Why do farmers sprinkle quicklime in their fields? What should I look out for?

The long-term use of inorganic chemical fertilizers has led to serious acidification of cultivated soil, and quicklime is sprinkled to neutralize the over-acidified soil by making lime alkaline, so that the cultivated soil can be reactivated and increase soil viscosity. However, quicklime should be used reasonably, and it is necessary to pay attention not to scatter a large area at will, and to check the quality of quicklime when buying it, and not to leave as much as you want, it is easy to deteriorate.

Many areas in China have been subjected to serious soil acidification due to the long-term use of chemical fertilizers. In soil improvement, the main measure for acidic soil improvement is the use of quicklime to improve the soil quickly.

However, when using quicklime, it must be used reasonably according to the actual situation, if it is used excessively, it will lead to alkaline soil, which will also cause malnutrition.

Because sprinkling quicklime on farmland can play a role in disinfection and sterilization, improve soil properties, and make the soil more fertile. When sprinkling quicklime, be careful not to sprinkle too much quicklime and not to sprinkle expired quicklime.

Farmers sprinkle quicklime in their fields to eliminate alkalinity, and care should be taken that the amount of quicklime should not be too much, otherwise it will lead to malnutrition of the soil.

Quicklime sprinkled in the ground has the functions of improving soil pH, insect control, soil sterilization, and increasing yield. Pay attention to the appropriate amount of quicklime, and do not use impurities or agglomerated quicklime.

This is done because quicklime can kill parasites and eggs in the field, and the crops will grow better in the future.

Many farmers sprinkle quicklime into their fields in order to neutralize the acids in the fields and make them easier for crop cultivation.

1.Quicklime can improve acidified soils. Due to the long-term use of chemical fertilizers in many lands in China, soil oxidation is more serious.

The main component of quicklime is calcium oxide, which is an alkaline substance that can neutralize over-oxidized soil and regulate the acidity balance of the soil. 2.Quicklime has a disinfection and sterilization effect.

Destroys germs and microorganisms, even eggs. 3.Quicklime can improve the nutrient status of the soil.

The main component of quicklime is calcium oxide, which can increase the calcium content in the soil and promote crop growth after being used in farmland. The soil properties are improved to a certain extent, increasing the viscosity and retaining moisture.

The purpose of this is to keep the plants more insulated, so that they do not freeze to death after snowfall, because this lime powder has special properties and can generate heat.

In this way, it can effectively kill and sterilize pests in the farmland, and it can also increase the nutrients and fertilizers of the soil, which is very good for the soil.

In fact, this is not just a matter of the past few years, because farmers began to use quicklime in the gas for air oxidation several years ago, and then turned into powder and sprinkled in the field. In view of the fact that some compacted land resources are indeed sprinkled with quicklime, the situation of land resource compaction has been improved, and the land resources have a slightly loose situation, which has indeed the actual effect of farmers getting rich on crops, and has great benefits in improving the growth environment of crops.

In the past, farmers polluted the ecological environment by adapting measures to local conditions and polluting the ecological environment in the case of quicklime formation in production and manufacturing. Today, most of the rural manufacturing factories, the stone pang, have been eliminated, which is a major loss for the farmers. It is one of the reasons why all kinds of serious illnesses have been vacated for so many years.

The production of quicklime is so bad that it is manipulated, and many chemical fertilizers are used. In recent years, quicklime that can be bought in the countryside is a white precipitated chemical formed by chemical changes with water. Also known as hydrated lime.

Hydrated lime should be applied in the field and sprinkled on the ground in the case of turning the soil, and it will enter the soil with the ploughing, and it is not easy to cause damage to the crops through the combination of soil. It can also be used in combination with green manure crops and wheat straw returning to the field. If applied during the growth season, it will burn the rhizome and impeller, etc., and will cause damage to food crops.

For fruit trees, in order to improve the soil, there are also sprinkled in the upper fertilizer pit in autumn and winter, and some are sprinkled on the ground and turned over. Practical experience has proved that the sprinkling of lime powder can reasonably increase the pH of soil.

Hydrated lime application to the soil can improve compaction. In the lower reaches of the Yangtze River, soil compaction is often seen, which is related to the soil parent material, and is also inseparable from the long-term continuous crop planting, lack of organic fertilizers and trace elements. When hydrated lime is applied to the soil, the soil structure changes and the looseness level increases.

Because quicklime is strongly alkaline, many bacteria, viruses and insect pests are particularly sensitive to quicklime, and lime powder will cause a lot of heat when the air in the field is oxidized.

Mainly because the long-term use of chemical fertilizers leads to the loss of soil water and nutrients, sprinkling lime can improve the acidification of the soil, so many people sprinkle lime into the soil in order to improve the soil environment.

Quicklime has a restorative function, which means that it can improve the soil, which is conducive to growing crops and making it grow better.

In the past, crops grown in rural areas were mainly based on organic fertilizers, which mainly included human manure and pig dung, cow dung, etc., and firewood and soil were used to burn grass and wood compost. With the development of rural economy and society, the application of chemical fertilizers has become very extensive. Now farmers are farming, most of them use our common urea, potassium dihydrogen phosphate, phosphorus pentoxide and other chemical fertilizers, including a variety of binary or ternary compound fertilizers and various trace element fertilizers.

This kind of chemical fertilizer has simple composition and high nutrient content, so the fertilizer effect is fast, the fertilizer strength is strong, and it can quickly absorb crops and achieve the effect of increasing yield.

However, chemical fertilizers are generally inorganic fertilizers, which do not contain organic matter, and long-term use can not only not improve soil properties, but also cause poor soil, serious pollution, and damage to the ecological environment. Therefore, after using chemical fertilizers for a long time, many farmers find that no matter how much fertilizer is increased, the growth of crops is still not good, the yield is not high, and even pests and diseases will appear. The reason is that the long-term application of chemical fertilizers leads to soil malnutrition, aggravates the consumption of phosphorus and potassium in the soil, reduces the activity of soil microorganisms, and leads to serious soil oxidation.

So, after years of farming, the farmers sprinkled quicklime on top. Why are you doing this?

It mainly has the following important roles. First, quicklime can improve acidified soils. Due to the long-term use of chemical fertilizers in many lands in China, soil oxidation is more serious.

The main measure of acid soil improvement in soil improvement is the rapid improvement of soil with quicklime. Because the main component of quicklime is calcium oxide, which is an alkaline substance, it can neutralize the over-oxidized soil, regulate the acidity balance of the soil, and reach or restore normal levels. This method is economical and fast, and it allows for soil improvement.

Second, quicklime has a disinfection and sterilization effect. We all know that there will be a large number of germs and microorganisms in the soil after long-term planting, and even insect eggs.

This harmful germ and eggs are very bad for the growth of crops. Sprinkle quicklime into the field, and the quicklime reacts when it encounters water, so that the calcium hydroxide becomes strongly alkaline, which can play a good role in disinfection and sterilization. Because both bacteria and eggs have proteins, they will lose their activity when encountering alkalis with strong proteins, achieving a bactericidal effect.

In addition, quicklime reacts with water, which can release a lot of heat to kill pests. Third, quicklime can improve soil nutrient status. The main component of quicklime is calcium oxide, which can increase the calcium content in the soil after being used in the farmland, so that crops can absorb more balanced trace elements and promote crop growth.

At the same time, after quicklime meets water to form calcium hydroxide, it can improve the soil properties to a certain extent, improve viscosity, retain water, improve soil permeability, help the respiration and growth of crop roots, and provide more beneficial living space for the activities of microorganisms. However, when using quicklime, it must be used rationally according to the actual situation, and excessive use will lead to alkaline soil and malnutrition. In addition, it is necessary to take protective measures and not let the quicklime dazzle to avoid accidents.

On the one hand, the purpose of this is to sterilize the land and ensure that the crops are not infected by bacteria; On the other hand, it is to change the pH of the soil and make the soil more fertile.

It has the function of medicine, and when used together with fertilizer, it can get rid of pests, which not only saves fertilizer, but also plays a role in eliminating pesticides, killing two birds with one stone.

Because quicklime can kill bacteria, sprinkling quicklime in the farmland can kill the parasites and eggs in the farmland.

Because of the special substances contained in quicklime, they can make the land more fertile, and can also play a role in sterilization and poison to protect the better growth of crops.

In fact, the effect is to make the land warmer, because the quicklime reacts with the air and will release heat.

It may be to fertilize the effect, because some substances in quicklime can also promote the growth of crops.

Doing so will keep the fields free of pests, so that the grain you grow can be harvested, and your grain will be sold at a good price in the fall.

Doing so can improve the disease resistance of the crop, which in turn can also increase the yield of the crop.

Because lime can play an insecticidal role, many farmers will sprinkle some lime in their fields, which will reduce the damage of crops to pests.

Quicklime is an inorganic compound, the physical property is white powder on the surface, the impure is gray-white, light yellow when containing impurities, and has hygroscopicity. The process by which quicklime absorbs water and reacts to produce calcium hydroxide, called the maturation or digestion of lime, while releasing a large amount of heat. Its properties determine the application of quicklime in agriculture.

It has the effect of disinfection and sterilization on the soil, after the quicklime is applied to the soil and turned deeply, a large amount of heat will be released during ripening, which will increase the short-term temperature of the soil, and it is also conducive to killing the residual germs in the soil. Reduce soil-borne diseases or root-knot nematodes, especially in protected areas and mulching.

<> has the effect of insect control, quicklime can also effectively kill the eggs or pupae in the soil when it is ripened, and can reduce the base number of insects. Improved soil acidityThe application of quicklime to acidic soil can effectively eliminate the adverse effects of excessive aluminum and manganese plasma on crop growth in the field, and then increase the soil pH value, improve soil acidity, and promote the healthy growth of crops.

Increase the active components of the soilAfter the acidic soil increases the soil pH value due to the application of quicklime, it can often strengthen the activities of beneficial microorganisms such as digestive bacteria, fibrodetic bacteria, etc., thereby increasing the available nitrogen and phosphorus of the soil, which can reduce the fixation of acidic soil and increase the release of organic phosphorus. After applying quicklime to improve the physical properties of the soil, it can promote the solidification of soil colloids, which is conducive to the formation of good aggregate structure of the soil and the fertilization of the soil. Because quicklime is a strong alkaline substance, when applied to acidic soil, it can achieve soil acid-alkali neutralization, providing a healthier growth environment for crop roots.

If the soil pH value is weakly acidic, it can be applied according to about 100 catties per mu, if the soil is seriously acidic, you can use about 200 catties of quicklime per mu, generally no more than 300 catties, specifically combined with the acidity of the soil in the field. So as not to affect the absorption of certain mineral elements by the root system and affect the growth.

Quicklime can absorb water, can be used for disinfection and sterilization, and can also be used to improve the properties of the soil; When sprinkling quicklime, pay attention to the appropriate amount, calculate according to the pH value of the local soil, and choose slightly better quality quicklime.

Quicklime can be disinfected and sterilized, and can also adjust the acidity and alkalinity of the soil and fertilize the soil; When sprinkling quicklime on the farmland, you must pay attention to the proportion, and do not water the quicklime immediately after sprinkling.

Quicklime can disinfect and sterilize, balance soil pH; When sprinkling quicklime, be sure to pay attention to a small amount and many times, do not mix with water, and it is better to choose sunny weather.

Quicklime can be used as a pesticide, as a vegetable oil decolorizing agent, a drug carrier, a soil amendment and a calcium fertilizer.

Quicklime powder can be used for steel, pesticides, medicines, desiccant, tanning and alcohol dehydration. Quicklime contains flint lime, which matures slowly, and if it is cured after the lime slurry hardens, it will cause uplift and cracking due to the expansion produced by curing. In order to eliminate this hazard of over-fired lime, the lime should be "aged" for about 2 weeks after it is cured.

Quicklime can only be used to disinfect water, fecal excrement, soil, etc., and is hardly used in other places. Because the main component of quicklime is calcium oxide, disinfection relies on calcium oxide dissolved in water to generate calcium hydroxide and release a large amount of heat. Calcium hydroxide is a strong base that raises the pH of the disinfectant and destroys the growth environment for bacteria.

At the same time, a large amount of exothermic will cause local high temperature, which has a sterilization effect.

The principle of disinfection of fish ponds is to use calcium oxide and water reaction to generate calcium hydroxide, so that the water quality is strongly alkaline, resulting in the survival and death of diseased microorganisms and wild trash fish and shrimp, so as to achieve the purpose of quicklime fish pond disinfection. It has a strong disinfecting effect on most of the breeding pathogens. In addition, quicklime can neutralize the acidity in the pool, improve the alkalinity of the water body, and adjust the pH; It can be combined with copper, zinc, iron, etc. to reduce water toxicity; Promote the mineralization and humus decomposition of organic matter by anaerobic flora at the bottom of the pool, precipitate the colloidal particles suspended in the water, and improve the transparency of the pool water; It can improve the substrate, increase calcium fertilizer, improve the utilization rate of calcium and phosphorus of aquatic plants, which is conducive to the reproduction of plankton and maintains a good ecological environment of the water body.