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机构地区:[1]陕西省农业科学院,杨陵712100 [2]中国农业科学院,北京100083
出 处:《生态农业研究》1998年第4期50-53,共4页Chinese Journal of Eco-agriculture
基 金:"九五"国家科技攻关项目
摘 要:在不同生态类型区地膜覆盖小麦必须配套栽培技术:最适推广地区首先为易遭受低温危害的冷凉山区和下湿地区;灌区推广可起到节水保水作用,但适宜播期应相应后移7~10d;晚茬麦地膜覆盖有促进晚茬赶早茬的增产作用;干旱地区推广必须以休闲期残茬覆盖增加底墒为前提;半干旱丘陵沟壑区实施地膜栽培地与集水补灌措施相配套;半湿润偏旱区平地地膜覆盖要与田间垄沟微区集水技术相配套;注意覆盖前的化学除草剂使用、施肥技术、机械作业以及应采取有效的措施解决“白色污染农田”等问题。The plastic film-covered wheat cultivation should take an appropriate supporting techniques. First,this set of the supporting techniques should be laid in areas that are easily subject to low temperature damage. Second,the extension in irrigation regions could play a water-saving and water conservational rule,but the suitable date of seeding should be delayed 7-10d. The plastic film-covered wheat has an obvious yield increase. Third,the plastic film-covered wheat cultivation in the semi-arid guilly region must be allocated with water-assemble irrigation and field water-assemble planting techniques. Fourth,Chemical herbside and fertiliz-er appliance,as well as machinery work must be paid attention to.Fifth,the plastic film-cov-ered wheat cultivation must be combined with effective control of the “white film pollution”.
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