An exogenous additive, cultivation method and application for reducing tomato CD absorption

A cultivation method and an additive technology, which are applied in the field of exogenous additives for reducing tomato Cd absorption, can solve the problems of reducing tomato Cd exogenous additives, plant Cd side effects, etc., and achieve the goal of alleviating tomato toxicity, increasing photosynthetic rate, and alleviating oxidative damage Effect

Active Publication Date: 2021-08-17
NORTHWEST A & F UNIV
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Problems solved by technology

[0005] In view of the defects and deficiencies in the prior art, the object of the present invention is to provide an exogenous additive, a cultivation method and application for reducing the absorption of tomato Cd, and to solve the technical problem of side effects caused by the existing ways of controlling Cd accumulation in plants

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  • An exogenous additive, cultivation method and application for reducing tomato CD absorption
  • An exogenous additive, cultivation method and application for reducing tomato CD absorption
  • An exogenous additive, cultivation method and application for reducing tomato CD absorption

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Embodiment 1

[0034] This example provides a kind of exogenous additive, cultivation method and application that reduce tomato Cd absorption, and exogenous additive is used to reduce the Cd absorption when cultivating tomato in Cd-contaminated soil, including actinomycetes, potassium humate, wheat Rice stone and red mud, in 100 parts by mass of soil, the added amount of actinomycetes is 0-0.25%, the added amount of potassium humate is 0-0.55%, the added amount of medical stone is 0-1.5%. The addition amount of mud is 0-0.25%, and the addition amount of actinomycetes, medical stone and red mud is 0 at the same time.

[0035] Specifically: in 100 parts by mass of soil, the added amount of actinomycetes is 0-0.25%, the added amount of potassium humate is 0-0.55%, and the added amount of actinomycetes and potassium humate is not 0% ;

[0036] Or, in 100 parts by mass of soil, the addition of medical stone is 0.1-1.5%, the addition of red mud is 0.1-0.25%, and the addition of medical stone and ...

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Abstract

The invention provides an exogenous additive for reducing tomato Cd absorption, a cultivation method and its application. The exogenous additive is used to reduce the Cd absorption when cultivating tomato in Cd-contaminated soil, including actinomycetes, potassium humate, wheat rice stone and red mud, in 100 parts by mass of soil, the added amount of actinomycetes is 0-0.25%, the added amount of potassium humate is 0-0.55%, the added amount of medical stone is 0-1.5%, and the added amount of red mud is 0-0.25%. The addition amount of said actinomycetes, medical stone and red mud is 0-0.25% at the same time. The present invention uses exogenous additives to treat the soil, by reducing the percentage of exchangeable Cd in the soil, increasing soil pH, increasing the activity of tomato antioxidant enzymes, increasing the photosynthetic rate of tomato, thereby reducing the accumulation of Cd in tomato fruit by 12.91%, It alleviated the inhibition of cadmium stress on tomato growth and increased tomato yield.

Description

technical field [0001] The invention belongs to the technical field of vegetable planting, and relates to an exogenous additive for reducing tomato Cd absorption, a cultivation method and application. Background technique [0002] Cadmium is a non-essential element for plant growth. It is highly mobile, highly toxic and persistent in the environment. It is easily absorbed by plants, causing toxicity, and endangering human health through the enrichment of the food chain. Plants planted on cadmium-contaminated soil will absorb cadmium in the soil through the root system, and accumulate in different organs through internal transport, causing toxic effects on plants. This toxic effect on plants will gradually increase with the increase of time, Cd concentration and other factors. The toxicity of cadmium to plants is mainly manifested in that cadmium can inhibit plant growth, cause plant nitrogen assimilation, reduce photosynthesis, reduce the absorption of nutrient elements, di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40A01B79/02A01G22/05C09K101/00C09K109/00
CPCA01B79/02A01G22/05C09K17/40C09K2101/00C09K2109/00
Inventor 李海兰吕金印蒲鹏唐燕
Owner NORTHWEST A & F UNIV
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