干旱地区农业研究Issue(2)：50-55,6.DOI:10.16302/j.cnki.1000-7601.2015.02.008
不同覆膜栽培对玉米土壤水分温度及产量的影响
Effects of different plastic mulching practices on soil moisture, soil temperature and yields of maize
摘要
Abstract
To understand the regulatory mechanism of plastic mulching for soil moisture and temperature as well as yields ,soil moisture at 0 ~ 80 cm soil layer and soil temperature at 0 ~ 40 cm soil layer during the whole growth periods were respectively measured by oven drying and geothermometer methods .Plant height ,plant weight ,stem diameter ,ear diameter ,rows per ear ,grains per row ,kernels per spike ,thousand kernel weight and leaf area per plant were randomly measured during the maturation period ,and their economic yield and biological yield were calculated .The results showed that all-film double-furrow sowing could respectively improve 0 .3% ,1 .0% ,1 .6% and 2 .4% more of the soil moisture at 0 ~ 80 cm soil layer ,elevate 0 .3 ℃ ,1 .2 ℃ ,1 .6 ℃ and 2 .2 ℃ higher of soil temperature at 0 ~ 40 cm soil layer , shorten 0 ,3 ,5 and 13 fewer days of growth periods ,increase 679 .5 ,2 740 .5 ,3 376 .5 kg・hm - 2 and 4 861 .5 kg・hm - 2 more of biological yields ,boost 424 .5 ,1 729 .5 ,2 032 .5 kg・hm - 2 and 2 971 .5 kg・hm - 2 more of economic yield than all-film mulch hole sowing ,half-film mulch hole sowing ,half-film mulch furrow sowing and outdoor sowing .There-fore ,popularizing all-film double-furrow sowing could significantly increase corn yield ,ensuring national food security .关键词
覆膜栽培/玉米/土壤水分/土壤温度/产量Key words
cultivation of plastic mulching/maize/soil moisture/soil temperature/yield分类
农业科技引用本文复制引用
郭满平,刘生瑞,白宏鹏..不同覆膜栽培对玉米土壤水分温度及产量的影响[J].干旱地区农业研究,2015,(2):50-55,6.基金项目
甘肃省农业厅旱作农业示范项目 （）
