Fertilizing melon vegetables is the key to increasing yields of melons. The practical experience of vegetable farmers is to look at the land and see how to fertilize vegetables.
"Farming" means that if there is no fertilization on the rainy day, the fertilizer will not be lost. The days of nausea will not be applied, the fog will not be applied, and the temperature will not be applied, so as to avoid the occurrence of mildew in the plants. Fertilization should be selected in sunny weather. "See fertilization", that is, good soil quality Less application, poor soil quality and multiple application, over-consolidation, hard-to-preserve application of organic fertilizer and other topdressing concentrations should be appropriate, diligence, thin pouring, multiple times, a small amount.The general application concentration of the seedlings is 10 %-15% of the excrement water can gradually increase as the plant grows, and can be increased to 30% to 40% in the later stage of growth.
When cooking vegetables, it is necessary to know how to identify which fertilizer is lacking in vegetables. Also learn to "six look":
Types of fertilization: legumes have nitrogen-fixing rhizobium, require less nitrogen and require more phosphate; root vegetables and yams need more potassium; leafy vegetables only need more nitrogen; fruits and vegetables in the application of nitrogen fertilizer basis On the other hand, phosphorus and potassium fertilizers are needed.
Soil fertilization: different soil quality, fertilization methods are not the same. The light loam soil pellet structure has good fertilizer and fertilizer performance, and can be applied and reused. The sandy loam was used less frequently to prevent fertilizer waste. At present, many vegetable farmers neglect farmyard manure and phosphorus and potash fertilizers, leading to imbalances in the nutritional ratio of vegetables and should be improved in time.
Climate fertilization: Summer temperatures are high, decomposition of fertilizers is quick, rainfall is high, and fertilizers are easily lost. When fertilizing, a small quantity and multiple methods should be adopted, and the decomposed farmyard fertilizers should be applied timely and dispersedly. Apply more on sunny days and less on rainy days. On the contrary, in winter, the temperature is low and there is little rain. The decomposed farmyard fertilizer should be applied early and the chemical fertilizer should be developed.
Seedling fertilization: see seedling fertilization generally grasp the principle of “fewer seedlings, stable flowering period, and heavy fruit periodâ€. In the early stage, nitrogen fertilizer was the main factor, and nitrogen, phosphorus, and potassium were used in the middle and later stages. However, varieties have different ripeness and fertilization. Early maturing cultivars have a short vegetative growth period, and they should focus on the promotion in the early stage and lay the foundation for high yields. Late maturing cultivars have a long period of vegetative growth, and early-stage cultivars focus on the control and promotion of binding to enable the seedlings to grow steadily.
Fertilizer Fertilizer: Farmyard fertilizer has long effect, full nutrients, not easy to cause leggy, generally used as base fertilizer, long-growing varieties can be buried fertilizer method. Fertilizer fertilizer effect is fast, nutrients are incomplete, fertilizer thick easily lead to leggy, only suitable for top dressing and a small amount of base fertilizer. Ammonium bicarbonate is volatile and can be used as a base fertilizer. If it is used for topdressing, it should be applied 10 centimeters away from the roots of the crop, and it should be covered in a timely manner to avoid smudging crops. Urea is generally used as a top dressing and should be applied 4-6 days in advance in order to exert its fertilizer efficiency. Phosphate mobility is small, generally for fertilizer, top dressing. For topdressing, it is necessary to open the ditch and apply it to the root layer.
Fertilizer application: Ammonium bisulfate, human fecal urine and other nitrogen fertilizers are acidic and cannot be mixed with alkali fertilizers such as grass ash to avoid reducing fertilizer efficiency. Superphosphate cannot be mixed with acidic fertilizers. Ammonium bisulfate and urea are in contact with species, stems and leaves, which can cause burns. Urea is used as top-dressing fertilizer, and its concentration must not exceed 1%. Ammonium chloride and potassium chloride cannot be used on bogey crops such as potatoes.
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