Soybean straw compound fertilizer for salinized soil

Abstract

The invention discloses a soybean straw compound fertilizer for salinized soil. The soybean straw compound fertilizer is prepared from the following components in proportioning: 1000 parts of dry straws, 2000 parts of biogas slurry, 200-300 parts of urea, 60-80 parts of monopotassium phosphate, 20-30 parts of ammonium molybdate, 150-200 parts of disodium octoborate tetrahydrate, 80-100 parts of manganese chloride, 100-120 parts of zinc sulfate, 12-15 parts of Trichodermaspp, 12-20 parts of Aspergillusflavus, and 20-30 parts of Polyangiumcellulosum. The preparation of the compound fertilizer comprises the following steps of: selecting the biogas slurry; implementing anaerobic fermentation; implementing aerobic fermentation; adding ammonium molybdate, disodium octoborate tetrahydrate, manganese chloride and zinc sulfate in a fermentation tank and evenly mixing to obtain a mixture; and bagging for packaging the mixture.

Description

technical field [0001] The invention relates to a soybean fertilizer, in particular to a soybean straw compound fertilizer suitable for salinized soil. Background technique [0002] Cultivated soybeans are moderately salt-tolerant plants. Under saline conditions, their yields decrease, and salt-sensitive varieties are more affected by salt stress than salt-tolerant varieties. At the same time, soybeans require more fertilizers, and long-term single application of chemical fertilizer , will cause long-term problems such as soil compaction, nutrient imbalance, poor physical properties, etc., the production capacity will drop significantly, and the fertilizer efficiency of organic fertilizers will be slow. , so as not to affect the cultivated land; although this treatment method is simple, it seriously damages the beneficial microorganisms in the soil and is not conducive to the growth of crops; in addition, the carbon in the straw accounts for the vast majority, followed by po...

AI Technical Summary

Problems solved by technology

[0002] Cultivated soybeans are moderately salt-tolerant plants. Under saline conditions, their yields decrease, and salt-sensitive varieties are more affected by salt stress than salt-tolerant varieties. At the same time, soybeans require more fertilizers, and long-term single application of chemical fertilizer , will cause long-term problems such as soil compaction, nutrient imbalance, poor physical properties, etc., the production capacity will drop significantly, and the fertilizer efficiency of organic fertilizers will be slow. , so as not to affect the cultivated land; although this treatment method is simple, it seriously damages the beneficial microorganisms in the soil and is not conducive to the growth of crops; in addition, the carbon in the straw accounts for the vast majority, followed by potassium, silicon, calcium, magnesium, and sulfur , phosphorus, and the products after incineration mainly include CO 2 , CO, SO 2 , NO 2 and N 2 O, these harmful gases have caused serious environmental pollution after entering the atmosphere; if these straws are composted and returned to the field, they will become rich organic fertilizers to fertilize the soil and improve soil properties; microbial degradation of straw cellulose is through secretion into the cell External free cellulase, which degrades cellulose with hydrolase mechanism and oxidase mechanism; the use of microorganisms can finally decompose cellulose into CO 2 and H 2 0, and a large amount of bacterial protein can be produced through the growth of microorganisms themselves, so the use of microbial methods to treat straw can greatly improve its nutritional value