摘要
研究结果表明,春育夏栽棉花最佳移栽期为5月30日～6月5日,最适苗龄40～45天,栽期晚于6月10日,则以50日龄大壮苗为宜。亩产皮棉88kg以上的综合农艺措施决策为:每亩栽植4.234～4.430千株,亩留总果枝4.75～4.92万,施纯氮10.74～11.60kg/亩,p_2O_58.1～8.7kg/亩,喷缩节胺4.40～5.13g/亩。
The results of study showed that key measures for cotton raised seedling in spring and transplanted in summer are the best transplanting date fram May 30 to June 5,40-45 days of the most rational seedling age. while transplanting date is later than June 10, big sound seedling of 50 days is suitable. The comprehensive agronomic measures,based on wihich lint yield is more than 88kg/mu,are plant density 4,234-4430 plants/mu,47500-49200 reserve fruit branches per mu,10. 74-11. 60kg/mu,of the amount of pure N,8. 1-8. 7kg/muof the amount of P2O5,4. 40-5. 13kg/mu of the amount of DPC.
出处
《河南职业技术师范学院学报》
1993年第3期1-5,共5页
Journal of Henan Vocation-Technical Teachers College
关键词
棉花
苗龄
移栽期
栽培
cottin, raised in spring and transplanted in summer, seedling age, trans-planting date,comprehensive agronomic measures
