Nutritious soil for small potted watermelons and preparation method thereof

Abstract

The invention provides a nutrient soil for small-sized potted watermelons and a preparation method thereof, including the preparation of lignin, the preparation of composite microcapsules, and the preparation of nutrient soil. By preparing composite microcapsules, the compound fertilizer is wrapped by chitosan-lignin, which avoids the decomposition of compound fertilizer by plant ash, resulting in the loss of nutrients and waste of fertilizer; after lignin and chitosan are blended and compounded, chitosan Sugar makes the network structure of lignin dense and forms a film, which not only has a good wrapping effect, but also has certain gaps to release nutrients; at the same time, the two are connected together by hydrogen bonds, and the reactive sites increase. , Potassium plasma has a better retention effect and plays a certain stabilizing effect. The particle size of the composite microcapsule prepared by the invention is 6-12 μm, and the embedding rate is as high as 71.6%-82.3%.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a nutrient soil for small potted watermelon and a preparation method thereof. Background technique [0002] Watermelon is a well-loved fruit that is refreshing, sweet and thirst-quenching. With the improvement of people's living standards, watermelons are no longer confined to fields and greenhouses, but gradually enter people's lives. Many people plant watermelons on their balconies, not only to experience the fun of watermelon planting, but also to satisfy the needs of both eating and viewing. need. However, the indoor planting environment is limited, with little ventilation and weak light. People have limited energy to take care of watermelons due to their busy work. Therefore, watermelons have a low survival rate, weak roots and seedlings, slow growth and poor taste. [0003] Plant ash is rich in a lot of mineral elements, which can promote rooting, prevent diseases and insects, ...

AI Technical Summary

Problems solved by technology

However, the indoor planting environment is limited, the ventilation is less, the light is weak, and people have limited energy to take care of the watermelon due to their busy work, so the survival rate of the watermelon is low, the root seedlings are weak, the growth is slow, and the taste is not good.

[0003] Plant ash is rich in a large amount of mineral elements, which can promote rooting, prevent diseases and treat insects, and is very helpful to the growth and development of watermelon. However, plant ash is alkaline, and when it is applied together with ammonium nitrogen fertilizer, it will cause nitrogen to volatilize easily and reduce fertilizer efficiency.

However, watermelons have a relatively large demand for nitrogen fertilizers at the germination stage and the seedling stage, but the prior art has not solved the problem that the compounding of plant ash and fertilizer is easy to cause waste and easy loss of nutrients. Therefore, it is necessary to prepare an improved The nutrient soil of permanent compound fertilizer solves the problems existing in the prior art and meets the growth needs of small watermelons

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