Spacing between Soybean Rows

作     者：Luiz Claudio Garcia Ivo Frare Thiago Inagaki Pedro Henrique Weirich Neto Marcos Martins Maghnom Henrique Melo Leandro Nadolny Marcos Kruppa Rogenski Newton Seifert Filho Ezequiel Barbosa de Oliveira 

作者机构：Department of Soil Science and Agricultural Engineering State University of Ponta Grossa Ponta Grossa Brazil 

出 版 物：《American Journal of Plant Sciences》 (美国植物学期刊（英文）)

年 卷 期：2018年第9卷第4期

页      面：711-721页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：Productivity Components Glycine max No-Till System 

摘      要：The soybean crop has great economical importance in Brazil and in the world. In order to make the crop production profitable, several factors must be considered. The objective of this study was to evaluate the impact of spacing between soybean crop rows (Glycine max). The experiment was installed in the Mutuca farm (Arapoti—PR, southern Brazil), in the crop seasons of 2012/2013 (four seeding seasons) and 2013/2014 (two seeding seasons), in a completely randomized blocks design. We used four treatments and six replicates. The treatments were the spacing between rows as follow: 0.25, 0.50, 0.75 and 1.00 m. The variables evaluated were: initial and final plant population, plant height, number of internodes, viable internodes, pods per plant, grains per pod, mass of thousand grains and crop productivity. We concluded that the reduction of the spacing between rows significantly increased, in most part of the crop seasons, the number of pods per plants and the crop productivity.