摘要
本文阐述了在NFT系统上试验探讨营养液溶氧量与环境因子的相关关系,就如何改善溶氧供给,提出若干改进NFT设施设计的建议,如:适当加大贮液池;在贮液池上附设循环液的喷洒装置;适当扩大栽培床的槽腔;夏天采用低温的地下水配制贮液池中营养液,或降低温室(大棚)的气温。
By exploring the significant relationship between the environment fectors and the oxygen content of nutrient solution in NFT system, some suggestion a bout engineering design of the NFT system are offered to improve oxygen supply to roots. For instances:· Enlarging the volume of solution tank properly;· Attaching the sprinkling device of circulating solution;· Enlarging the tunnel of bed properly.Using the cold underground water to make up the nutrient solution in the tank, or reducing the greenhouse temperature in summer.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
1991年第4期55-62,共8页
Transactions of the Chinese Society of Agricultural Engineering
基金
农业部"七五"重点科研项目5-02-03资助
关键词
NFT
无土栽培
营养液
溶氧量
NFT Hydroponic culture Oxygen content solving in solution
