番茄营养液深液流无限生长型栽培 (Ⅲ)营养液的管理与调控

Management and Control of Nutrient Solution of the Technique of Infinite-growth-typed Tomato Cultivated by DFT

根据北京地区的水质特点和非常规栽培的特殊性 ,制定了在营养液深液流无限生长型栽培条件下使用的营养液配方。并根据番茄生长发育的不同时期和养分吸收特性 ,及时调整营养液的组成成分、浓度、酸碱度等 ,对营养液实行动态管理。栽培试验结果表明 ,该配方中的各种营养成分 (氮、磷、钾、钙、镁等 )基本可以被番茄均衡地吸收 ,属于营养均衡的配方。

On the basis of synthesizing various nutrient solution doses of tomato culture, national and abroad, and according to the qualities of water in Beijing and the unconventional culture, a new kind of the nutrient solution doses under the unconventional culture of infinitive-growth-typed cultivated by deep nutrient solution flow was formulated According to different qualities during different periods of tomato growth and development, the components, concentration, acidity-alkalinity, etc in nutrient solution were adjusted, and a dynamic management to the flow was carried out The results of the planting experiments showed that the various nutritive components (N, P, K, Ca, Mg, etc ) in the dose could be balancedly absorbed by tomato, and that the dose was nutrition-balanced