The growth of vegetables is inseparable from the supply of water and fertilizer, but how to properly water and fertilize determines whether spinach can grow better. Huinong School prepares spinach watering and fertilizing small tricks for everyone to solve the problem of spinach cultivation.
How to water?
1. For watering, it is necessary to carry out soil preparation first, to ensure that there will be no water accumulation in the ditch after watering , and the whole land needs to be thin and solid.
2, the watering of spinach should not be watered, because watering from the surface of the soil, so that the surface of the surface of the soil is 15 cm below the water is often suitable, and watered once a day or watered once a day, not only to ensure the spinach The water needed for growth can also effectively prevent the yellowing of spinach leaves and improve the quality of spinach.
If in the planting process, if it is convenient for the labor force, water is discharged into the ditch for watering, it is easy to form soil plate and lack oxygen, and the spinach leaves are easy to yellow, which seriously affects the commercial and intrinsic quality of spinach.
How to apply fertilizer?
Before fertilization, you need to understand the growth habits of spinach. Spinach has strong salt and alkali resistance, but it is not resistant to acid, so the soil for their growth is suitable for pH 7.3-8.2. If the tip and leaf margin of spinach are yellowish brown, the roots are brown, indicating that the soil is too acidic, which will cause the spinach to stop growing and even die.
Spinach is a fast-growing green leafy vegetable. It needs more nitrogen fertilizer during the growth process, but the nitrogen fertilizer is too much, the leaves are thin, and the resistance is poor. Therefore, it is necessary to properly apply phosphorus and potassium fertilizer. According to analysis, for every 667 square meters of 2000kg spinach, it is necessary to absorb 16.8kg of pure nitrogen, 4.2kg of phosphorus (P2O5) and 10kg of potassium chloride. After the spinach grows 2-3 pieces of true leaves, it starts to topdress and is poured with 10% manure; when 4-6 pieces of leaves are used, the fertilizer is further chased, and the concentration gradually increases to 40%, and urea can be applied every 667 square meters. 5-10kg, watering after topdressing to keep the soil moist.
For the watering and fertilization of spinach, we need to treat it scientifically, and we must not care about it to ensure the quality and yield of spinach.
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