Nutrient solution and its management method for shallow liquid flow cultivation of green vegetables in high temperature season
A management method and nutrient solution technology, applied in fertilization methods, leaf crop cultivation, liquid fertilizer, etc., to achieve the effects of increased yield, good root development, and good heat resistance
Active Publication Date: 2022-05-27
SHANGHAI ACAD OF AGRI SCI +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a shallow liquid flow cultivation nutrient solution and its management method for green vegetables in high temperature seasons, which solves the problem of high yield and good plant shape of green vegetables in the prior art under high temperature and low light conditions in summer, and adapts to market demand. technical issues
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Embodiment 1
[0048] The nutrient solution for the shallow sap flow cultivation of green vegetables in the high temperature season is prepared, and the specific components are as follows: calcium ammonium nitrate 1188.8 mg·L -1 , potassium nitrate 369.0mg·L -1 , ammonium dihydrogen phosphate 132.3 mg L -1 , magnesium sulfate heptahydrate 246.5mg L -1 , potassium sulfate 122.0mg·L -1 , Sodium Ferric EDTA 40mg L -1 , sodium borate 4.41mg·L -1 , manganese sulfate tetrahydrate 2.13mg·L -1 , zinc sulfate heptahydrate 0.22mg·L -1 , copper sulfate pentahydrate 0.08mg L -1 , ammonium molybdate tetrahydrate 0.02mg L -1 . Among them, the content of each ion or element in this nutrient solution is: NO 3 - 15.75mmol / L, NH 4 + 2.25mmol / L, P 1.15mmol / L, K5.05mmol / L, Ca 5.5mmol / L, Mg 1mmol / L, S 1.7mmol / L, Fe 95μmol / L, B 11.6μmol / L, Mn 9.5μmol / L , Zn 0.8 μmol / L, Cu 0.3 μmol / L, Mo 0.1 μmol / L.
[0049] From April 26 to May 22, 2019, it was held in the glass greenhouse at the Sunqiao Base of S...
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The invention belongs to the technical field of vegetable hydroponic planting, and discloses a nutrient solution for shallow liquid flow cultivation of vegetables in high temperature seasons and a management method thereof. The nutrient solution is composed of the following components: calcium ammonium nitrate, potassium nitrate, ammonium dihydrogen phosphate, seven Magnesium sulfate hydrate, Potassium sulfate, Sodium iron EDTA, Sodium borate, Manganese sulfate tetrahydrate, Zinc sulfate heptahydrate, Copper sulfate pentahydrate, Ammonium molybdate tetrahydrate. The nutrient solution of the present invention is a special nutrient solution formula for NFT cultivation of green vegetables in summer high temperature season, and solves the phenomenon that the growth of green vegetables is hindered and the plant shape is not good under the high temperature and low light environment of the greenhouse in summer; compared with the existing commercially available nutrient solution, the present invention The nutrient solution has higher yield and quality for leafy vegetables, the plant shape is beautiful, the root system is well developed, and it has good high temperature tolerance; this formula not only ensures the yield and quality of summer vegetables, but also produces nutrient solution per kilogram of vegetables more The cost is reduced by 6%-33%, and it has the advantages of water and fertilizer saving, high pH stability, and can effectively save production costs.
Description
technical field [0001] The invention belongs to the technical field of hydroponics planting of vegetables, and particularly relates to a nutrient solution for shallow liquid flow cultivation of green vegetables in high temperature season and a management method thereof. Background technique [0002] Nutrient liquid film technology is abbreviated as NFT (Nutrient Film Technique), which has the characteristics of good rhizosphere environment, fast growth rate, small footprint, standardized operation, product hygiene and safety, and low investment in facilities. It has gradually become the preferred mode of annual production of green leafy vegetables. [0003] China is one of the oldest countries in the world for cultivating green vegetables. Green vegetables like cold and cool, have strong cold resistance, and poor heat resistance. They grow best at 18 to 20 °C and sufficient light, and -2 to -3 °C. Safe for overwintering. In summer greenhouse conditions, the temperature is g...
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IPC IPC(8): C05G1/00C05G5/23A01G22/15A01C21/00
CPCC05B7/00A01G22/15A01C21/00
Inventor 崔佳维余纪柱张红梅丁小涛金海军何立中
Owner SHANGHAI ACAD OF AGRI SCI