Grass ash can be fertilized and insecticidal, so how to use it correctly?

What does grass wood do? How to use plants and trees correctly? It is said that grass and wood are the products of burning crop straw, firewood, and tall branches and leaves.

It contains phosphorus, potassium, calcium, magnesium, sulfur and a variety of nutrients needed by crops such as boron, manganese, zinc, molybdenum, copper, etc. Among them, the potassium and calcium content is large, and super wood is currently a wide range of potash fertilizer resources in rural areas of China. Grass and timber are not only applied as potassium fertilizer in agricultural production, but also have many functions such as cold protection, sterilization and disinfection, inhibition of the occurrence of pests and diseases, promotion of crop straw strength, and enhancement of crop stress resistance.

The wood of Cordyceps mites is alkaline and has fine particles, such as schistosomiasis, aphids, wheat spiders, wheat leaf wasps and other soft pests, which can block the stomata and cause physiological imbalance, kill some pests and inhibit their occurrence. Plants and trees will be 10 kg of water, soaked in 50 kg of day and night, sprinkled with filtrate, can prevent mites on fruit trees, vegetables, flowers and other crops. When the dew is still dry, spray fresh plants and trees on crops such as vegetables and <>

To prevent powdery mildew from fruit tree diseases, dig 10-20 cm of root soil 15 cm away from the stem, sprinkle 10-20 kg of grass and trees respectively, plus thin soil, the rate can reach more than 80%. For fruit trees with root rot, first of all, strip the soil at the root of the bottle column, scrape the surrounding soil, scrape off the bark of the diseased roots, dry the roots for 24 hours, cover the fresh grass kilograms - 5 kilograms, and cover them on the ashes, with a ** rate of 90%. Fruit tree nurseries are sprayed with grass and wood along the furrows, with a seedling volume of 30 50 kg, which can effectively prevent the occurrence of diseases such as blight and anthracnose.

Plants and trees must know the condition of the soil before they are used. Because grass wood is weakly alkaline. If the soil itself is already alkaline, don't use ultra-wood anymore.

In the south, the soil is usually acidic, so grass and trees can be used regularly. Also know that ultra wood is created after burning naturally occurring wood, not wood produced from chemically treated wood.

Grass ash can be used as a base fertilizer, and it can be mixed in proportion to the soil when configuring the soil. Or sprinkle a thin layer directly on the seeds when sowing, or soak the plant ash with water, and take the supernatant for watering the plant fertilizer. Grass ash is an alkaline fertilizer and should not be applied to plants that like acidic soil.

First of all, if there are a series of problems in the soil, then you can sprinkle grass ash at this time, and it can enhance the fertility of the soil, and it can also prevent a series of pests and diseases, so that crops can increase yield.

First of all, it should be sprinkled on the roots of the plant, and secondly, it should be fertilized before the rain, so that after the rain soaking, the medicinal properties of the plant ash can be exerted, and more importantly, it should be spread evenly, so that it will not cause a lot of waste.

Grass ash can kill insects, the usage is also very simple, just take an appropriate amount, sprinkle on the mud, pay attention to the amount, don't put too much, easy to burn seedlings.

Sprinkle directly on the surface of the potting soil, on the trunk of the plant, on the leaves and on the back of the leaves, especially in the places where insects are dense.

<> quicklime disinfection soil application time and specific function.

Quicklime is used to disinfect the soil, and the specific methods include removing and digging ditches, applying quicklime according to the number of acres of land, soil pH value and special conditions, irrigating and watering thoroughly, and drying and preparing the land.

1. Dry field disinfection time.

1. Before spring sowing.

Quicklime disinfection is applied before spring sowing, mainly to kill the germs when sowing, so as to protect the unearthed seedlings from being infested by germs and pests. The appropriate disinfection time should be completed half a month before sowing, so as to avoid the impact of high soil alkalinity on seedlings.

Yihui Long quicklime.

2. After the crop is harvested.

There is no crop in the field after the crop is harvested, because the germs that breed in the crop production process enter the soil, it is normal to disinfect the soil with quicklime after harvest, and the disinfection of crops after harvest is mainly for better planting of the next batch of crops.

Second, the time of rice field disinfection.

In the cultivation of rice fields, quicklime disinfection is also accompanied by the whole breeding process. However, the direct contact between quicklime and the soil is when the pond is cleared, and the other is when the rice is harvested and the field is dried.

As long as it is a clear pond, of course, quicklime can be used at any time, and there is no time requirement. For shrimp paddy fields, it is necessary to sterilize and disinfect rice after harvesting. Generally, the rice is dried immediately after harvesting, and quicklime is sprinkled on the field, which can kill the bacteria in the field, and at the same time, it can also kill the moss spores.

Therefore, the disinfection of the field surface with quicklime in the shrimp rice field is carried out after the rice harvest.

Quicklime can be sown only after 3 days of sprinkling.

Grass ash can kill insects.

Grass ash is the residue of plants (herbaceous and woody) after burning and is an insoluble substance. The gray matter of plants and trees is light and alkaline, which is easy to go away with the wind when dry and easy to go with water when wet, and it is easy to cause nitrogen volatilization loss when it comes into contact with nitrogen fertilizer. The main component of plant ash is potassium carbonate (K2CO3) with a relative molecular weight of 138.

Among them, the most abundant is potassium, which generally contains 6 to 12% potassium, of which more than 90% is water-soluble and exists in the form of carbonates; followed by phosphorus, generally containing up to 3%; 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.

Store plant ash

The gray matter of plants and trees is light and alkaline, which is easy to go away with the wind when dry and easy to go with water when wet, and it is easy to cause nitrogen volatilization loss when it comes into contact with nitrogen fertilizer. Therefore, the following methods should be adopted to accumulate plant ash: farmers with the conditions for storage should build a permanent plant ash warehouse and pour the ash into the warehouse every day for accumulation.

The ash silo should have a canopy, the ground should be high (to avoid water accumulation), hardened, and moisture-proof.

If the bag is conditional, the plant ash should be packed in a plastic bag in time and sealed for preservation. Single storage should be strictly avoided mixed with other farm manure. Some farmers are accustomed to pouring plant ash into a puddle and mixing it with organic fertilizer, straw, etc., and some people put grass and wood ash in the toilet or mixing it with human manure and manure, which is very wrong.

It's usually a few days apart. For plant ash, it is best to use it separately from organic fertilizer or farmhouse fertilizer after a period of time.

The application time of plant ash is not fixed, it can be used as base fertilizer, can also be used as top dressing. When applied as basal fertilizer, it is generally before the crop is sown and after the land is turned, which is about February to March; When applied as top dressing, it is generally after the flowering period of the crop and before the fruiting period, which is about May to June, or even earlier. Grass ash application method.

Grass ash is a widespread, low-cost fertilizer, which is widely used in crop planting, mainly to provide a large amount of potassium fertilizer for plant growth, and sometimes plant ash can also be used to control pests and diseases, generally prepared into an aqueous solution, and then sprayed on the leaf surface of vegetables with filtrate.

Grass ash, which is the residue of herbaceous plants or woody plants after burning, is an insoluble substance, but plant ash also has certain benefits, that is, it can be directly absorbed and utilized by crops, and does not need microorganisms to decompose. In addition, plant ash contains a large amount of potassium, which can supplement the nutrients needed for crop growth, so plant ash is widely used in crop planting.

Most of the grass ash in the countryside comes from the ashes after the straw is burned, the ashes produced by burning firewood in the earthen stoves used by rural families, and the soil kang in many old people's homes needs to be heated with plant straw, and the substances produced after burning are all its **. However, the largest production of plant ash is still in factories, some crop straw is used as a raw material for power generation, and a large amount of plant ash can be produced after burning. The main ingredient of plant ash.

Grass ash is mainly potassium carbonate, the minerals contained in plants, in the ashes after burning, it contains the most potassium element, accounting for six to twelve percent, in all crop straws, sunflower straw has the most potassium content, the same potassium-containing fertilizer, the fertilizer efficiency of plant ash is higher than that of chemical potassium fertilizer.

There is very little grass ash in the countryside now, the main reason is that the environmental pollution caused by burning crops is too serious, but if we need plant ash, we might as well go to power plants or poorer rural areas, these places should have it.

After the plant ash is fertilized, other chemical fertilizers can be applied separately, and the plant ash application can not be mixed with other fertilizers, and should be applied separately.

Because the plant ash is alkaline, mixing with other fertilizers will cause the volatilization of nitrogen in organic fertilizers and reduce the fertilizer efficiency. It will also cause phosphorus fixation and reduce the fertilizer efficiency of phosphate fertilizer.

1. First of all, we should collect plant ash, and the collected plant ash should be burned for a period of time as much as possible, and the plant ash that has just been burned is not suitable for fertilizer.

2. Do not do any treatment, directly sprinkle the plant ash in the pot for fertilization.

3. After stirring the plant ash with water, let it sit for a while and then put it in a flower pot.