Special organic fertilizer for sandy soil and preparation method and application thereof

Abstract

The invention discloses a special organic fertilizer for sandy soil and a preparation method and application thereof. The organic fertilizer is prepared from the following components: 80 to 85 parts of reinforced compost matured material, 5 to 9 parts of amino acid liquid, 3 to 6 parts of potassium fulvate, 3 to 5 parts of montmorillonite, 0.5 to 1 part of gypsum powder and 0.2 to 0.4 part of magnesium carbonate. The reinforced compost matured material is obtained by the following method: mixing 110-130 parts of pig manure, 50-65 parts of straw, 20-30 parts of soybean meal, 0.3-0.6 part of sulfur and 1.5-2.5 parts of calcium superphosphate, adjusting the water content to 55-60%, and performing composting fermentation; according to the special organic fertilizer, the content of organic nitrogen and potassium nutrients is increased by 5% or above, the release rule of the organic nitrogen and potassium nutrients coincides with the fertilizer requirement rule of scallions and garlics, the effective sulfur content is increased by 0.4% or above, and the special quality of the scallions and garlics is improved; the organic fertilizer effectively reduces loss of nitrogen and potassium nutrients in sandy soil on the premise of stable yield or yield increase of garlic and onions, effectively reduces application of more than 40% of chemical fertilizer, and is easy to popularize and apply in sandy soil.

Description

technical field [0001] The invention relates to the field of organic fertilizers, in particular to a special organic fertilizer for sandy soil and its preparation method and application. Background technique [0002] Onion and garlic vegetables (such as garlic and onion) are important open-field vegetables in my country, and are widely planted in Hebei, Henan, Jiangsu, Shandong and other places. This kind of vegetable crops is resistant to storage and transportation, has a long supply period, and has a wide variety of processed products. It plays an important role in ensuring a balanced annual supply of vegetables, and plays an important role in increasing agricultural efficiency in production areas, increasing farmers' income, and rural economic and social development. [0003] Sandy soil is better for onion and garlic vegetables, because sandy soil is loose and breathable, and the temperature rises quickly, which is conducive to the growth and development of bulbs. Its ma...

AI Technical Summary

Problems solved by technology

At present, special fertilizers with high organic nitrogen and potassium content and nitrogen and potassium nutrient release cycle matching the crop growth cycle have not been reported for germplasm and onion and garlic vegetables (such as garlic and onions) in sandy soil.

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