Special rice fertilizer containing efficient silicon and preparation method of special rice fertilizer

Abstract

The invention discloses a special rice fertilizer containing efficient silicon and a preparation method of the special rice fertilizer, and belongs to the technical field of fertilizers in agricultural production. The fertilizer is prepared from the following raw materials in parts by weight: 40-55 parts of urea, 20-35 parts of calcium superphosphate, 10-25 parts of potassium chloride, 10-20 parts of potassium silicate, 1-5 parts of attapulgite powder, 0.2-1.2 parts of artemisia argyi extract, 0.2-0.8 part of radix peucedani extract and 0.5-1.5 parts of mint extract. The fertilizer disclosed by the invention is reasonable in nutrient matching, satisfies nutrient requirements and absorption characteristics of rice growth, and capable of promoting rice growth, increasing the rice yield, improving the lodging resistance and the insect resistance of the rice and lowering the lodging and insect pest risks. Besides, the traditional Chinese medicine extract in the fertilizer can be used for inhibiting the growth of rice sheath blight disease, rice blast and ustilaginoidea virens and lowering the rice disease harm. The fertilizer is applied once along with soil preparation before rice seedling transplanting, so that the utilization rate of the fertilizer is increased, and the fertilizer-application labor cost and fertilizer cost of the rice farmers are lowered.

Description

technical field [0001] The invention belongs to the technical field of fertilizers in agricultural production, and in particular relates to a rice-specific fertilizer containing high-efficiency silicon and a preparation method thereof. Background technique [0002] Rice is the most important food crop in my country. Studies have shown that 22 kg of silicon is absorbed for every 100 kg of rice grain produced, which is 4.4 times the sum of nitrogen, phosphorus and potassium. High-yielding rice can take away SiO from the soil in one growing season. 2 75-130 kg / mu. SiO in soil 2 The content is very high, but the effective silicon that can be used by plants is only 50-250 mg / kg. Moreover, with the continuous improvement of rice production level and the extension of annual continuous planting time, the silicon content in paddy soil is decreasing, especially in fields where rice is the main crop, the phenomenon of silicon deficiency is more serious. If silicon is lacking during...

AI Technical Summary

Problems solved by technology

If silicon is lacking during the growth and development of rice, the leaves will droop at the seedling stage, the light-receiving posture will deteriorate, the aboveground stem nodes will rot and be prone to lodging during the filling stage, and the functional leaves will die prematurely during the filling stage, resulting in premature rice senescence in the later stage and insufficient grain filling. Reduced thousand-grain weight, reduced yield, and poor quality

[0003] In rice production, partial application of nitrogen fertilizers, lack of attention to the reasonable combination of phosphorus and potassium fertilizers, and improper fertilizer operation and application methods lead to the inability to fully develop the rice yield potential, resulting in low fertilizer utilization rates, increased fertilization costs, and reduced rice planting benefits for rice farmers.