Organic/inorganic salt and alkali resistant long-acting corn fertilizer

Abstract

The invention relates to an organic/inorganic salt and alkali resistant long-acting corn fertilizer, which mainly contains the following active ingredients in percentage by weight: 10 to 28 percent of nitrogen, 5 to 20 percent of phosphorus, 5 to 18 percent of potassium, 10 to 25 percent of sulfur, 5 to 10 percent of amino acid, 1 to 10 percent of humic acid, 1 to 5 percent of medium trace elements, 1 to 5 percent of sustained release agent and the balance of adhensive. A nitrogen fertilizer may be at least one of urea, ammonium chloride and ammonium sulfate. A phosphatic fertilizer may be at least one of calcium superphosphate, monoammonium phosphate, diammonium phosphate and double superphosphate. A potash fertilizer may be at least one of potassium sulfate and potassium chloride. The amino acid may be an amino acid organic fertilizer or corn processing leftovers. The medium trace elements comprise 0 to 1.5 percent of zinc, 0 to 3 percent of magnesium, 0 to 1 percent of iron, 0 to 1 percent of silicon, 0 to 0.5 percent of calcium and 0 to 0.5 percent of molybdenum. The adhesive is clayey soil. The fertilizer of the invention is a composite fertilizer combining chemical fertilizers and organic fertilizers. The fertilizer of the invention contains all nutrients, combines organic and inorganic matters, acts for a long term after being applied once and can improve soil of saline and alkaline lands and greatly improve corn yield.

Description

technical field [0001] The invention relates to an agricultural fertilizer, in particular to an organic and inorganic salt-alkali resistant long-acting corn special fertilizer. Background technique [0002] According to relevant data, there are 954.38 million hectares of saline-alkali land in the world, while my country has 99.13 million hectares, accounting for 10.39% of the world's saline-alkali land. At present, the main methods of transforming saline-alkali land in our country and even in the world are, one is to use a large amount of fresh water resources to flush, and the other is to select and cultivate saline-alkali-tolerant crops, that is, biological improvement. These two methods have both wasted a large amount of water resources, wasted manpower, financial resources and time again. [0003] In the past 30 years, because people only paid attention to increasing grain production, but ignored the improvement of soil fertility and soil fertility, and relied on a larg...

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Problems solved by technology

These two methods not only waste a lot of water resources, but also waste manpower, financial resources and time

[0003] In the past 30 years, because people only paid attention to increasing grain production, but ignored the improvement of soil fertility and soil fertility, and relied on a large amount of chemical fertilizers, this also aggravated soil compaction, soil aggregate structure was destroyed, and soil was seriously polluted. As for not applying chemical fertilizers, the yield per unit area is extremely l

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