摘要
大棚番茄栽培渗灌试验表明 ,保护地采用渗灌技术增产、节水效果明显。将土壤水吸力6kPa和40kPa作为控制灌水的上下限 ,从番茄的株高、茎粗、生物量、根系数量及其土层分布、产量、品质以及灌水量和灌水次数等方面对渗灌管埋深及防渗槽有无等技术进行评价 ,得出的结论为 :渗灌管埋深30cm ,下设防渗槽处理效果最佳 ;渗灌管埋深30cm ,无防渗槽处理次之 ;有防渗槽、渗灌管埋深20cm和40cm处理效果最差。
The percolation irrigation technology study was conducted on tomato cultivation in plastic house, the results show that the percolation irrigation in plastic house have the advantages of increasing tomato yield and saving water; the seeping proof percolation irrigation which percolation tube was placed in the depth of 30 cm of soil have best effects of increasing plant growth, activating consecutive and downward growth of root, improving organic matter accumulation, tomato yield and qualities and reducing usage of water, the percolation irrigation which percolation tube was placed in the depth of 30 cm of soil take second place while the seeping proof percolation irrigation which percolation tube was placed in the depth of 20 and 40 cm of soil is the last.
出处
《沈阳农业大学学报》
CAS
CSCD
2001年第1期32-36,共5页
Journal of Shenyang Agricultural University
基金
国家教育部高等学校博士学科点专项科研基金资助项目(970304)
