Acidity-adjusting nutritional agent for dry rice seedling raising bed soil

Abstract

The invention discloses an acidity-adjusting nutritional agent for dry rice seedling raising bed soil and relates to the rice seedling raising technique. The acidity-adjusting nutritional agent is prepared from the following raw materials in parts by weight: 60-70 parts of fermented rice husk, 4-6 parts of 60% dilute sulfuric acid, 12-17 parts of ammonium sulfate, 12-17 parts of calcium superphosphate, 1-2 parts of potassium chloride and 0.5-0.8 part of zinc sulfate; a preparation method of the acidity-adjusting nutritional agent comprises the steps of (1) preparing materials, (2) performing acid treatment and (3) mixing. The acidity-adjusting nutritional agent is capable of either adjusting the acidity or enhancing the fertility, and also capable of improving the physicochemical properties of the bed soil; besides, the preparation method of the acidity-adjusting nutritional agent has the characteristics of wide raw material source, simple process, low cost, suitability for production in south of China; the acidity-adjusting nutritional agent is applicable to dry-raising machine transplanted seedlings and hand transplanted seedlings of early season rice, middle-season rice and late-season rice all over the country.

Description

technical field [0001] The invention relates to rice seedling raising technology in the technical field of agricultural planting, in particular to an acid-regulating nutrient for rice seedling bed soil in dry seedling raising. Background technique [0002] The popularization of dry rice seedling raising is to meet the needs of mechanized rice transplanting and to cultivate strong rice seedlings. Relevant studies have shown that rice seedlings are adapted to grow in an acidic soil environment, and acidifying the rice seedling bed soil can improve the nutritional status and environmental conditions of the bed soil, thereby effectively preventing the occurrence of rice seedling blight. Therefore, adjusting the bed soil to an appropriate acidity is a key technology for cultivating strong seedlings and ensuring high-quality and high-yield rice. [0003] At present, the acid-regulating substances used in rice bed soil acid-regulating are mainly inorganic materials such as sulfuri...

AI Technical Summary

Problems solved by technology

Although this type of acid-adjusting agent has the advantages of stable acid-adjusting, not easy to leaching, and can increase the content of organic matter in the bed soil and the nutrients required for the growth of rice seedlings, its materials are limited, and it is not suitable for the preparation of acid-adjusting agents for rice seedlings in the south ( Because my country's furfural manufacturers are mainly distributed in the northern corn producing areas of Hebei, Shanxi, Henan, Shandong, Jilin, Liaoning, Heilongjiang and other provinces)

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