Rice leaf fertilizer capable of increasing yield and reducing cadmium and using method of rice leaf fertilizer

Abstract

The invention relates to the fields of fertilizers and rice planting and specifically relates to a rice leaf fertilizer capable of increasing the yield and reducing cadmium. The rice leaf fertilizer comprises the following raw materials in parts by mass: 10-20 parts of EDDHA iron, 5-10 parts of urea, 1-5 parts of potassium nitrate, 1-5 parts of stabilizer, 0.5-2 parts of indoleacetic acid, 0.1-1 part of monopotassium phosphate, 0.1-0.5 part of sodium borate and 0.1-1 part of magnesium sulfate. The rice leaf fertilizer provided by the invention is obtained by multi-year repeated proportioning and experimenting and is capable of making up defects of an existing leaf fertilizer, increasing the content of an iron element in rice while effectively increasing the yield of rice and also remarkably reducing the content of a cadmium element as a heavy metal in the rice so as to have an obvious effect on increasing the yield and improving the quality of the existing rice.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a rice foliar fertilizer for increasing production and reducing cadmium and its application method. Background technique [0002] Rice is one of the important economic crops in China, and more than 700 million people in China depend on rice as a staple food. Rice can not only absorb the required nutrients from the soil through the root system, but also directly absorb exogenous substances such as air, nutrients and pesticides through the leaves. Foliar fertilizer is a type of fertilizer that applies nutrients to rice leaves and exerts basic functions through the absorption of leaves. Rice leaves have upper and lower layers of epidermis, which are composed of epidermal cells. There are cuticles and waxes on the outside of the upper epidermal cells. It can protect the mesophyll cells under the epidermis to perform photosynthesis and respiration functions, and not be affected b...

AI Technical Summary

Problems solved by technology

The technology and application of rice foliar fertilizer breaks the traditional method of soil root fertilization, which has important production significance for rice planting. However, the application of ordinary foliar fertilizer in cadmium-contaminated areas may not bring about a significant increase in rice production. It may even promote the absorption of heavy metal cadmium by rice, leading to an increase in the content of cadmium in rice, which will eventually aggravate food safety risks

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