中国稻米Issue(1)：52-55,59,5.DOI:10.3969/j.issn.1006-8082.2015.01.012
机插稻高产栽培关键技术的适宜值研究
Research on the Key High-yielding Cultivation Techniques of Machine-transplanted Rice
李伟海 1赖清云 1金军1
作者信息
- 1. 常州市农业技术推广中心，江苏常州213001
- 折叠
摘要
Abstract
Taking the 2012 multi-point data from rice growth monitoring fields in Changzhou city as sample, the effects of planting pattern, planting density, sowing and transplanting date, application of fertilizer on the machine-transplanted rice were analyzed and summarized. The results showed that machine-transplanted rice yield is higher than direct-seeding rice, the main feature is the ears decreasing but the grain number increasing. The optimum planting density of machine-transplanted rice is 1.8×104 points per 667 m2, the optimum transplanted seedling age is 15~20 days, the optimum proportion between the basal-tiller nitrogen and earing nitrogen is 6∶4, the optimum proportion between the basal nitrogen and tiller nitrogen is 3∶7, the optimunm period of the tiller nitrogen is the sec-ond and third leaf age after transplanted. Increasing the accumulation of biological-yield between heading stage and maturity stage is the key way to increase the yield of machine-transplanted rice.关键词
机插稻/高产栽培技术Key words
machine-transplanted rice/high-yielding cultivation techniques分类
农业科技引用本文复制引用
李伟海,赖清云,金军..机插稻高产栽培关键技术的适宜值研究[J].中国稻米,2015,(1):52-55,59,5.
