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1.黄瓜营养液膜栽培的耗液量阴天少、晴天多、低温少,高温多、晚上少,白天多、苗期少,营养生长和生殖生长盛期多。经测定,结果盛期晴天8:30～17:30单株平均耗液量达1205.3毫升,阴天803.5毫升。2.黄瓜对营养成分的消耗前期少,后期多。4月下旬至5月上旬测定溶液的电导率,每天只下降l0μυ/cm,6月下旬进入结果盛期后电导率每天下降180μυ/cm,相差10余倍,所以前期可以10～15天更新一次溶液,后期应2～3天更新一次溶液。3.黄瓜营养液配方中氮素应以硝态氮为主,它与茄科蔬菜不同,黄瓜用酰氨态氮叶片黄绿生长不良。铁素需要量不大,但使用柠檬酸铁易出现缺铁症状,应以螯合态为好。4.营养液膜栽培方法抗高温的能力,比其它栽培方法强。5.南京黄瓜营养液膜早熟栽培,应选早熟丰产品种,3月中下旬用营养纸育苗方法播种育苗。用尼隆绳子牵引方法支撑,生长期间结瓜部位上升,通过下降绳子的方法,保证植株结瓜部位在适当高度,改善受光条件,提高植株产量。6.试验结果,在20.94平方米的面积上,采收黄瓜109.55公斤,折合亩产3487.39公斤。
1. Cucumber nutrition liquid film cultivation of cloudy, less sunny days, low temperature, high temperature, less night, more during the day, less seedling, vegetative and reproductive growth and more. The results show that the peak of the sunny 8:30 ~ 17:30 average single liquid consumption of up to 1205.3 ml, cloudy 803.5 ml. 2. cucumber consumption of nutrients less pre-more late. The conductivity of the solution was measured from the end of April to the beginning of May. The conductivity decreased only by 10μυ / cm per day. The conductivity dropped 180μυ / cm every day after entering the peak in late June, which was a difference of more than 10 times. Therefore, the conductivity of the solution could be updated from 10 to 15 days Solution, late should be 2 to 3 days to update the solution. 3. Cucumber nutrient solution formula should be mainly nitrate nitrogen, it is different with solanaceous vegetables, cucumber with acridine nitrogen leaves yellow-green poor growth. Ferrite need is not large, but the use of iron citrate prone to iron deficiency symptoms should be chelated as well. 4. Nutrient liquid membrane cultivation method The ability to resist high temperature is stronger than other cultivation methods. 5. Nanjing cucumber nutrition liquid film premature cultivation, should be selected early maturing varieties, mid-to-late March with nutrition paper seedling planting seedlings. Nylon ropes traction method used to support the growing parts of the knot rise, by dropping the rope method to ensure that plants lug parts at the appropriate height to improve the light conditions and improve plant yield. 6. Test results, in the area of 20.94 square meters, harvest cucumber 109.55 kilograms, equivalent to 3487.39 kilograms per mu.