作物研究2017，Vol.31Issue(4)：408-414,7.DOI:10.16848/j.cnki.issn.1001-5280.2017.04.14
不同栽培措施对直播早熟油菜机械收获相关性状的影响
Effects of Different Cultivation Measures on Mechanical Harvest Charaters of Direct Seeded Rapeseed
摘要
Abstract
Mechanical production of rapeseed is one of the main ways of high efficient cultivation of rapeseed.In order to find the best cultivation model that suitable for the mechanical harvest of direct seeded early maturing rapeseed,the special early maturing rapeseed " 1358" was used as the material in this experiment.Three sowing times,three planting density and two fertilization levels were designed to study the cultivation measures of mechanical harvest of direct early-maturing rapeseed.Results showed that late sowing could shorten the growth period of rapeseed,but the effect of density and fertilizer treatment on the growth period was not affected.Among the treatments,the plant height decreased as the delay of sowing date and the increase of density.The number and the position of the primary branch were significantly correlated with the sowing date and density,but the fertilizer had no significant effect.The rape branch positions of all the treatments were higher than 68 cm,which was suitable for the mechanical harvesting of rapeseed.In addition,the earlier the sowing of early maturing rapeseed,the higher the yield.In this study,at the same amount of fertilizer,the rape yield when sowed in October 20th decreased with the increase of density.The rape yield sowed at October 30th and in November 9th,increased with the increase of density.The best cultivation pattern,which suitable for agricultural machinery and agronomic best combination of cultivation measures,was prooosed for the early maturity rapeseed,its sowing date is in late October to early November,sowing density is 90 000 plants/hm2,and fertilization should be compound fertilizer (available component 48％,N,P,K content is 16) 900 kg.关键词
早熟油菜/机械化收获/播种期/密度/施肥Key words
early maturity rapeseed/mechanization harvest/sowing date/density/fertilizer分类
农业科技引用本文复制引用
徐江林,王强,李祯,彭烨..不同栽培措施对直播早熟油菜机械收获相关性状的影响[J].作物研究,2017,31(4):408-414,7.基金项目
国家科技支撑计划(2014BAD11B03). （2014BAD11B03）
