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A base fertilizer, sweet potato technology, applied in the application, fertilization device, fertilizer mixture and other directions, can solve the problems of lack of slow release performance, affecting the growth of sweet potato, insufficient potassium supply, etc., to increase porosity, improve sweetness, and improve The effect of starch content
Inactive Publication Date: 2012-07-04
VEGETABLE RES INST OF SHANDONG ACADEMY OF AGRI SCI
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In addition, sweet potatoes have different requirements for potassium fertilizers at different growth stages. Because the fertilizer does not have slow-release properties, potassium is excessive in the early growth stage of sweet potatoes, resulting in waste; and in the tuber expansion stage of sweet potatoes, the
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Embodiment 1
[0022] Take 100kg of sawdust, soak in 500kg of 1-2% hydrochloric acid solution by weight for 10-15 hours, take out the sawdust, and dry at 50-60°C;
[0023] Take 30kg of compound amino acids, 35kg of humic acid, 65kg of potassium dihydrogen phosphate, 5kg of sodium selenite, 5kg of zinc sulfate and 5kg of ferrous sulfate and dissolve them in 500kg of water to form a completely dissolved mother liquor;
[0024] The dried sawdust is soaked in the mother liquor for 1-2 hours, the sawdust is taken out, and dried at 30-40°C to obtain the sweet potato base fertilizer of the present invention.
Embodiment 2
[0026] Take 100kg of sawdust, soak in 600kg of 1-2% hydrochloric acid solution by weight for 10-15 hours, take out the sawdust, and dry at 50-60°C;
[0027] Get 25kg of compound amino acids, 30kg of humic acid, 60kg of potassium dihydrogen phosphate, 5kg of sodium selenite, 5kg of zinc sulfate and 5kg of ferrous sulfate and dissolve them in 500kg of water to form a completely dissolved mother liquor;
[0028] The dried sawdust is soaked in the mother liquor for 1-2 hours, the sawdust is taken out, and dried at 30-40°C to obtain the sweet potato base fertilizer of the present invention.
Embodiment 3
[0030] Take 100kg of sawdust, soak in 700kg of 1-2% hydrochloric acid solution by weight for 10-15 hours, take out the sawdust, and dry at 50-60°C;
[0031] Get 35kg of compound amino acids, 40kg of humic acid, 70kg of potassium dihydrogen phosphate, 5kg of sodium selenite, 5kg of zinc sulfate and 5kg of ferrous sulfate and dissolve them in 500kg of water to form a completely dissolved mother liquor;
[0032] The dried sawdust is soaked in the mother liquor for 1-2 hours, the sawdust is taken out, and dried at 30-40°C to obtain the sweet potato base fertilizer of the present invention.
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Abstract
The invention relates to a fertilizer for plants, and especially relates to a base fertilizer for sweet potatoes. In order to solve the production problems of excess nitrogen during current sweet potato plantation process, and severe potassium deficiency during tuber expansion stages, the invention provides a base fertilizer for sweet potatoes. The preparation method of the base fertilizer for sweet potatoes provided by the invention comprises the following steps: putting sawdust treated by hydrochloric acid in mother liquor prepared by effective components, fully soaking, and drying to obtain the product. The effective components of the mother liquor comprise, by weight, 5-8 parts of amino acids, 5-8 parts of humic acids, 10-15 parts of potassium dihydrogen phosphate, 1 part of sodium selenite, 1 part of zinc sulfate, and 1 part of ferrous sulphate. The potassium content of the base fertilizer for sweet potatoes provided by the invention is 1.5-2 times as high as the nitrogen content, which accords with the condition that the potassium content is 1.57 times as high as the nitrogen content in sweet potatoes; the base fertilizer has good slow release performance, and can provide potassium for a long time.
Description
technical field [0001] The invention relates to a fertilizer for plants, in particular to a base fertilizer for sweet potatoes. Background technique [0002] Sweet potato is one of the food crops in the north of my country. It has the advantages of strong adaptability, drought tolerance, less pests and diseases, and high yield. It is an ideal high-efficiency crop. [0003] According to analysis, every 500 kg of fresh sweet potatoes contains 1.75 kg of nitrogen, 0.9 kg of phosphorus, and 2.75 kg of potassium. Therefore, the main components required by sweet potatoes are the most potassium, followed by nitrogen, and the least phosphorus. Potassium can promote the growth of tubers, increase starch content, and has the advantage of storage resistance. [0004] In recent years, with the increase in the amount of nitrogen fertilizer, the input of the three elements of nitrogen, phosphorus and potassium has been seriously out of balance, mainly manifested in the excess of nitrogen...
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IPC IPC(8): C05G3/00
Inventor 汪宝卿张立明王庆美解备涛董顺旭
Owner VEGETABLE RES INST OF SHANDONG ACADEMY OF AGRI SCI
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