华南农业大学学报2018，Vol.39Issue(1)：47-52,6.
不同耕作和播种模式下稻茬麦种子区微气候特征及出苗效应
Micro-climate characteristics and seedling qualities in seed-zone of post-paddy wheat field under different tillage and seeding modes
摘要
Abstract
[Objective]To evaluate the regional applicability of different tillage and seeding modes, provide a theoritical basis for cultivating in rice-wheat rotation area, optimizing sowing technique and designing related precision seeders, and guarantee high quality and yield of post-paddy wheat.[Method]A seed-zone micro-climate tester was applied to continuously monitor the micro-climate conditions, seed germination and seedling establishment under three seeding modes, including no-till mulching (NT1), no-till drill (NT2) and rotary-tilling broadcasting (CK).[Result]The field experiment showed that the seed-zone micro-climates under three seeding modes varied significantly. Seed-zone micro-climate under NT1 mode remained relatively stable. Large soil clods formed under CK mode, and led to a large change of micro-climate in seed-zone and made it difficult to conserve soil moisture. NT2 created the most stable seed-zone micro-climate, providing the most suitable temperature and humidity for seed germination. The germination rates under NT1, NT2 and CK modes were 58.39％, 71.81％ and 61.80％ respectively.[Conclusion]Different tillage and seeding modes significantly influence seed-zone micro-climate, seed germination and seedling establishment. The proposed seed-zone micro-climate tester is suitable for quickly and accurately evaluating the regional applicability of tillage and seeding modes for past-paddy wheat. Excellent tillage procedures, good seedbed environment and large contact area between seed and soil are the key factors of wheat growth.关键词
稻茬麦/播种模式/种子区/微气候/种子萌发/立苗Key words
post-paddy wheat/seeding mode/seed-zone/micro-climate/seed germination/seedling establishment分类
农业科技引用本文复制引用
李伟,丁启朔,何瑞银,李海康,芮超杰..不同耕作和播种模式下稻茬麦种子区微气候特征及出苗效应[J].华南农业大学学报,2018,39(1):47-52,6.基金项目
国家重点研发计划(2016YFD0300900) （2016YFD0300900）
江苏省农机基金(201-051028) （201-051028）
