Environmental protection type cucumber nutrient solution

Abstract

The present invention relates to a kind of environment protecting cucumber nutrient solution capable of altering the nitrogen form with environment temperature in soil-less culture technology. The cucumber nutrient solution contains N, P, K, Ca, Mg, S and other macro elements as well as Fe, Mn, Zn, Mo, B and other trace elements, and no pesticide and plant growth regulator. It has comprehensive and reasonable nutrients and can meet the need of cucumber growth. The present invention raises the utilization of nitrogen and lowers the cost of the nutrients liquid. The nutrients liquid is convenient in use, safe and pollution-less and coincides with the safety standard for producing green food.

Description

technical field [0001] The invention belongs to the technical scope of soilless cultivation, and in particular relates to an environment-friendly cucumber nutrient solution capable of changing the form of nitrogen with the change of ambient temperature conditions. Background technique [0002] Cucumber is one of the main vegetable crops that people like to eat. Because of its warm and humid origin, relatively high air humidity makes it easy to achieve high-quality and high-yield cucumbers, making it one of the main vegetable varieties in gardening facilities. According to statistics, in 2003, the area of ​​protected gardening in my country reached 2.1 million hm 2 . In northern horticultural facilities, due to the high economic benefits of cucumber, its planting area accounts for almost 30% to 40% of the protected cultivation area in the northern region, which shows its important position in protected cultivation. During the Ninth Five-Year Plan period, the National Scienc...

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Problems solved by technology

In order to achieve this goal, the inventor's research group used soilless cultivation technology to cultivate cucumbers. The nutrient solution formula used the Japanese garden test formula and Hoagland's formula. During the application, it was found that the application of these two formulas in Beijing and surrounding areas The effect is not ideal, and at the same time because the two formulas NO 3 -N concentration is high, on the one hand, the cost of nutrient solution increases, and on the other hand, there is excess nutrient solution NO 3 -N Potential risk of groundwater pollution (cultivation tanks have holes to discharge excess nutrient solution to ensure good growth of cucumber roots) and key issues such as inability to adapt to water quality characteristics in northern regions