Abstract:

Studys have been done on effects of planting in furrow and whole plastic-film mulching on double ridges in autumn on yield of cron production and water use efficiency in dry lands with process indices of diminishing useless evaporation of soil water in winter and spring. Soil moisture content has been raised and the economic trait of corn has been improved by use of techniques of whole plastic-film mulching on double ridges and planting in catchment furrows in dry lands.The result displayed that the way of planting in furrow and whole plastic-film mulching on double ridges in autumn reduced the useless evaporation of soil water in winter and spring，increased soil moisture content and economic trait of corn remarkablely;The yield of corn production increased 16.13% and 46.08% compare with those of whole plastic-film mulching on double ridgesin before sowing and routine method of semi-mulching as well as production rate of soil water raised 34.5% and 57.8%,respectively.