摘要
:对山东禹城地区采用滴灌灌溉的番茄 ,在日光温室内 1-4月份生长的耗水规律及空气温度、空气湿度和地温等环境因素进行了初步的研究。结果表明 ,在严冬季节不用加温条件下 ,日光温室内的平均温度可维持在18℃左右 ,内外温差达 2 0℃左右 ,可基本满足番茄生长发育的需求。将滴灌带下 15cm处的土壤水势维持在番茄生长的适宜范围 (≥ -2 0kPa) ,日光温室内的水面蒸发量与作物的需水量和灌溉水量存在很好的一致关系 ,因此 。
This paper is an elementary study of tomato consumption rules, the air temperatures and humidity, and soil temperatures under drip irrigation planting in green house of sunshine in the Yucheng district of Shandong province. The results show that the temperature can be kept about 18℃ while the temperature differences being to 20℃ in deep winter, Which is satisfaction of growth demand of tomato.There are good relationships for evaporations of water surface and water demands of the crops with irrigation quantities in green houses, which is can be used to guide practice.
出处
《节水灌溉》
北大核心
2000年第3期25-27,共3页
Water Saving Irrigation
基金
中国科学院禹城综合试验站开发基金
