The four traditional formulas of urea promote growth and yield, and double the fertilizer efficiency
Nitrogen is a key factor affecting the normal growth and development of crops, while urea is a fertilizer with a high nitrogen content. However, urea alone cannot meet the needs of crops for other nutrients. In order to better tap its production potential, its synergistic effect can be improved by combining it reasonably.
The first formula is the ratio of urea to diammonium hydrogen phosphate. Potassium dihydrogen phosphate is an effective fertilizer with phosphorus and phosphorus binary, which can be sprayed on the leaves with urea, which can meet the three nutrients of N, P and K required for crop growth. Its usage is as follows: during the growth period of any kind of crop, apply 50 g of urea per mu, spray foliar spray on 20 kg of water, once every ten days, and spray 2-3 times in a row. This method makes the plant look more environmentally friendly, while also greatly improving production efficiency.
The second ratio is urea plus glucose. The photosynthetic process of plants produces a large amount of glucose, which together with urea can promote the photosynthetic rate of plants and the biosynthesis of organic matter. 100 g of urea and 50 g of glucose were applied to the leaves and sprayed 20 kg per mu. This method results in greener, thicker leaves and significantly accelerates growth.
In agricultural production, weed control is a necessary job, usually using the method of spraying pesticides. However, there are times when herbicides don't work as well as one would expect, and they can't eradicate all the weeds. If that's the case, we can add urea when spraying. The application of urea can make the cortex on the surface of the plant soften, accelerate the penetration of herbicides into the soil, and thus achieve the purpose of weeding. It is used by adding 30 g of urea to a can of herbicide, then mixing it and spraying it on the leaves.
The fourth formulation is a combination of urea and chlorpheniramine. As a new, high-efficiency and low-toxicity crop growth regulator, enoylmorpholine can be used in combination with urea, fungicides and insecticides, which can enhance the photosynthetic rate of crops, accelerate the formation of root systems, and enhance the stress resistance of crops. In the case of leafy vegetable type, 100 g of urea, 10 g of 8% insecticidal net were applied per mu, 20 kg of water was added, and evenly sprayed. For fruits, vegetables and other crops, 50 g of dipotassium hydrogen phosphate, 10 g of 8% urea 8% were applied per mu, and 20 kg of water was used for leaf spraying. It can increase the nutrient growth, leaf width, leaf thickness, fruit setting rate and disease resistance of the plant, so as to achieve the purpose of increasing yield.
When applying urea-type foliar fertilizer, the spraying amount should be strictly controlled to avoid fertilizer damage. The concentration of urea spray is 05%-0.8% is appropriate, and 1% is appropriate. Whereas potassium dihydrogen phosphate is measured at 02%-0.Spray at a concentration of 3%. In addition, when spraying foliar fertilizer, pay attention to the morning and evening on sunny days or low evaporation, so that the effect of the fertilizer can be better used.
In short, urea is a new type of nitrogen, which can be applied in combination with other fertilizers and regulators to better play a synergistic role. It has been proved that this combination model can effectively improve crop yield and quality. I hope that you can apply them in your practical work to increase our grain production and improve the quality.