摘要
针对保护地渗灌存在的问题 ,研制了高效节水、经济耐用、性能优良的节点式渗灌管。试验结果表明 ,此种渗灌管节水效率是普通渗灌管的一倍以上 ,生产番茄的灌溉定额为 12 2 5 5～ 12 90m3 hm- 2 ,植株间番茄果实的均匀度达到了0 .75以上 ,单位面积产量 58680～ 59910kghm- 2 ,水资源的效率为 46.44～ 47.88kgm- 3 。
In order to solve the problems in greenhouse subirrigation ,a kind of sectional type of subirrigation tip was developed.Application results showed that,this sectional subirrigation tip has the characteristics of saving water effectively and cheap. The water use efficiency was two times of the common subirrigation tip. The irrigating water quota was 1225 5-1290m 3 ha -1 ,the degree of irrigation homogeneity was 0.75. The tomato output was 58680-59910kg ha -1 ,and the water efficiency was 46.44-47.88kg m -3
出处
《土壤通报》
CAS
CSCD
北大核心
2004年第1期12-15,共4页
Chinese Journal of Soil Science
基金
辽宁省十五期间重点攻关项目 ( 2 0 0 1 2 1 2 0 0 )资助
