温室蔬菜微灌试验研究

在石家庄市果菜技术推广试验场490间温室中,连续3年对多种蔬菜进行微灌试验研究的结果表明,微灌不仅省水、节能,而且能调节和改变土壤中的水、肥、气、热状况。因而试验在省水44.3％的情况下,平均一年三茬蔬菜增产27.9％,年增收2015.11元/亩。微灌工程投资平均810元/每亩,当年还本有余。

The Experimentation on Micro-irrigation in Greenhouse

That micro-irrigation not only saves water and energy, but also regulates and changes the water, fertilizer, air and heat condition in soil was proved by result of the three years' experiment on several kinds of vegetables from 490 greenhouses on Shijiazhuang Experimental Farm for Popularizing the Techniques of Growing Fruit and Vegetables. The average harvest of 3 batches vegetables increases 27.9% under the condition of saving water 44.3%. The yearly benefit is 2015.11yuan/mu. The average investment is 810yuan/mu for micro-irrigation system construction, so the investiment was recovered in the first year.