Special saline and alkaline land organic/inorganic compounded fertilizer as well as preparation method and application thereof
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A technology for compound fertilizer and saline-alkali land, which is applied in the field of special organic-inorganic compound fertilizer for saline-alkali land and its preparation, can solve problems such as no solution, and achieve the effects of improving nutrient utilization, promoting root growth, and enhancing soil buffering performance.
Inactive Publication Date: 2018-09-04
湖南慧谷农业生态研究院有限公司
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[0005] For this situation, no effective solution has been proposed in the prior art
Method used
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Embodiment 1
[0035] A preparation method of special organic-inorganic compound fertilizer for saline-alkali land, comprising the steps of:
[0036](1) Preparation of composite biochar: Weigh 50 parts of furfural slag, 12 parts of bagasse, and 40 parts of wood chips, and after drying, crush and mix them evenly, pass through a 100-mesh sieve, put them into a sealed iron box, and heat them in an atmosphere furnace. Before pyrolysis, complete vacuuming before pyrolysis, then pass nitrogen gas for 10 minutes, and pyrolyze at 300°C for 1 hour under anaerobic conditions to obtain composite biochar;
[0037] (2) Preparation of bio-organic fertilizer: Weigh 48 parts of chicken manure, 12 parts of straw, 10 parts of corncobs, 25 parts of cake mixture (wherein the cake mixture is rapeseed meal: soybean meal: sesame meal=3:2 by weight components) : 1), after each component is pulverized, add Wangfa compound agricultural microbial bacterial agent (the manufacturer is Cangzhou Wangfa Biotechnology Resea...
Embodiment 2
[0043] The difference between embodiment 2 and embodiment 1 is:
[0044] Mixture 1: mix composite biochar, bio-organic fertilizer, humic acid substances, furfural residue, improved preparation, and inorganic nutrients in a ratio of 1:1.8:0.1:0.15:0.37:2.13 to obtain mixture 1;
[0045] Mixture 2: mix bio-organic fertilizer, humic acid substances, furfural slag, and water retention additive in a ratio of 1:0.11:0.23:0.175 to obtain mixture 2;
[0046] The ratio of mixture 1 and mixture 2 is 2.38:1.
Embodiment 3
[0048] The difference between embodiment 3 and embodiment 1 is:
[0049] Mixture 1: Mix composite biochar, bio-organic fertilizer, humic acid substances, furfural slag, improved preparation, and inorganic nutrients in a ratio of 1:2:0.1:0.15:0.22:1.3 to obtain mixture 1;
[0050] Mixture 2: mix bio-organic fertilizer, humic acid substances, furfural slag, and water retention additive in a ratio of 1:0.11:0.105:0.16 to obtain mixture 2;
[0051] The ratio of mixture 1 and mixture 2 is 3.12:1.
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Abstract
The invention discloses a special saline and alkaline land organic / inorganic compounded fertilizer as well as a preparation method and application thereof. The compounded fertilizer comprises raw materials, namely a mixture 1 and a mixture 2, wherein the weight ratio of the mixture 1 to the mixture 2 is (1.5-3.5):1; the mixture 1 comprises composite charcoal, a biological organic fertilizer, humicacid substances, furfural residues, an improvement preparation and inorganic nutrients which are mixed according to a certain ratio; the mixture 2 comprises a biological organic fertilizer, humic acid substances, furfural residues and water retention aids which are mixed according to a certain ratio. By adopting the product disclosed by the invention, soil structures can be improved, soil porosity can be improved, soil bulk density can be reduced, contents of organic matters in soil can be increased, the cation exchange amount of the soil can be increased, and the pH value of the soil and thetotal amount of water soluble salts in the soil can be reduced. In addition, the fertilizer has functions of slowly releasing acid substances and nutrients, is capable of activating soil, reducing immobilization of soil upon nutrients and increasing the utilization rate of the nutrients, is capable of continuously and stably improving soil, is free of adverse influence upon environments and plants, and is ecological and environmentally friendly.
Description
technical field [0001] The invention relates to the technical field of agricultural fertilizers for saline-alkali land, in particular to a special organic-inorganic compound fertilizer for saline-alkali land and its preparation method and application. Background technique [0002] Saline-alkali land is widely distributed in the world, from cold, temperate to tropical regions, from America, Europe, Asia to Australia, there are a large number of saline-alkali land, dry, hardened and barren everywhere. China is a country with a large amount of saline-alkali land, ranking third among the top 10 countries with saline-alkali land area. China's saline-alkali land is distributed in 17 provinces including the Northwest, Northeast, North China and coastal regions. The total area of saline-alkali wasteland and saline-alkali land affecting cultivated land exceeds 500 million mu, of which the agricultural development potential accounts for more than 10% of China's total cultivated land...
Claims
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