A kind of acid-regulating nutrient agent for paddy rice seedling 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 a rice seedling raising technology in the field of agricultural planting technology, in particular to an acid-regulating nutrient used in the soil of the bed soil of rice dry raising seedlings. Background technique [0002] The promotion of dry-raised rice seedlings is to meet the needs of mechanized planting of rice seedlings, as well as the need to cultivate strong rice seedlings. Relevant studies have shown that rice seedlings are adapted to grow in an acidic soil environment, and acidification of the rice nursery bed soil can improve the nutritional status and environmental conditions of the bed soil, thereby effectively preventing the occurrence of rice seedling wilt. 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-adjusting substances used in the acid adjustment of paddy bed soil are main...

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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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