摘要： 高麦茬覆盖复播技术，是在机械收获后的高茬麦田，通过人工撒种、旋耕机旋耕等作业环节，达到灭茬、播种、覆盖的目的。这种复播方式既有蓄水保墒、调控地温、培肥改土、抑制杂草等土壤环境效应，又有促进夏作物生长发育、提高产量的生物学效应。与常规耕作复播相比，每公顷增产夏玉米1275kg、夏大豆826.5kg，增产率分别为29.1%和33.1%。

关键词: 高麦茬覆盖, 复播, 夏作物, 效应, 耕作技术

Abstract: Multiple cropping with high wheat stubble mulching is to stub to sow and to cover fields through farming operations such as manual broadcast and rotary tillage etc.in high wheat stubble fields of combine reaping.This kind of multiple cropping has the advantages of soil moisture preservation, adjusting of the field temperature, improvement of soil structure and checking of weed growing.And it also has the biological effects, such as the acceleration of the growing of summer crops and the increase of the crop output.Compared with the traditional multiple cropping, it can increase the maize output by 1275 kg per ha, soyabean by 826.5 per ha.The increase rates are 29.1%and 33.1% perspectively.

Key words: Multiple cropping, High wheat stubble mulching, Summer crops, Effect, Cultivation technique