Nutritional combined fertilizer applicable to acidified soil and special for solanaceous vegetables and application method thereof

Abstract

The invention relates to nutritional combined fertilizer applicable to acidified soil and special for solanaceous vegetables and an application method thereof. The nutritional combined fertilizer is prepared from, by weight, 150-270 parts of a soil acidification modifier, 700-1350 parts of base fertilizer, 164-492 parts of seedling strengthening fertilizer and 279-1066 parts of fruit swelling fertilizer. By applying the soil acidification modifier, physiological alkaline or neutral inorganic fertilizer and organic fertilizer, the requirements of the solanaceous vegetables in different growth stages for nutriment are met, the soil acidification effect of the solanaceous vegetable protected land is reduced from the source, and the soil sustainable production capacity is enhanced.

Description

technical field [0001] The invention relates to a special nutritional set fertilizer for solanaceous facility vegetables suitable for acidified soil and an application method thereof, which belongs to the technical field of fertilizers. Background technique [0002] Since the 1980s, China's agricultural production has entered a period of rapid development, feeding 21% of the world's population with 8% of the world's land. However, the model of relying on intensive agricultural production to increase crop yield has greatly accelerated the natural acidification process of farmland soil. In just over 20 years in China, the pH of the plow layer soil dropped by 0.13 to 0.80 units, which is a change process that would take hundreds or even thousands of years to complete under natural conditions. Soil acidification leads to poor growth of crops, followed by reduced yield and susceptibility to pests and diseases. The essential problem is that there are too many acid cations in the ...

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Problems solved by technology

[0006] However, the above-mentioned patent documents are all trying to solve the problem from the soil conditioner, while ignoring the control of the source of soil acidification in the agricultural production process.

At present, most of the nitrogen, phosphorus, and potassium fertilizers in China's chemical fertilizer market are physiologically acidic fertilizers. Although a large amount of alkaline amendments are applied before crop planting, the application of a large amount of physiologically acidic fertilizers in the later stage will not change the process of rapid soil acidification in the end.