Composite biological stimulant for delaying senescence and death of leaves in middle and late growth stages of peanuts

Abstract

The invention discloses a composite biological stimulant for delaying senescence and death of leaves in middle and late growth stages of peanuts, and belongs to the technical field of agricultural biotechnology. According to the compound biological stimulant for delaying senescence and death of leaves in middle and late growth stages of peanuts, a plant growth regulator melatonin is used in combination with Fe2O3 nanoparticles or ZnO nanoparticles, so that the action period of the growth regulator can be prolonged, and senescence and death of peanuts can be effectively prevented and controlled.

Description

Technical field [0001] The invention relates to the field of agricultural biotechnology, and more specifically to a compound biostimulant for delaying leaf senescence and death in the middle and late stages of peanut growth. Background technique [0002] In production, peanuts are prone to iron deficiency and yellowing, especially in the middle and late stages of growth, the root system's ability to absorb nutrients becomes weak, and the weather tends to become cold. These comprehensive factors lead to the yellowing and senescence death of peanuts in the field, which directly affects the growth, yield and quality of peanuts. Supplementing iron in the soil to cure yellowing is not only costly, but also iron is easily fixed or lost in the soil or becomes trivalent iron due to soil conditions, which cannot be effectively absorbed by the peanut roots. Ferrous sulfate, which is often used for foliar spraying, is also easily oxidized into trivalent iron by air, resulting in unsatisfac...

AI Technical Summary

Problems solved by technology

Iron supplementation in soil to cure yellowing phenomenon is not only costly, but also iron is easily fixed or lost in the soil or becomes ferric iron due to changes in soil conditions, which cannot be effectively absorbed by peanut roots

Ferrous sulfate is often used in the production of foliar spraying. Ferrous (ferrous iron) is also easily oxidized into ferric iron by air, resulting in unsatisfactory absorption and utilization effects.

Moreover, relying solely on iron supplementation cannot effectively delay the senescence and death of peanut leaves in the middle and late stages of growth.

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