Special fertilizer for corns in saline and alkaline land

Abstract

The invention relates to the technical field of improvement of saline and alkaline lands and efficient fertilization, and in particular relates to a special fertilizer for corns in a saline and alkaline land. The fertilizer comprises the following components in parts by weight: 24-28 parts of a nitrogen fertilizer, 14-18 parts of calcium superphosphate, 7-9 parts of potassium sulfate, 4-6 parts ofhumic acid and 3-6 parts of an organic fertilizer, wherein the nitrogen fertilizer, calcium superphosphate and potassium sulfate provide three inorganic nutritional elements which are maximum in demand, namely, nitrogen, phosphorus and potassium; the nitrogen fertilizer is a mixture of urea and sulfur coated urea, and the urea and the sulfur coated urea are matched in use, so that the loss of nutrients can be reduced effectively and the utilization ratio of the nutrients is improved; moreover, the labor force needed by additionally applying the nitrogen fertilizer can be reduced, and meanwhile, the environmental pollution caused by residual nutrients can be reduced; the humic acid can improve the utilization ratio of calcium superphosphate; animal manure and soil manure are rich in organic matters, organic zinc and various nutritional elements, can increase the content of organic matters in soil of the saline and alkaline land, and meanwhile can avoid zinc-deficient symptoms of cornseffectively.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land improvement and high-efficiency fertilization, and specifically relates to a special fertilizer for corn in saline-alkali land. Background technique [0002] Corn is an annual monoecious cross-pollinated plant with tall plants and strong stems. It is an important food crop and feed crop, and it is also the crop with the highest total output in the world. Corn has been cultivated in my country for more than 470 years. Good quality, strong adaptability, and rapid development of cultivated area. At present, the sown area of ​​corn in my country has reached about 300 million mu, second only to rice and wheat, and ranks third among food crops. Corn crops are rich in protein and fat. , vitamins, trace elements and cellulose, etc., are veritable high-nutrition foods. Because the saline-alkali soil itself contains too much salt, the corn grown in saline-alkali soil has a soil solution concentrati...

AI Technical Summary

Problems solved by technology

[0002] Corn is an annual monoecious cross-pollinated plant with tall plants and strong stems. It is an important food crop and feed crop, and it is also the crop with the highest total yield in the world. Corn has been cultivated in my country for more than 470 years. Due to its high yield, Good quality, strong adaptability, and rapid development of cultivated area. At present, the sown area of ​​corn in my country has reached about 300 million mu, second only to rice and wheat, and ranks third among food crops. Corn crops are rich in protein and fat. , vitamins, trace elements and cellulose, etc., are veritable high-nutrition foods. Because the saline-alkali soil itself contains too much salt, the corn grown in saline-alkali soil has a soil solution concentration close to or greater than the corn cell solution concentration. According to the principle of plant cell osmosis It is difficult for corn cells to absorb inorganic nutrients and water, resulting in the death of corn due to the lack of inorganic nutrients and water. At present, people in related fields have proposed many methods for improving corn yields in saline-alkali land, but they still have not effectively improved saline-alkali land and high-efficiency. Fertilization is an organically integrated product

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