Multi-element water soluble liquid fertilizer and preparation method thereof
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A water-soluble, liquid fertilizer technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of reducing the solubility and permeability of water molecules, and achieve the effects of improving fertilizer utilization, low price, and easy operation
Inactive Publication Date: 2014-10-01
ANSTEEL GRP MINING CO LTD
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In addition, in the prior art, the use of fulvic acid as a chelating agent can only chelate the cations in the liquid fertilizer, and the hydrogen bonds between the solvent water molecules are formed by hydrogen bonding of 18-36 water molecules into spherical water clusters form, thereby greatly reducing the solubility and permeability of water molecules
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Embodiment 1
[0023] Embodiment 1: Weigh 21.5 grams of urea, 11.8 milliliters of phosphoric acid (19.94 grams), mix and acidify, add 1.2 grams of boric acid, 1.3 grams of sodium molybdate and 40.0 grams of dipotassium hydrogen phosphate, mix slightly, then add 50 milliliters of water, and then Add 0.2 g (0.2 ml) of wood vinegar, stir to dissolve, add 8.2 g of fulvic acid, continue to stir, to dissolve, add water to 100 ml, and it is ready. Among them, N:P 2 o 5 :K 2 O=10.0:24.7:16.5, total nutrition ≥500 g / L, trace elements ≥5 g / L, fulvic acid ≥80 g / L.
Embodiment 2
[0024] Embodiment 2: Weigh 32.0 grams of urea, 4.5 milliliters (7.60 grams) of phosphoric acid, mix and acidify, add 1.0 grams of boric acid, 1.0 grams of sodium molybdate and 45.0 grams of dipotassium hydrogen phosphate, mix slightly, then add 50 milliliters of water, and then Add 0.1 g (0.1 ml) of wood vinegar, stir to dissolve, add 9.3 g of fulvic acid, continue to stir, to dissolve, add water to 100 ml, and it is ready. Among them, N:P 2 o 5 :K 2 O=14.9.:18.6:18.5, total nutrition ≥500 g / L, trace elements ≥4 g / L, fulvic acid ≥90 g / L.
Embodiment 3
[0025] Example 3: Weigh 22.0 grams of urea, 5.0 milliliters (8.40 grams) of phosphoric acid, mix and acidify, add 1.0 grams of boric acid, 0.6 grams of sodium molybdate and 50.0 grams of dipotassium hydrogen phosphate, mix slightly, then add 50 milliliters of water, and then Add 0.2 g (0.2 ml) of wood vinegar, stir to dissolve, add 7.8 g of fulvic acid, continue to stir, to dissolve, add water to 100 ml, and it is ready. Among them, N:P 2 o 5 :K 2 O=10.3.:20.7:20.6, total nutrition ≥500 g / L, trace elements ≥3 g / L, fulvic acid ≥75 g / L.
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Abstract
The invention discloses a multi-element water soluble liquid fertilizer, which is characterized by being prepared from the following raw materials in parts by weight: 10-32.0 parts of urea, 7.6-19.9 parts of phosphoric acid, 1.0-1.2 parts of boric acid, 0.4-1.3 parts of sodium molybdate, 40.0-55.0 parts of dipotassium phosphate, 6.4-9.3 parts of fulvic acid and 0.1-0.2 part of wood vinegar. The preparation method adopts the urea, the phosphoric acid and the dipotassium phosphate as main raw materials; in the prepared multi-element water soluble liquid fertilizer, P2O5 is more than or equal to K2O in amount; the boric acid and the sodium molybdate are taken as trace elements, and the soluble fulvic acid serves as a chelating agent; moreover, by adding the wood vinegar to a hydrosolvent, water molecule hydrogen bonds are cut off to form a cluster of 5 water molecules, thus greatly enhancing solubility and permeability of the hydrosolvent, and the fertilizer can be used as such multifunctional additives as a wetting agent. Besides advantages of a common multi-element water soluble liquid fertilizer, the fertilizer can also meet a demand of planting rice on improved saline land. Such soluble nutrients as N, P, K<+>, Mg<2+> and Ca<2+> can be provided to meet a demand of rice growth, so that growth of rice on the saline land is vigorous.
Description
technical field [0001] The invention relates to a multi-element water-soluble liquid fertilizer and a preparation method thereof. Background technique [0002] In the process of agricultural modernization, water-soluble liquid fertilizers are the general trend of fertilization automation and water and fertilizer integration, and they are an important type of fertilizers for three-dimensional fertilization in modern agriculture. For example, Chinese patent 201210010671.7 discloses a multi-element water-soluble liquid fertilizer, which is prepared from the following raw materials: water, urea, dipotassium hydrogen phosphate, disodium edetate, boric acid and citric acid in a certain weight percentage. This fertilizer does not produce P 2 o 5 ≥K 2 The formula of O is not suitable for growing rice in saline-alkali land. [0003] At present, in order to standardize fertilizer quality, scientific production and sales, the national government has promulgated the standard NY1107-...
Claims
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