中国蔬菜Issue(22)：31-37,7.
根层调控对设施番茄生长及氮素利用的影响
Effects of Integrated Rootzone Management on Greenhouse Tomato Growth and Nitrogen Utilization
摘要
Abstract
The effects of two treatments, including rootzone water and fertilizer management ( W2FS) and integrated rootzone management ( W2FR ) on tomato ( Lycopersicon esculentum Mill.) yield, root growth, N utilization and soil Nmin residue were conducted in greenhouse tomato system in Shouguang. The results showed that significant reduction in the amount of water and. Fertilizer input were found in the W2FS and W2FR treatments compared to conventional treatment, indicating the reduction of irrigation amount by 29% and the reduction of fertilizer amount (N-P2O5-K2O) by 59%, 23%, 42% and 79%, 78%, 48%, respectively. Integrated rootzone management ( W2FR ) significantly improved root growth and development.Compared to W1Fc, W2F0, W2FS treatments, the total root length in W2FR treatment increased by 57%, 42% and 46%, root surface in W2FR treatment increased by 62%, 34% and 36%, and root volume in W2FR treatment increased by 70%, 29% and 29%, respectively. The partial productivity of fertilizer ( N-P2O5-K2O ) increased by 4.0, 3.7 and 1.0 folders with integrated rootone management ( W2Fr ), in comparison to conventional management. Intergated rootzone management technology can improve the use efficiency of fertilizer and decrease the risk of nitrogen leaching.关键词
水肥-体化/根层水肥调控技术/根层综合调控技术/番茄/设施栽培/氮素淋洗Key words
Integrative water and fertilizer/Rootzone water and fertilizer management/Integrated rootzone management/Tomato/Nitrogen leaching分类
农业科技引用本文复制引用
李俊良,张经纬,王丽英,金圣爱,陈清..根层调控对设施番茄生长及氮素利用的影响[J].中国蔬菜,2011,(22):31-37,7.基金项目
国家公益性行业(农业)科研专项(201103003, 200903011),现代农业产业技术体系北京市果类蔬菜创新团队项目 （农业）
