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Plants that have been born and grown on earth for millions of years have used nutrients from natural materials, such as detritus materials, which are different from fossils that contain minerals and organic matter. Then there are microorganisms to decompose, releasing nutrients for plants. These materials are usually small and unstable in mineral content. But plants still grow and survive until now. Therefore, it can be considered that plants have existed for a long time with natural fertilizers or organic fertilizers that are not high in nutrients.
Thai necessities
Thailand does not have its own chemical fertilizer factory, therefore it is necessary to import from abroad. Currently, we import more than 90% of chemical fertilizers, amounting to 4-5 million tons per year. It's worth more than 2 billion baht. And in some periods, the fertilizer is in short supply, the price is higher, which we cannot control and have to accept the conditions. Fertilizers are the capital burden of more than 20% of farmers and tend to use more as the soil used for cultivation begins to deteriorate (less in minerals and organic matter).Chemical fertilizers are not only expensive but also minerals that are easily lost during application. cause it to be used more But we found that using chemical fertilizers together with organic fertilizers in addition to helping to supplement other minerals. It also makes the loss of chemical fertilizers can be greatly reduced as well.
The law is an obstacle
In Thailand, chemical fertilizer products organic fertilizer and bio-fertilizers (microorganisms). There is a law that manufacturers must obtain a production license and must be registered.
Fertilizer with Department of Agriculture and must strictly comply with the criteria set by law with very low tolerances allowedIn addition, a very high penalty is imposed on manufacturers and sellers (imprisonment of 5-15 years), both for products that are used with plants and do not harm human health. As a result, there is very little development of this group of products. Especially organic fertilizers and bio fertilizers. Although in Thailand we have many materials that are raw materials.
Materials that contain more or less organic matter are still useful in terms of fertilizer. Because it is a source of minerals and energy for microorganisms in the soil to help decompose improve soil structure Helps to digest and fix nutrients for plants Organic matter when decomposed will become humus. Which is a material with high cation exchange (CEC), which is an important property that helps absorb minerals from chemical fertilizers for less loss and more benefits That means, if we mix it with mineral, chemical fertilizers and create a new fertilizer product that combines both chemical and organic fertilizers, it will make mineral fertilizers most effective.
suggestion
1. Organic Fertilizer
Organic fertilizer products should be more relaxed by the law by reducing the level of organic matter. or add criteria for the types of organic fertilizers that can be registered, such as
Grade A = organic matter >20%
Grade B = 15-20% organic matter
Grade C = 10-15% organic matter
and increase the threshold for EC <20ds/m and cancel the Germination Index
2. Organic chemical fertilizers
2.1 N+P+K+OM>20%, but OM must not be less than 5% and must be compound fertilizer only, such as 6-3-3+OM8% or 12-3-0+OM5%.
2.2 Minimum nutrient criteria up to 1%, such as 11-0-1 or 10-1-1.
BCG Economy is a good policy and principle. Especially the Circular Economy, which aims to make use of waste materials in the country to be useful. If we modify the restrictive laws and make them more usable under possible criteria, It will benefit the agricultural sector of Thailand many more.