Modified fertilizer and application thereof

Abstract

The invention belongs to the technical field of fertilizer modification and specifically relates to a modified fertilizer and application thereof. The modified fertilizer provided by the invention comprises individually packaged polyether-modified organosilicon surfactant and fertilizer. By using the polyether-modified organosilicon surfactant and the fertilizer cooperatively, dispersity of the fertilizer in soil is improved by the utilization of a hydrophilic group and a hydrophobic group of the polyether-modified organosilicon surfactant, the fertilizer is dispersed on the surface layer, infiltration amount of the fertilizer in the soil is reduced, and the fertilizer is diffused to soil around the plant root to the maximum. Test results of the embodiment show that the modified fertilizeris irrigated in the soil by a drop irrigation method, the fertilizer is centralized in the soil layer of 0-9 cm deep and is less distributed in the soil layer of 12 cm deep, and utilization rate of the fertilizer is high.

Description

technical field [0001] The invention belongs to the technical field of fertilizer modification, and in particular relates to a modified fertilizer and its application. Background technique [0002] The total amount of fresh water resources in my country is about 2.8 trillion cubic meters, accounting for 6% of global water resources. The total amount of fresh water ranks fourth in the world, but the per capita fresh water resources are 2240m 3 , which is only 25% of the world's per capita share; in addition, my country's directly usable freshwater resources only account for about 2.7% of freshwater resources, which cannot meet the needs of agricultural production water consumption. Tension has become one of the inevitable trends in my country's agricultural development. [0003] Drip irrigation is a common way to effectively utilize water resources in water-scarce areas. This irrigation method is to transport water through the whole pipeline, and slowly irrigate in small quan...

AI Technical Summary

Problems solved by technology

[0002] The total amount of fresh water resources in my country is about 2.8 trillion cubic meters, accounting for 6% of global water resources. The total amount of fresh water ranks fourth in the world, but the per capita fresh water resources are 2240m 3 , which is only 25% of the world's per capita share; in addition, my country's directly usable freshwater resources only account for about 2.7% of freshwater resources, which cannot meet the needs of agricultural production water consumption. Tension has become one of the inevitable trends in my country's agricultural development

[0003] Drip irrigation is a common way to effectively utilize water resources in water-scarce areas. This irrigation method is to transport water through the whole pipeline, and slowly irrigate in small quantities in multiple locations, so that the water seepage spreads to the entire soil; Reasonable use leads to water repellency in the soil, which affects the distribution of fertilizer nutrients in the soil. What is more serious, a large amount of chemical fertilizers have begun to infiltrate in some areas, which not only reduces the utilization rate of fertilizers, but also pollutes the groundwater layer.

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