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Anonymous users2024-02-15The main component of plant ash is potassium carbonate (K Co) with a relative molecular weight of 138. Grass ash fertilizer is the ash of plants after burning, so it is the mineral element contained in all plants, and almost all plant ash contains it. Among them, the most abundant is potassium, which generally contains 6 12% potassium, of which more than 90% is water-soluble and exists in the form of carbonate; followed by phosphorus, which generally contains; It also contains calcium, magnesium, silicon, sulfur and micronutrients such as iron, manganese, copper, zinc, boron, molybdenum, etc.
The nutrient content of ash of different plants is different, and the potassium content of sunflower straw is the highest (see table for details). When the same amount of potassium was applied to plant ash, the fertilizer efficiency was better than that of chemical potassium fertilizer. Therefore, it is a kind of inorganic farm fertilizer with wide range, low cost, complete nutrients and obvious fertilizer efficiency.
The effect of plant ash on plants, promote seed germination, after the forest seeds are sown, cover the plant with plant ash centimeters, which can increase the soil temperature, maintain a loose and aeration state, promote the germination of seeds in advance, and the seedlings that grow are neat and robust, and the seedling rate is high. Promote rooting, in seedling transplanting, use plant ash with organic fertilizer as base fertilizer, or mix 5% 20% plant ash with nutrient soil when preparing nutrient soil, which can not only increase the effective nutrients of base fertilizer and nutrient soil, promote root growth, but also reduce the effect of pests and diseases. To prevent leaf fall, spray 10% plant ash leaching solution (10 kg of fresh plant ash and 100 kg of clean water fully stirred, let stand for 14 16 hours after filtration, slag removal and clarification can be sprayed) as supplementary nutrients, can improve the vitality of leaves, prevent early leaf fall, enhance photosynthesis, and promote the beauty of flowers and fruits.
To improve the quality, in addition to containing potassium, calcium and other macronutrients, plant ash also contains iron, magnesium and other trace elements, and has a quick effect, is a high-quality foliar fertilizer. Spraying 50% 80% plant ash leachate on the foliar surface before and after flowering can promote the greening of branches and leaves, enhance photosynthesis, reduce flower and fruit shedding, promote the colorful color of flowers and fruits, prolong the ornamental period and improve fruit quality.
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Anonymous users2024-02-14Dust removal ash enters the soil through various routes, which not only contaminates the soil, but also has a huge impact on the growth of plants. The soil culture experiments of soybean and mung bean seedlings were carried out after the flue gas dust removal ash of high-zinc coal-fired boiler was mixed with sandy loam soil, and the effect of flue gas dust removal ash of coal-fired boiler on the growth of soybean seedlings was studied. The results of the test showed that:
The addition of dust removal ash can significantly affect the growth of seedlings, and its effect on the growth of bean seedlings is related to the composition and concentration of high zinc dust removal ash itself, and the application of low concentration of high zinc dust removal ash has a significant effect on the fresh weight, dry weight, plant height and root growth of soybean seedlings, while excessive concentration has an inhibitory effect.
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Anonymous users2024-02-13The application rate of fly ash is controlled at 60 600 t hm2, which will not cause soil and grain pollution, and can improve the physical, chemical and biological properties of soil, which is conducive to the transformation of nutrients. After the fly ash is magnetized, 1The application rate of T HM2 can achieve the best effect of soil modification and yield increase.
Based on the analysis of the physical and chemical properties of fly ash, this paper discusses the effects of fly ash on soil and crop growth, which is a waste discharged from coal-fired factories and a potential resource to be exploited. According to domestic and foreign reports, fly ash agricultural investment is the most economical, the lowest cost, is an important way to develop and utilize, but the adverse effects of harmful substances in fly ash on soil and crop growth have also attracted great attention. Therefore, how to rationally use fly ash in agriculture is an important issue worth discussing.
At the same time, agricultural technologies to reduce the adverse effects of harmful substances in fly ash on soil and crops are also proposed.
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Anonymous users2024-02-121. Coal ash contains all the key elements that plants need, except for nitrogen, and organic carbon.
2. Coal ash can replace lime to use (coal ash contains calcium oxide, which may be why coal ash is alkaline and fireless), and can not replace organic fertilizers and chemical fertilizers, and the comprehensive use of coal ash and organic fertilizers and chemical fertilizers can reduce the uptake of heavy metals in coal ash by plants, and can also reduce the use of chemical fertilizers, thereby reducing the pollution of the annular staring liquid environment.
3. Coal ash can be bucketed to improve the soil that is easy to lose. The use of phytoremediation soils can reduce the circulation of toxic substances in coal ash.
4. Replace calcium oxide, thereby reducing carbon dioxide emissions.
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I don't know if it's important But you can only say that they are all equally important, but because they are related to the physiological characteristics of plants, it is not and does not exist that no one is important, it can only be said that they promote each other, and what I said downstairs is also very right, Nitrogen, phosphorus and potassium are large elements, but the role of trace elements is also equally important, and you should know the barrel effect, if plants grow normally, the nutritional physiology of plants must be reasonably matched in order to reproduce normally, for example, for example, nitrogen and phosphorus, these two nutrients The role of nitrogen is to lay the foundation for the reproductive growth or normal growth of plants, but phosphorus can promote germination, which is why sometimes when phosphorus fertilizer is applied at the time of sowing, it can improve germination rate and germination potential, and there is potassium underneath, and its role can improve the plant's ability to adapt to the environment. For example, adversity, pests and diseases, mechanical damage, and many others, but it doesn't mean that these three important trace elements are the same, and each nutrient has a specific function, and no one is important or who is not. There was an experiment in which I used a nutrient for a long time, and the result was that the plant died, and the reason was very simple, poisoning.
It should be an aphid.
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