Greenhouse planting case diagram
"Greenhouse vegetables must be scientifically and rationally fertilized in order to obtain high yields and high efficiency. If fertilizers are used improperly, it will not only result in the failure of vegetables to produce less, but will also lead to soil compaction, resulting in vegetable fertilizer damage, and even excessive levels of nitrates and nitrites in vegetables." Harmful to human health, therefore, in greenhouse vegetable production, we must be careful to apply chemical fertilizers and scientific fertilization.†At present, Li Linxiu, dean of the Agricultural Bureau of Nanjiang County Agriculture Bureau and Jingzhuo Station, is currently training large vegetable planters in Yushu Village, Dongbu Town. It is said that the fertilization of greenhouse vegetables must be scientific. In the production process, it is necessary to pay attention to the following six elements of fertilization.
First, farmyard fertilizers must be cooked
Greenhouse vegetables should be fully cooked when applying farmyard fertilizers. Because pathogenic bacteria and eggs are not present in decomposed farmyard fertilizers, it is easy to spread the disease if it is applied to vegetables.
In addition, if the farmhouse fertilizer is put into a greenhouse and then decomposed, ammonia gas will be produced and the vegetable seedlings will be burned. Therefore, the farmyard fertilizer should be fully cooked before use.
Second, scientific application of organic fertilizer
Jinbao Fermenting Ferment Fermenting Fermenting Organic Fertilizer contains microorganism activating bacteria. It is a “four-in-one†fertilizer compounded by organic fertilizer, inorganic fertilizer, fungus fertilizer and synergist. It realizes the scientific formulation of various fertilizers with complementary advantages. It is one of the best fertilizers to achieve balanced fertilizer application in greenhouses. The vegetable-specific compound fertilizer is developed based on the characteristics of different vegetables and fertilizer requirements, and the nutrients are more complete, and the nutrition is more scientific. More reasonable, more targeted, can significantly increase greenhouse vegetable yield and quality after application.
At the same time, the application of bio-organic compound fertilizer is also beneficial to improve the soil, increase soil fertility, and create a good environment for the growth of vegetables. Because of the oxygen-consuming fermentation, organic manure basically kills all harmful germs and eggs, and can loosen the soil. It is a high-quality farmyard fertilizer and should be widely promoted.
Third, fertilization method should be reasonable
Basal fertilizer is best applied one week before the colonization of vegetables, and it should be mixed well with the soil. Fertilizer can be planted at a distance of 7 to 10 cm from the plant or chased. After the topdressing, cover the soil and water in a timely manner. Do not spread the fertilizer directly on the ground or on the plants so as to prevent the fertilizer from volatilizing or burning the vegetable seedlings.
Fertilizers outside the roots should be at the peak of the fertilizer needed for vegetables and the late growth of vegetables. It's best to choose to do it on cloudy days or evenings. Spray as far as possible on the new leaves and the back of the leaves to help the vegetables absorb.
Fourth, appropriate amount of fertilizer application
Fertilizers in greenhouses are not easily lost. Excessive application of chemical fertilizers will increase the concentration of salt in the soil, leading to soil salinization.
To control nitrogen fertilizers and increase phosphorus and potassium fertilizers, the nitrogen fertilizers to be banned or limited shall be ammonium nitrate, potassium nitrate and compound fertilizers containing nitrate nitrogen. In greenhouse vegetable management, it is necessary to increase ventilation time and enhance light intensity, which can reduce the nitrate content of vegetables.
Greenhouse vegetables should not be applied with chlorinated fertilizers. Because chloride ions can reduce the starch content in vegetables, the quality deteriorates, and residues in the soil can cause soil compaction.
At the same time, limited use of magnesium sulfate, ammonium sulfate fertilizers. Because sulfate ions are not easily absorbed by vegetables, long-term application will remain in the soil and endanger the growth of vegetables.
Fifth, use plant growth regulators to be appropriate
Plant growth regulators (such as gibberellin, ethephon, paclobutrazol, etc.) can promote the production of vegetables if used properly, but each regulator has certain conditions and scope in application, especially to use Time and concentration cannot be careless, otherwise the effect of increasing vegetable yield cannot be achieved. With improper use of plant growth regulators, people's long-term consumption will be detrimental to their health.
Six, biological bacteria is good
Although the demand for trace element fertilizers on vegetables is small, its role in the metabolism of vegetables is very great, which can greatly improve the quality of vegetables. At present, the commonly used microbial microbial fertilizer contains "nitrogen-fixing, phosphate-resolving, and solution-free" complex functional bacteria. Biological, organic, inorganic, and trace elements are all in one. Bio-fertilizers are mostly used as base fertilizers and can also be used for seed dressing, soaking or top dressing. Product characteristics include increasing production and income, increasing fertility, strengthening stress resistance, early maturing and high yield, reducing cost and increasing efficiency. In the first year, the amount of chemical fertilizer can be reduced by 30%, and the amount of chemical fertilizer can be replaced by 60% in the second year. Reduce pesticide use and reduce costs. Economic crops increase production by 20%-50%, and field crops increase production by 10-20%.
For details, please contact: Beijing Huaxia Kangyuan Technology Co., Ltd. Telephone Toll Free Hotline 
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