There is a lot of rice planted in the farmland, and there are a lot of wild grasses, can the wild gr

There is no doubt that weeds are originally rich in organic matter, and they can be made into green manure by making them.

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In the past, the economic conditions in the rural areas were not good, and the rural areas were backward, and at that time, industrialization was also backward, and there were very few chemical fertilizers that could be used for farming in the rural areas. In order to increase yields and make rice fields more fertile, on the one hand, rural areas will collect a large amount of animal manure to make fertilizer, and second, people will also collect weeds and leaves to make fertilizer.

I believe that many people have had a similar experience: after the beginning of spring, they need to plough the land to make rice seedbeds, and at this time a lot of safflower grass will grow in the field.

At this time, the farmer will first cut the safflower grass, then chop it, and finally sprinkle it in the ground when plowing the land, so that it can be used into fertilizer. At that time, in order to allow more safflower grass to grow in the field, people would also deliberately sprinkle some safflower seeds in the ground after the autumn harvest.

After the rice is transplanted, a lot of weeds will grow in the rice field, so the farmers have another job, that is, weeding, which we call "catching grass" here. Because there were no herbicides at that time.

Available, only manual weeding. The specific method of operation is to go down to the field like planting rice, and then sweep the soil of the rice field with both hands left and right. Once you catch the weeds, you will clump them into a ball and stuff them into the mud, and finally step on them with your feet.

These weeds will be covered in mud and will be flooded and eventually die. Dead weeds will eventually be turned into fertilizer and used by rice.

Since the advent of herbicides, it has been much easier and faster for farmers to control weeds. Since the advent of chemical fertilizers, farmers have become less and less likely to use weeds and plants to make fertilizer. However, the use of green plants to make fertilizer is a green, environmentally friendly fertilizer production method, so that the fertilizer is also a very good organic fertilizer, is good for rice fields, green manure should be used in large quantities, fertilizer should be reduced in use.

No. Because the weeds in the rice will grow together with the rice, it is very difficult to make green manure, so the weeds cannot be turned into green manure.

No, the weeds in the rice grow together with the rice, and it is difficult to make green manure, so you can't make the weeds into green manure. The herbicide is absorbed by the weeds and has a good effect. However, the higher the temperature, the better, if the temperature is too high, the spray mist liquid evaporates immediately, especially for volatile herbicides and photodecomposition herbicides such as cyanofluoride, such as dioxide ether herbicides, the temperature is lower than alachlor, acetochlor and other amide herbicides may cause pesticide damage to rice heart leaves when the temperature is low.

High temperature season must be before 11 a.m. and after 4 p.m.; Choose to use the drug in windless or light wind conditions. In the past, the economic situation in the rural areas was not good, and the second was that the rural areas were backward. At that time, industrialization was also very backward, and there were very few chemical fertilizers that could be used for farming in the countryside.

In order to increase production and make the fields more fertile, rural areas collect a large amount of animal manure to make fertilizer on the one hand, and wild grasses and leaves to make fertilizer on the other. Whether it's live streaming or water live streaming, pre-bud closure is a must. The live broadcast must be closed before the buds.

During live broadcasting, blocking herbicides generally use valerate, butachlor, isooxanone and other ingredients, and propranolol with added safety agents is generally used in water direct broadcasting. Bensulfuron-methyl can also be added to prevent both broadleaf grass and sedge. Closed seeds before bud seeding and after sowing are applied daily.

Rice is usually planted for one or two seasons, and the southern double-cropping rice area uses part of the paddy fields to grow rape, potatoes, etc. in winter, but most of the farmland is empty. For the production of solder blocks for the production of green organic rice, green manure can be planted in winter fallow fields to increase the effective nitrogen, phosphorus, potassium and organic matter in the soil, improve soil fertility, improve soil air permeability, and effectively reduce the occurrence of pests, diseases and weeds.

Practice shows that the green manure rice grows well, the effective tillering of rice increases, the ear setting rate and 1000-grain weight of rice increases, the diseases, insects and weeds are reduced, the rice yield is increased and the yield is stabilized, the quality is significantly improved, and the reduction of nitrogen fertilizer by 20% to 30% still has an impact on rice yield. At this time, farmers can cut the safflower grass first, then chop it, and finally sprinkle it on the ground together when plowing the land as fertilizer.

At that time, in order to let a lot of red flowers and plants grow in the fields, red flower seeds were specially sown in the fields after the autumn harvest.

Of course, it is possible to turn wild grasses into green manure, because wild grasses are rich in organic matter and are very suitable as green manure.

Yes, the decomposed green manure has no foul odor, and contains rich nitrogen, phosphorus, potassium, organic matter and various trace elements, comprehensive nutrients, is a good organic fertilizer, but also a good soil regulator and soil disease inhibitor, after application can promote the formation of soil aggregate structure, is conducive to the coordination of water, fertilizer, gas and heat, and is conducive to the activity of microorganisms, enhance the ability of soil water storage and moisture.

Astragalus sinicus (scientific name: Astragalus sinicus) is a plant of the genus Astragalus in the legume family, also known as warping, safflower grass, grass, native to China. It likes warm and humid conditions, has a certain ability to tolerate cold, and requires sufficient water during the whole growth period.

Chinese milk vetch does not have strict soil requirements, and sandy and clayey loam soils are more suitable. Poor salt tolerance. Biennial herbaceous plant.

Roots, whole herbs and seeds can be used as medicine, which has the effect of dispelling wind and brightening eyes, strengthening the spleen and invigorating qi, detoxifying and relieving pain.

Chinese milk vetch is one of the main nectar source plants in China.

Speaking of rice transplantation, I believe the busy scene on the edge is now in mind. The most traditional method of rice transplantation is optimization, which is the most common. In addition, there is a row.

The method is transplanted, and the person is in a wide row, which reduces the effect of paddy flatness, as the footprint is bursty and the growth rate of the seedlings is improved.

However, with the development of technology, innovative rice sowing models continue to emerge. Now whatever it is "retreating" or "being planted", it hardly sees it. Mechanical transplantation, throwing, aquatic weed living are replacing traditional manual transplantation.

With the transformation of transplanting patterns, the weeds in the paddy fields have also undergone changes. In the past few years, rice fields, thousands of gold, horse soup, duck tongue, and water bamboo leaves have gradually reflected certain antibodies, and the rapid characteristics of mutation have become a big problem for many farmers growing in rice. Weeds increase the cost of rice cultivation and quietly affect rice production.

For example, when living in rice, the farmer is filled with "live rice, I am afraid of falling, two fears, and three fears in the morning" early", while rice seeding is a live, and then for rice drought, these two patterns are crucial. If there is a rice field with uneven height, then the weed effect in the highlands will be discounted, and the rice field will be more difficult. Whether the weed effect of the paddy field is good or not, whether it is the paddy field industry has a lot to do with it.

In the rice field broadcast rice field, it is safe, effective, and saves money. It is very important to use water for applications. First of all, to collect soil spray before the rice seedling stage, it is necessary to protect the liquid that is completely connected to the surface of the soil, otherwise the weeds are very serious.

In general, 1-3 days after sowing, the effect of application, if the temperature is high, the field is small, then 2-3 buckets of water cover 667 square effect; If the paddy field is drier and the air humidity is relatively small, then water enters, and the rice does not solidify for 1-3 days after the water dries, then 3-4 buckets of water cover the effect of 667 square meters.

Rice cultivation patterns have an impact on the type and density of weeds, which also has an impact on the choice of herbicide.

Generally speaking, the live field was selected as alanine + safety agent, butamine + safety agent and benzesulfon, which has a good sealing effect on grass weeds and broad-leaved weeds. But if you use dimethopourn, mi ding ling, for a long time, some grass has caused the corresponding resistance, then it is necessary to prepare, choose dimethyl + ice-cold amine, intermediate butyl + butanoxamine is worth the compound liquid not in rain and water.

First, no closure, no live broadcast! The use of chemicals to close the weeding, this way is simple and crude and effective! Clause.

Second, weeding should be adapted to local conditions.

3. Choosing the right medicine is the key to weeding.

You can drive a flock of ducks to the rice field, the ducks will step the grass into the ditch, so that the grass is not easy to grow too quickly, you can also use the medicine to seal the weeding, generally two times the medicine to seal the weeding can be.

Different regions, the reason for the difference in grass conditions, some places have more broad-leaved weeds in paddy fields, and some places have more sharp-leaved weeds in paddy fields, therefore, when you buy herbicides, you must first distinguish which weeds are more in your own paddy fields, and then go to the targeted purchase of herbicides.

1. Secondary succession begins in places where the original vegetation no longer exists, but retains soil conditions, or even seeds or other propagules, such as succession on the grassland after grazing, succession on abandoned farmland, and succession after the forest is severely cut down

2. In a place where there has never been vegetation, or where vegetation originally existed, but has been completely wiped out, primary succession begins, such as bare rock, glacial mud

As a result, abandoned farmland quickly grows weeds, and after a few years it grows small shrubs, a process that belongs to secondary succession

Rice field weeds (a) Barnyard grass [echinochloa crusgalli (L.).)beauv.It is also called water barnyard grass, grasses.

1.Morphological characteristics Stems erect or oblivion, 50 130 cm, tall leaf strips, 5

The process of rice planting includes seven links: land preparation, seedling raising, weeding and insect control, fertilization, irrigation and drainage, drying, and screening.

After the rice field is abandoned and overgrown with weeds, this process should be called abandonment or abandonment, and it makes more sense to call it abandonment.

The process of overgrowing rice fields with weeds is called barrenness.

Analysis The process by which one community is replaced by another over time is called succession. The types of succession are primary succession and. See the full analysis