江西农业大学学报Issue(6)：947-954,8.DOI:10.13836/j.jjau.2015144
不同机插株距和取秧面积对双季早稻产量的影响
Impact of Machine Transplanting Space and Seedling-taken Size on the Yeild of Double Season Early Rice
摘要
Abstract
The impacts of rice transplanters ’ transplanting settings ( planting space and seedling⁃taken size) on the rice yield were investigated in two varieties of early season rice:hybrid rice variety ( Zhuliangyou 819) and conventional rice variety (Zhongjiazao 17).The results showed that,different transplanting settings resulted in different basic numbers of transplanted seedlings,and the rice yield was significantly correlated with the basic number of transplanted seedlings. The basic numbers of transplated seedlings increased with the de⁃crease of planting space and the increase of seedling⁃taken size. The planting missing rate of transplanters de⁃creased with the increase of seedling taken size.Leaf area index and dry matter accumulation amount were highly related to the basic numbers of transplanted seedlings.The average yield of the rice transplanted with a 11.5 cm planting space was higher than that with a 13.8 cm planting space.In the field under the rice transplanted witha 13.8 cm planting space,the rice yield increased with the increase of seedling⁃taken size,and the seedling⁃taken size of 2.31 cm2 had the highest rice yield:8 174.16 kg/hm2 of Zhuliangyou819 and 7 925.54 kg/hm2 of Zhongjiaozao17. In the field under the rice transplanted with a 11.5 planting space,the rice yield was the high⁃est with the seedling⁃taken size of 1. 83 cm2 , and then declined with the larger seedling⁃taken size. With a 11.5 cm planting spce,the highest rice yields of Zhuliangyou819 and zhongjiaozao17 were 8 492.94 kg/hm2 and 8 000.23 kg/hm2 respectively. Therefore, the preferred machine transplanting settings for double season early rice are 11.5 cm planting space,1.83 cm2 seedling⁃taken size,and the seedling⁃taken size should be in⁃creased to 2.31 cm2 for conventional rice varieties.关键词
双季早稻/机插秧/株距/取秧面积/产量Key words
double season early rice/transplanter/planting space/seedling-taken size/yield分类
农业科技引用本文复制引用
李木英,黄程宽,谭雪明,潘晓华,石庆华..不同机插株距和取秧面积对双季早稻产量的影响[J].江西农业大学学报,2015,(6):947-954,8.基金项目
国家“十二五”科技支撑计划项目（2011BAD16B04）、江西省“555”领军人才项目和农业部超级稻专项 （）
