What is the reason why the vegetables grown in the land are not big and the roots are red and have n

It could be that there are too many fertilizers.

Many people have the misconception of growing vegetables, thinking that the more fat, the stronger the vegetables! In fact, this idea is very wrong, if you blindly increase the amount of fertilizer, it will lead to excessive soil concentration, root cracks, thinning, and even plant death.

Organic fertilizer is not ripe and produces high heat.

Recently, people are pursuing green and healthy food, and more and more people choose to use organic fertilizer, but the temperature of unrotted organic fertilizer will rise after application, making the rhizome turn brown and cause the plant to die.

The organic fertilizer is not decomposed to produce ammonia.

Unrotted organic fertilizer will produce ammonia gas when applied, and the stems and leaves of seedlings will be poisoned, resulting in plant death.

Too much or too little water.

In order to control the growth of seedlings, vegetable farmers will control the moisture, but when the soil temperature is higher than 40 degrees, the leaves will be transpired.

Enlarged, the root system has a very low ability to absorb water, and the plant will die of lack of water.

Experiments have shown that water can maintain a certain temperature, which is stronger than air, and if the seedlings are frozen, it is mainly due to the fact that the soil is too dry.

The root system is too shallow. If it is cloudy for more than six consecutive days.

Vegetable seedlings will have a shrunken root system, the ability to absorb water will be weak, and after the soil temperature is clear, the plant will be dehydrated, and then lodging, and then die.

There will be various pests in the unrotted manure, which will bite off the root system and cause the death of vegetable seedlings.

Deficiency. Copper is a health element for vegetable seedlings, which can promote lignification of the plant epidermis and enhance resistance. At the seedling stage, the lack of copper in the plant can increase the chance of invasion of fungi and bacteria, resulting in rotten and dead seedlings of rhizome bark. Here are a few reasons why.

If the soil compaction is too serious, add organic fertilizer or nutrient soil to it, and the effect will come out naturally.

Hello dear. There are many reasons why the vegetables in the vegetable field do not grow well, and it may also be a lack of fertilizer. There are many reasons for the solution, such as whether the soil quality is suitable, whether the water nutrients and light are sufficient, etc.

If the water, nutrients and light can meet the needs of crop growth, and the vegetables are not long, it is a problem with the soil quality, it is recommended that you sample the soil of the vegetable field and send it to the agricultural research department for soil quality analysis to see what ingredients are missing, what kind of crops or vegetables are suitable for planting, and selectively choose soil conditioners, fertilizers or crops for planting! Rational use of space and location, vegetables can grow better (1) to avoid a wide variety. Nowadays, it has become a fashionable trend to grow vegetables at home, some are planted on the balcony, some are planted in the yard, some are planted on the roof, and some are planted in the open field.

All in all, it's to grow some vegetables for yourself and eat fresh and safe. Often ignore the rational use of space, and make the later vegetable growth affected and reluctant to pull out, willful growth, over time, either pests and diseases or the old can not eat, so a lot of effort to grow out of the vegetable, the result is wasted. (2) Avoid intercropping.

Some people are afraid of wasting space and location, no matter what vegetables are planted in a blank and seedless place, and they don't know how to consider the growth of other vegetables. For example, it is unreasonable to grow any vegetables under the cucumber rack, some grow leeks, some grow spinach, etc. When the cucumber seedlings are put on the shelves, it will have an impact on any vegetables below, spreading the number of pests and diseases to other vegetables, and also affecting photosynthesis.

Therefore, when growing vegetables, do not neglect to make reasonable use of space and location. It is important to consider how the vegetables will grow in the later stage, and whether the potatoes are trapped to leave enough space for the later growth of the vegetables. Don't think that if you plant more, you will reap more.

Dear, remember to pay attention to the real-time weather forecast in advance when you go out, take care of the protection to improve safety awareness, and protect yourself and your family. <>

Summary. Increasing the application of farm fertilizer wants to play a role in improving the soil, before planting crops, agricultural fertilizer can be applied, it can improve the permeability of the soil, improve the activity of rhizosphere microorganisms, and can convert the insoluble mineral elements in the soil into soluble nutrients, so as to achieve the desired purpose. 2.

Applying limelime is also a good acidic soil conditioner, which can increase the pH value in the soil, but it needs to be applied together with farmhouse fertilizer to maintain soil fertility, otherwise the soil will dry out. At the same time, the dosage should be controlled so as not to affect the normal growth of plant roots. 3.

When adding plant ash to improve the soil, you can add plant ash to the soil, which can increase the pH value of the soil, and it also contains.

Good. It should be a matter of soil or nutrients. If the land is sandy or heavy, the organic matter content is particularly low, or the soil is slightly acidic and acidic, and the water table is on the ground, then it is sometimes difficult for such land to grow even if it is planted with vegetables until it is improved.

In addition, whether it is the cultivation of vegetables or other plants, they need adequate nutrition.

There are three main methods of soil improvement. The first is to add an appropriate amount of granular soil to the soil, but the proportion of ridge dust can not be too large, and the granular soil can be mixed with water and then stirred evenly and then added to the soil; The second method is aimed at the alkaline soil of the cherry type, which can be watered with alum fertilizer water or ferrous sulfate solution to make it acidic; The third is to supplement the soil with organic fertilizer, mix the well-decomposed fertilizer with the soil, and then sprinkle it directly on the surface of the soil, and then turn it deep into the soil.

It's not a matter of sand and gravel.

What if it's acidic.

Before planting crops, agricultural fertilizer can be applied, which can improve the permeability of the inflated soil, improve the activity of rhizosphere microorganisms, and convert the insoluble mineral elements in the soil into soluble nutrients, so as to achieve the desired purpose. 2.Applying limelime is also a good acidic soil conditioner, which can increase the pH value in the soil, but it needs to be applied together with farmhouse fertilizer to maintain soil fertility, otherwise the soil will dry out.

At the same time, the dosage should be controlled so as not to affect the normal growth of plant roots. 3.When adding plant ash to improve the soil, you can add plant ash to the soil, which can increase the pH value of the soil, and it also contains.

It should be a matter of soil or nutrients.

Such land is found if the land is sandwiched with gravel or has a heavy texture, has a particularly low organic matter content, or if the soil is slightly acidic-acidic and has a water table.

Before improvement, it was sometimes difficult to grow even if you planted vegetables.

In addition, whether it is the cultivation of vegetables or other plants, they need enough nutrition, and if the nutrition is not good, it will not grow.

1. The soil quality is not good, too barren.

2. Poor management, no fertilization and watering.

3. The environment is not good, such as the dusty roadside.

4. Drought, the soil layer is too shallow, and the soil is not rich enough water.

If there is no nutrient in the soil, the vegetables will not grow much.

There could be a number of reasons:

1.Under the condition that the soil quality and water quality are not problematic, the looseness, temperature, humidity, fertilizer, and seasonal conditions of the rooting soil should be considered; You can apply some phosphate fertilizer in moderation, which is good for long roots.

2.It varies depending on what kind of dish you grow. Different food factors are different, if the environmental conditions and nutrition are suitable, you can consider whether there are underground pests and diseases.

3.Some dishes need to be rotated, which can be caused by continuous cropping.

Prevention and control methods 1, agricultural measures.

Use insect-free soil to raise bushes and dig seedlings. When transplanting, remove the insect-bearing seedlings or remove the "root nodules". Remove the carcass of the insect, reduce the density of the insect population, and burn the roots of the insect after drying.

Turn the soil deeply. Turning the topsoil below 25 cm can reduce the occurrence of insect infestations. Crop rotation for insect control.

In fields where nematodes occur a lot, changing to insect resistant (tolerant) crops such as grasses, onions, garlic, leeks, peppers, cabbage, cauliflower, etc., or planting aquatic vegetables can reduce the occurrence of nematodes. High (low) temperature inhibition insects. Take advantage of the high temperature in summer and the leisure season, ridge irrigation and mulching, and seal the shed for two weeks.

The occurrence of nematodes can be inhibited by using low-temperature freeze in winter.

2. Pharmaceutical prevention and control.

Soil treatment before planting: 10% gram phosphorus, 3% milel, 5% Yishubao and other granules can be selected, and 3 5 kg per mu can be evenly sprinkled and turned into the soil. Stirring Zheng can also use one of the above-mentioned agents, 2 4 kg per mu in the planting line on both sides of the ditch application, or with the planting hole application, the amount of 1 2 kg per mu, after the application of the soil to prevent the root system from direct contact with the agent.

Seed dressing, hole application, spraying, root irrigation: using the high-efficiency microbial fertilizer produced by Akunas in Norway - Woyiduo---HYT. Norway's Aquinos As is a multinational company engaged in biotechnology research and development.

Through the wholly-owned acquisition and merger of American professional biotechnology companies, the company has invested in the construction of factories in the United States, Mexico and Malaysia, making it rapidly develop into a leading global biotechnology company. At present, the main promotion of HYT series products in the world will play a positive role in promoting the development of global organic agriculture, environmental protection and technological progress in the agricultural materials industry.

3. Electricity prevention and control method.

The use of physical plant protection technology can effectively prevent plant diseases and pests throughout the growth period, among which root-knot nematode disease can be controlled by soil electrodisinfection method or soil electrotreatment technology. Root-knot nematodes are weak to current and voltage, and the 3DT series soil continuous cropping obstacle electric treatment machine can effectively kill root-knot nematodes in the soil by applying DC30-800 volts and currents of more than 50A.

You can't pour it directly on the roots, it will burn the vegetables to death.