关键词: 夏玉米地；秸秆覆盖；节水调温

Abstract: The optimal sowing period and the growth of summer maize are often affected by the high temperature and less rainfall in the early Summer. Our experiments show that obvious effect of water saving, moisture preserving in the soil and temperature adjusting in summer sowing maize field was obtained and the disadvantageous influences of meteorological conditions in early summer were reduced by covering with wheat straw. It is a technique of water saving and high yield as the raw materials can be obtained locally, need less investments, work quickly and achive many things at one stroke. This technique is good for popularizing in the middle/northern Henan Province and the Northern China.

Key words: Summer sowing maize field, Summer sowing maize field, Mulching with straw, Water saving and temperature adjusting