGR）和作物生长率（CGR）平均分别高出23％和22.6％。相对于行内作物安排下的那些。 3：1和2：2（小母牛：玉米）的作物比例具有较高的RGR和CGR值。单行排列的3：1（co豆：玉米）作物比例产生的cow豆生长速率高于其他任何排列。关于随后测量的产量参数，可以通过使用相对生长率（RGR）和作物生长率（CGR）的指标来确定相对于玉米//豆间作系统的生产率的增长率，特别是在两种农作物的生长后期。在单行和行间安排下种植时，成分的作物生长指数通常较高。

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