旱地全膜双垄沟播玉米增产效应研究  

Effect of Whole Covering on Double Ridges and Planting in Catchment Furrows on Yield Increase of Dry Land Maize

作　　者：孙学保[1] 杨祁峰 牛俊义[1] 张文斌[1] 牛芬菊 

机构地区：[1]甘肃农业大学农学院,甘肃兰州730070 [2]甘肃省农业技术推广总站,甘肃兰州730020 [3]榆中县农业技术推广中心,甘肃兰州730100

出　　处：《作物杂志》2009年第3期32-36,共5页Crops

基　　金：旱作农业甘农财[2007]13号

摘　　要：旱地玉米不同覆膜方式以及不同时期全膜双垄沟覆膜栽培条件对土壤的温湿度、植株外部形态及产量影响的研究结果表明,全膜覆盖栽培的土壤含水量、地温、叶面积、干物质等指标均高于半膜覆盖栽培,半膜栽培又高于露地栽培;在全膜覆盖下,全膜双垄沟秋覆膜各项指标均高于全膜双垄沟项凌覆膜,而全膜双垄沟顶凌覆膜又高于全膜双垄沟播前覆膜和全膜平铺顶凌覆膜。同时,全膜双垄沟播具有良好的增产效果,尤其全膜双垄沟播秋覆膜的增产效果更加显著,相对于露地、全膜双垄沟顶凌覆膜、全膜双垄沟播前覆膜、全膜平铺顶凌覆膜分别增产313%、9.22%、17.61%、27.40%。The study was conducted with dry land maize to investigate effects of different film-covering modes and whole covering on double ridges and planting in catchment furrows during different periods on soil temperature and moisture, plant agronomic traits and yield. The results showed that the soil moisture content, soil temperature, leaf area and dry matter of maize plants under whole film-covering modes were all higher than other treatments with half film-covering modes higher than open field cultivation. Among of the whole film-covering modes, the soil moisture content, soil temperature, leaf area and dry matter of maize plants under the whole covering on double ridges and planting in catchment furrows in autumn were the highest compared with the whole covering on double ridges and planting in catchment furrows of slush covering, pre-sowing covering and carvel-buih covering, meanwhile the whole covering on double ridges and planting in catchment furrows of slush covering showed better. In addition, the modes of whole covering on double ridges and planting in catchment furrows could increase maize yield, especially, the whole covering on double ridges and planting in catchment furrows in autumn could increase yield significantly compared with the open field cultivation, the whole covering on double ridges and planting in catchment furrows of slush covering, the pre-sowing covering and carrel-built covering with increasing 313 %, 9.22 %, 17.61%, 27.40%, respeetively.

关 键 词：旱地玉米 覆膜方式 覆膜时期 产量 

分 类 号：S513[农业科学—作物学]