After three good fat watermelons
According to the requirement of fertility of watermelon during different growth periods, it can not only meet the needs of various nutrients during the growth period of watermelon, but also improve its quality and yield, but also improve the utilization of fertilizer. Based on the application of basal fertilizer, the following 3 fats should generally be followed: 1. Lightly lifting Miao Fei. After the watermelons are planted with slow seedlings, or live in the 4-5 leaf stage, 10-15 cm from the roots are arc-shaped, and 5 kg of urea is applied per acre. It is best to make a 0.5% solution and apply it until the fertilizer solution penetrates. After the cover is covered. For the weak seedlings can be appropriately added "eccentric" fertilizer. Do not use too much fertilizer at the seedling stage, too close to the root, so as not to damage the root and form a stiff seedlings. 2. Skillfully applying cranberry fertilizer. After the plants spread, the growth rate is accelerated, and the demand for nutrients is increasing. Therefore, it is necessary to increase the topdressing amount to meet the growth needs. It is best to use high-quality organic fertilizers such as cake fats and large manures. Each 50-100 grams of cake fertilizer, or top-dressing compound fertilizer 15 kg per acre. When the vine grows about 30 centimeters in length, about 10 centimeters of shallow ditch is applied to the side of the scorpion crawling, and water is poured after covering the soil. For melons with high soil fertility, sufficient basal fertilizer and more vigorous seedlings, the amount of topdressing should be reduced or not applied, so as to avoid excessive fertilizer and water causing excessive growth and affecting melons. The application of cranberry fertilizer can not only promote the growth of stems and leaves of watermelon, but also can solve the nutritional needs of the nectarine period, and is beneficial to maintaining the growth of the plants and prolonging the period of pod formation. 3. Re-expanded melon fertilizer. After sitting on melon, watermelon enters the squashing period, which is the time when the watermelon needs the largest amount of fertilizer. Watermelon expansion period is generally divided into two topdressing applications, mainly phosphorus and potassium fertilizers, with the application of nitrogen fertilizer. The first time the fertilizer is applied to the egg size of the young melon, 20-25 kg of compound fertilizer, 5-6 kg of urea, or 15-20 kg of diammonium phosphate and 15 kg of potassium sulfate are used per mu; when the size of the mouth is the second time, Mushi DAP 5 - 7.5 kg, potassium sulfate 2-3 kg. The result was that the fruit pods had been ridged and ridged, and it was easy to damage the stems and leaves by furrowing or opening a hole to fertilize. It is advisable to fertilize water immediately after spraying or spreading. In addition, according to the needs of the latter part of the results, can also be outside the top dressing, generally available l% -1.5% of the superphosphate calcium leaching solution spraying, can also use 0.5% urea and dimethoate, thiophanate mix. Hanging Fire Extinguisher,Carbon Dioxide Fire Extinguisher,Fire Extinguisher Equipment,Automobile Automatic Fire Extinguisher DONGGUAN TENYU TECH.INC , https://www.tenyutech.com