Mulching the ground with straw is effective in preventing weeds, but will it have a negative effect?

After the straw is crushed, it is evenly spread on the ground with a certain thickness or the untreated straw is spread on the ground according to a certain thickness, which can control the occurrence of soil weeds. The main thing is to use the opaque characteristics of the straw layer to inhibit the growth of weed shoots, and carry out the second round of mulching after harvesting and pruning the land every year. Special attention should be paid to the main stem of the fruit tree is the center of the circle within a radius of 50 cm, should not be covered with any straw, should be covered with high organic matter content of bio-organic fertilizer 3 5 cm thick weed, this method has more effect is wonderful.

Straw and manure generate heat during the decomposition process.

Not only can kill weeds, but also cause crops to die, fruit trees are perennial, it is impossible to wait for them to rot before planting, generally in the manure cellar alone after rotting and then fertilizing, but this has no effect on weeding. The reason is that they are more worried that the crop straw covered by the orchard will become a hiding place for various pests and diseases, which will lead to frequent pests and diseases, and increase the difficulty of control. Therefore, it is reluctant to cover the orchard ground with crop straw.

There are pros and cons to the point expressed by most growers, although mulching the ground with straw is effective in preventing weeds from growing. However, because they are afraid of causing fires and explosive pests and diseases, they are still willing to choose other methods to work hard to weed, rather than just covering them with straw. For example, laying grass can be spread before the insects lay eggs, and then rotary tillage.

Or spread the grass after the leaves have fallen, which can resist the cold. In this way, the grass will grow slowly the next spring. 5-10 cm should be fine, so that the wind is strong in spring, and the ground has grass and the volatilization of water will be reduced.

In fact, there are some contradictions in orchard straw mulching, fruit producing areas generally do not have so much straw, and areas with more straw do not produce fruits. Mulching the orchard with straw is not as simple as imagined, at first, I thought that as long as there is very little, but I did not expect to use a lot, and the workload is not small. That is, after cutting grass, some organic matter is generated, which is of little significance.

are not as good as the probiotics cultivated after mulching.

The group decomposes a lot of nutrients from the soil. Due to the lack of promotion, fruit farmers are not aware of the benefits of mulching, and no one adopts the mulching method.

Yes, the first is to increase the probability of pests and diseases, the residual bacteria and eggs in the straw will gradually reproduce and move in the straw, which may have some adverse effects on the orchard; The second is the moisture retention capacity of the straw layer, which may cause excessive soil moisture near the root system, which is not conducive to the growth of the root system.

Of course, after the straw is piled up, there will be a lot of insects parasitic in it, and after it rots, it will also produce a lot of germs.

There won't be any negative effects, don't worry about that. It will not have any impact on crops.

Finally, the biggest concern for fruit growers is that there are a certain number of weeds in the orchard that will not hinder the growth of fruit trees. Compared to low-stemmed crops, fruit trees have tall and strong stems that are not afraid of weeds competing for soil nutrients. Some weeds also have a role in soil and water conservation and land surface temperature.

Straw mulching can only control some weeds, but it has little effect on vigorous weeds such as spinning flowers in the field. For these reasons, some farmers do not cover their orchards with straw. Whether or not the orchard is covered with weeds or not, farmers have different opinions due to the advantages and disadvantages of straw mulching.

Is there a way to overcome these shortcomings?

However, orchards with large planting areas require a considerable amount of straw, which also requires transportation, manpower and time, so it is best to spray the drug when there are many weeds. At present, the cost of pesticides is very low, and the mechanical operation is very convenient, saving time and effort. Weeds grow vigorously in spring, summer and autumn, the climate is relatively dry, and the orchard is covered with a large amount of straw, which is a fire hazard.

In the event of a fire, the farmer will lose more than he gains.

Although this prevents weeds, it may also affect the absorption of light and nutrients by plants.

Because if you do this, although the weeds are prevented, the fruit trees will not grow well.

This is because this method will affect the normal development of the fruit tree.

Because it will cause pests and diseases, the loss is greater.

Prevents the root system from respiring, and it also breeds germs.

Mulching the orchard with straw prevents weeds from growing. However, the dry weather also makes the straw in the orchard flammable, especially in the summer and autumn when the weather is hot. Most fruit growers have to go through several years of going from planting fruit trees to hanging fruit to generate income.

Once a fire breaks out in the orchard, it is absolutely a disaster for the fruit farmers, and the years of hard work and hard work have been in vain, and it is understandable that the fruit farmers are afraid.

As for the weeds in the orchard, I don't think it's necessary to remove them。Fruit trees are not food crops. The weeds in the orchard have little harm to the fruit trees, and can also retain water and fertilizer.

They only need to be cut off when they grow taller. By the way, it can also replenish the organic matter in the orchard soil.

For example, mulching the ground with straw to reduce soil moisture loss has a good ability to retain soil moisture. The straw at the bottom is also in contact with the ground, which will gradually decompose and be decomposed by microorganisms, gradually replenishing the organic matter in the soil. There is also a certain amount of straw accumulation around the root system of fruit trees, which can also form a certain thermal insulation layer, which has a certain thermal insulation effect on the root system of fruit trees and the ground base.

With the drug ** weed. Growers use their own motor vehicles to track down weeds without seeds. They use electric sprayers and two to three barrels of insecticide to solve this problem.

Weeds cannot be revived two or three times a year. Pesticides at 7-8 yuan per mu are enough for a year, but who has to work hard to pull the straw into the ground. There are weeds in the orchard, which are caused by overgrown weeds after the start of autumn.

Last year's autumn harvest was too busy and the weather was very hot. And less than the drug. In addition, for apple orchards, when the apples hit the ground, weeds will be caught, so it is best to reduce the damage, and the weeds will buffer the fruit basket for easy transportation.

This is because they are used as firewood for agricultural straw.

These straws can be crushed and sprinkled directly on the ground, so that they can not supplement the cultivation of the land, but also enhance the activity of carrying large soil.

Straw can be used for industrial processing, can be used to make farm fertilizer, can also be cut to the poultry to be fed with the bird, so that not only saves the feed cost of the poultry, but also deals with the straw stupid stalks, a spring lifts two gains, can also be used as a rural biogas tank.

I think the straw can be sold to those chemical factories, and the factory will treat the straw professionally, so it will not pollute the air, and it can also be used as a raw material.

In the WeChat circle of friends, straw burning has been the most discussed recently, with ** notices, blue sky bans, discussions and opinions from farmer friends, and more silence. Talking about straw burning from a personal point of view, a sentence prohibiting the burning of straw caused endless tears among farmers. The expert group recommended linking incineration to environmental pollution.

There are quite a few farmer friends, especially contractors, many who don't understand! So, are the benefits of burning straw outweighing the disadvantages or the disadvantages outweigh the benefits? Reduce the occurrence of pests and diseases.

Many germs and insect eggs are parasitic on the straw, and burning with fire can kill the bacteria and pest eggs stored in the straw, which is the most effective and the least expensive.

Reduce the number of weeds. Most of the weeds in the TCM Hospital fall on the surface of the cultivated land after maturity, and burning straw can clean most of the grass seeds. In addition to the weeds that use stems as the breeding object, the number of weeds in the field can be reduced next season.

Collect the compost and return it to the field. The ash from the burning of straw contains a large amount of potassium and phosphorus, which can be absorbed by the soil, absorbed by the crops, does not rot, and is directly applied to the soil. Increase soil permeability.

Through the high temperature of straw burning, the topsoil is heated and expanded, which improves the physical properties of the surface layer and improves the soil permeability. In the past, the level of breeding was underdeveloped, and most of the cultivated varieties were fat varieties, with low yield and low density. In the past, farmers used straw as fuel and livestock feed, and could only burn an endless supply of straw.

That is, the amount of straw burned is very small.

Farming does not involve agricultural machinery, and it is not an exaggeration to say that slash-and-burn farming is not an exaggeration. Most of it was cultivated by man or animal power, but the efficiency was limited, and the arable land was far less than it is now. There weren't as many straw burners as there are now.

In winter, the temperature is low and the time is long, and the straw is not easy to rot, which affects normal agricultural production. Regarding the benefits of straw returning, I would like to say that it took two years for those experts to understand the pros and cons of Zaoqing Zhengdao. Since burning is not allowed, straw disposal must be on the agenda.

Guidian, fatot, bale, etc. are less efficient than incineration, so it is easy to affect the cultivation time of the next crop. The straw should be crushed, the stump should be turned deeply, and urea should be added to promote rapid decay and increase production costs. It costs money to tie it up or pack it and deliver it to another place, but no matter how you deal with it, it always seems that the cost will increase if you don't burn it.

The danger of burning straw will pollute the air, it is difficult to control the fire, affect traffic, and threaten the safety of people's lives and property, especially the burning of straw near the village, the consequences of the Lu Song fire are unimaginable, and it is more of a safety issue. For the sake of the beautiful scenery of his hometown, banning the burning of straw in the open seems to be an inevitable choice. Slash-and-burn, burning wasteland, composting is unnecessary, but how can it be pollution!

Is the organic matter back in the soil? It is necessary to proceed from reality, fundamentally solve the problem, put forward a way to solve the problem, how to deal with straw, and how to use it? What is the subsidy for one kilogram or one acre of land**, the state should guide farmers to use straw in order to increase the pressure on farmers, rather than a one-size-fits-all situation where straw is not properly disposed of.

Straw is a very good fertilizer for stool covering**. The straw is buried in the soil and decomposed by microorganisms. The nitrogen, phosphorus and potassium contained in the straw will decompose and become fertilizer for the next year's crops.

However, it is also possible that the soil is too fertile and causes seedlings to burn.

The advantage is that it will not cause too much pollution, and the disadvantage is that this soil shed has been planted for a long time, and the dust god cannot plant crops in a short period of time.

In this way, it can protect the environment and will not cause serious pollution to the environment, but it will make the emergence rate lower and lower, and it will also breed more pests and pests.

In order to protect the environment, it is stipulated that straw cannot be burned for landfill, which greatly reduces environmental pollution in Qiaosun. But for crops, the pole is a healthy and environmentally friendly fertilizer, which is very helpful to the growth of crops, but after the state bans it, it has caused a waste of resources.

How to prevent the growth of weeds is a long-term problem faced by fruit farmers when planting fruit trees in orchards. In the past, fruit growers used straw mulching to do so.

However, in recent years, it is rare to see fruit farmers who still take straw to cover the orchard. So why are growers reluctant to do this? Let me give you an analysis.

Advantages and disadvantages of orchard straw mulching on the groundOrchard mulching straw on the ground has many benefits, in addition to inhibiting the growth rate of weeds, it can also play a role in soil moisture retention and reduce the evaporation of soil moisture.

In addition, in winter, there is straw mulching, which can also play a role in heat preservation. However, there are two sides to the story, and while straw mulching has various benefits, it also has its drawbacks.

First of all, the orchard is covered with straw, which inhibits the growth of weeds, but also breeds many pests and diseases. For example, after the fallen leaves and fruits rot, the insects attracted will incubate their eggs in the straw pile. This allows for overwintering in straw piles and continuing to damage orchards after the beginning of spring.

In terms of orchard management, pest control is much more difficult than weeding management, which is one of the main reasons why fruit farmers no longer prefer straw to cover the orchard floor.

Another reason is that although straw mulching can play a role in heat preservation, it is also easy to cause water and fire. When the climate is cold, smoke and keep the orchard warm, and if you are not careful, the water will run away. In winter, the climate is dry, and it is very unsafe to cause a large area of fire as soon as the water is gone.

In addition to straw mulching, to inhibit the growth of weeds, there are more scientific treatment methods, and now many fruit farmers are slowly accepting, developed areas, they adopt orchard weed management methods, that is, the use of grass cultivation.

This kind of cultivation is actually to plant grass artificially, and use grass to inhibit grass growth in the orchard. Generally, orchard grass cultivation is not just planting some grass or grass cultivation, which needs to meet a basic condition.

The grass planted by fruit farmers should be short, not too tall, and the root distribution should be shallow, so that there is no competition with fruit trees for water and fertilizer. When the grass grows to a certain height, it is harvested to make green manure.

In addition to grass cultivation, many fruit farmers now reuse their orchards, that is, intercropping other cash crops.

To sum up, the method of straw mulching in orchards is a more traditional behavior, although it has advantages, but the disadvantages are also obvious. Now there are better treatment methods, such as using reflective film and plastic film, which can play the role of straw mulching, and there are fewer shortcomings.

And now more and more fruit farmers are accepting the management of grass cultivation technology. The traditional method of natural straw mulching is a bit outdated, and no growers are willing to use it.