In addition to potassium chloride, potassium oxide, potassium sulfate and other fertilizers, manure stalks, peanut meal, human waste, livestock and poultry manure, turf mud, grass and wood ash and other farmyard manure, contain different amounts of potassium components. Potassium can enhance the photosynthesis of plants, the synthesis of carbohydrates, make crop stems robust, and full of grain. It can also improve the quality of crops. Such as sweet potato starch content can be increased by 0.6% to 2.1%, sesame crude fat content can be increased by 0.8%, sugar cane sugar content can be increased by 1.1%.
Potash can also enhance the resistance of crops. After applying potassium fertilizer, rice can reduce leaf spot, rapae blight, sheath blight, and rice blast disease. It can also improve the cold resistance, drought resistance and lodging resistance of rice. Therefore, in potassium-deficient paddy fields, the application of 0.5 kg of potassium chloride can increase rice production by 2.5 to 5 kg.
The use of potassium-containing farmyard fertilizer should pay attention to two points: First, due to late fertilizer, it is necessary to apply early; Second, the turf mud, potassium in the plant ash, easily leached by water, cast water paddy can not be premature drainage. Potassium chloride and potassium sulphate with higher potassium should be used. (1) Application rate. In soils deficient in potassium, 0.7 kg of potassium chloride or 10 kg of potassium sulfate is applied per acre of rice, which has a significant effect on yield increase. (2) Application period. Can be used as basal fertilizer, fertilizer can also be used. For basal fertilizer or topdressing, it is better than late production. In poorly preserved sandy fields, basal fertilizer and top dressing should be combined and applied in phases. (3) Application method. When rice is topdressing, the effect of deep application of ball fertilizer is the best. Generally, it must be applied in conjunction with farmyard manure or nitrogen and phosphorus. After the application of Shida. When applied to paddy fields, it should be applied after dew or dryness of rice leaves to avoid burning the leaves.
Potash can also enhance the resistance of crops. After applying potassium fertilizer, rice can reduce leaf spot, rapae blight, sheath blight, and rice blast disease. It can also improve the cold resistance, drought resistance and lodging resistance of rice. Therefore, in potassium-deficient paddy fields, the application of 0.5 kg of potassium chloride can increase rice production by 2.5 to 5 kg.
The use of potassium-containing farmyard fertilizer should pay attention to two points: First, due to late fertilizer, it is necessary to apply early; Second, the turf mud, potassium in the plant ash, easily leached by water, cast water paddy can not be premature drainage. Potassium chloride and potassium sulphate with higher potassium should be used. (1) Application rate. In soils deficient in potassium, 0.7 kg of potassium chloride or 10 kg of potassium sulfate is applied per acre of rice, which has a significant effect on yield increase. (2) Application period. Can be used as basal fertilizer, fertilizer can also be used. For basal fertilizer or topdressing, it is better than late production. In poorly preserved sandy fields, basal fertilizer and top dressing should be combined and applied in phases. (3) Application method. When rice is topdressing, the effect of deep application of ball fertilizer is the best. Generally, it must be applied in conjunction with farmyard manure or nitrogen and phosphorus. After the application of Shida. When applied to paddy fields, it should be applied after dew or dryness of rice leaves to avoid burning the leaves.
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