Selenium-rich pepper culture substrate and preparation method thereof

Abstract

The invention discloses a selenium-rich pepper culture substrate and a preparation method thereof. The selenium-rich pepper culture substrate is prepared from, by weight, 25-35 parts of soil, 20-40 parts of decomposed cow dung, 15-25 parts of sand, 10-30 parts of decomposed mango stalks and 10-35 parts of water. The selenium-rich pepper culture substrate and the preparation method thereof have theadvantages that the adopted soil and sand themselves contain a certain amount of selenium, and after rational proportioning, a selenium fertilizer does not need to be added exogenously, so that the selenium content of pepper fruits can be increased; the decomposed cow dung and the decomposed mango stalks are used as the raw materials, the maximum adding proportion can reach 60%, the problems thatwaste cow dung and mango stalks are large in amount and not easy to treat are effectively solved, the resource utilization rate is increased, a polymer of linoleic acid and diethylenetriamine bipolymer is added, and the absorption of selenite and selenate by pepper can be increased simultaneously under the neutral condition.

Description

technical field [0001] The invention belongs to the technical field of capsicum cultivation, and in particular relates to a selenium-enriched capsicum cultivation substrate and a preparation method thereof. Background technique [0002] Capsicum is an annual or perennial herb native to tropical regions of Central and South America. Pepper is one of the main vegetable crops in our country. It can be eaten as a vegetable or as a seasoning material on our daily table. At the same time, pepper is deeply loved by the people because of its rich protein, carotene, vitamins, selenium and other trace elements. Selenium is an essential trace element for human body and animals. Once the human body lacks selenium, it will lead to decreased immunity, dizziness, cardiovascular disease, diabetes, liver disease and other diseases. At present, 72% of the regions in my country are deficient in or less than selenium, and the selenium content of the crops grown is also low, so humans and anim...

AI Technical Summary

Problems solved by technology

Adding selenium fertilizer can indeed increase the selenium content of fruits, but currently the price of selenium fertilizer is relatively expensive in the market. If too much selenium fertilizer is added, it will undoubtedly increase the cost of pepper planting

The main forms of selenium absorbed by plants are selenite, selenate and organic selenium; selenate mainly exists in alkaline and oxidizing conditions, and selenite mainly exists in acidic to neutral soils. Therefore, no matter Whether it is acidic soil or alkaline soil, selenium cannot be fully absorbed and utilized by plants in the soil, which is also the main reason why plants cannot effectively absorb selenium in soil

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