Fertilization of melons should be six

When you look at soil fertilization, different soil types and fertilization methods are different. Light loam has good fertilizer and fertilizer performance, and can be applied more and reapplied. Sand loam can be fertilized multiple times, but the amount is less, to prevent fertilizer waste. Pay too much for the organic fertilizer after decomposing.

Second, look at the seedling fertilization Master the principle of “small seedling period, stable flowering period, and heavy fruit period”. In the early stage, nitrogen fertilizer was the main factor, and nitrogen, phosphorus and potassium were combined in the middle and late stages. However, the variety of ripeness is different, and there are differences in fertilization. Early-maturing varieties have a short vegetative growth period, and the early stage should focus on promotion and lay a foundation for high yield; late-maturing varieties have a long vegetative growth period, and the early focus is on controlling and promoting the combination, so that the seedling stage can grow steadily. The melon seedlings are generally applied with a concentration of 10% to 15% of clear manure water, which can be gradually thickened as the plants grow. In the later stage of growth, it can generally be concentrated to 30% to 40%.

Third, look at climate fertilization In summer, the temperature is high, the fertilizer is decomposed quickly, the rain is high, and the fertilizer is easily lost. When fertilizing, the method should be adopted in a small amount and in a small amount, and the fertile farmyard fertilizer should be applied and dispersed in a timely manner. More sunny days, less rainy days.

Four kinds of melons and vegetables type fertilized beans have rhizobium nitrogen fixation, need less nitrogen fertilizer, need more phosphate fertilizer; root vegetables, yam need more potassium fertilizer; leaf vegetables only need more nitrogen fertilizer; fruit vegetables in the foot On the basis of nitrogen fertilizer, it is necessary to match phosphorus and potassium fertilizer.

Five to see fertilization Fertilization Ammonium bisulfate, human excrement and other nitrogen fertilizers are acidic, can not be mixed with alkaline fertilizers such as grass ash, so as not to reduce fertilizer efficiency. Superphosphate or the like cannot be mixed with acidic fertilizer. Ammonium hydrogen sulfate and urea are in contact with seeds, stems and leaves, which are easy to cause burns. Urea is used as a top dressing, and its concentration cannot exceed 1%. Ammonium chloride and potassium chloride cannot be used on chlorine-removing crops such as potatoes. In the later stage of growth, it can generally be concentrated to 30% to 40%.

Six look at fertilizer fertilization The farmer's fertilizer is effective and is generally used as a base fertilizer. Fertilizer fertilizer is fast, nutrients are incomplete, fat is easy to cause long, only suitable for topdressing and a small amount of base fertilizer. Ammonium bicarbonate is volatile, and it is used as a base fertilizer. If it is used for top dressing, it should be applied in a ditch 10 cm away from the root of the crop and covered in time to avoid smashing the crop. Urea is generally used for top dressing, and should be applied 4 to 6 days in advance in order to exert fertilizer efficiency. Phosphate fertilizer has small mobility and is generally used for seed fertilizer and top dressing. For top dressing, it is necessary to ditch and apply it to the root layer.

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