Experienced farmers who grow sweet potatoes should spread gray sweet potatoes to grow not only big but also good taste.
Friends with experience in agricultural production should know that the ash left from the fire in rural areas, commonly known as plant ash, can greatly increase the yield of sweet potatoes. Although this is the experience summed up by farmers in agricultural production, it does contain a certain scientific basis.
The reason why plant ash can improve the yield and quality of sweet potato is that it contains potassium carbonate, the main component of plant ash is potassium carbonate, which greatly improves its nutritional value. Because plant ash is the burning ash of the plant, the mineral components in the plant are present, most of which are in the form of carbonate, and the highest content is potassium carbonate, accounting for about 10%.
The second largest ingredient is naturally phosphorus, but it also exists in the form of phosphate, accounting for about 2% of plant ash. In addition, plant ash also contains trace elements such as calcium, iron, zinc, fierce, copper, boron, molybdenum and so on. It can be said that plant ash is an omnipotent compound fertilizer, which contains not only a large number of elements, but also trace elements.
Compared with what we call chemical fertilizer, plant ash does not contain nitrogen fertilizer, so there is no plant growth. Compared with fertilizers such as potassium dihydrogen phosphate, plant ash contains a lot of trace elements, which can be said to be better in terms of fertilizer efficiency.
The reason why potash fertilizer can increase the yield of sweet potato has been introduced before, one of the key points is that potassium can promote the synthesis and accumulation of starch, making potato blocks expand and accumulate more starch.
In rural areas, there are a wide range of sources of plant ash, after the burning of soil stoves in rural areas, basically every household will have a lot of plant ash, low cost and high fertilizer efficiency, naturally favored by everyone.
Here is science to promote agriculture, welcome to add attention, with you to grow knowledge.
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