Why is the way of topdressing vegetables determined by the way it is fruited?

Because if it has already borne fruit, it means that fertilizer is not needed, and the nutrition is sufficient, and if there is no fruit, it means that the nutrition is insufficient and fertilizer is needed.

Because of the different ways of fruiting, the different ways of growing crops, various topdressing methods have their advantages and disadvantages, and the topdressing methods are also very different, so special attention is needed.

For different vegetables, we will choose different fertilization methods, of course, the most important thing is to be suitable for the growth method of this crop. In fact, all kinds of fertilization methods have their advantages and disadvantages, and it is precisely because of this that we need to know how to choose the method of fertilization.

When planting vegetables in rural areas, it should be fertilized first and then cultivated, and the effect is better. The benefits are mainly reflected in three aspects: First, it can ensure that the fertilizer enters the soil during the cultivation process and prevents it from being washed away by water.

Second, it is inevitable that fertilizer will accumulate and not disperse when fertilization is applied first. Over time, the soil will clump and pests and diseases will occur during the growth of vegetables. The use of fertilization first and then cultivated land can effectively prevent the accumulation of fertilizer.

3. Add disinfectants in the process of fertilization, so that when plowing the soil, these disinfectants enter the soil with the fertilizer and play a role in disinfecting the soil. Therefore, it is better to apply fertilizer before planting and then disinfect.

The cultivation of the soil is also very scientific, due to the short growth cycle of vegetables and the high planting density. This puts a high demand on the soil. In order to facilitate the germination and growth of vegetables, it is necessary to divide the soil into multiple tillings.

First of all, a large area is cultivated once, and after the ploughing, a large piece of soil is broken up to prevent the germination of seeds. When using a ploughing machine, it is necessary to plow the land 3 to 5 times, which can ensure that the soil is soft and there are no large pieces of soil, and improve the seed germination rate.

Planting vegetables pays attention to fertilization first, and the choice of fertilizer is mainly organic fertilizer, which generally accounts for about 60% of the total amount of fertilizer. In particular, organic fertilizer will be selected for the base fertilizer, and the necessary fermentation should be carried out before the use of organic fertilizer to ensure that the fermentation is in place. Because if you don't ferment in advance, there will be a second fermentation after applying chemical fertilizers to the soil, and the heat generated by fermentation will burn out the capillary roots of vegetables.

Since the growth cycle of vegetables is generally two or three months, do not use long-lasting fertilizers. Nitrogen, phosphorus and potassium can be applied in small amounts during the growth process.

and other fertilizers to promote the nutritional balance of vegetables. At the same time, it is also necessary to apply a certain amount of foliar fertilizer to ensure the normal growth and development of vegetables.

To grow vegetables scientifically, it is necessary to cultivate land and fertilize reasonably. And generally fertilize first and then plough the land, and the use of fertilizer is generally to choose fermented organic fertilizer. Fermented organic fertilizer contains a lot of probiotics.

It can play a role in balancing soil nutrients. Although there are different ways to grow different vegetables, it is important to pay attention to science.

Fertilizer is applied first and then cultivated the land, because in this way, the fertilizer can be fully dissolved in the soil, which can effectively prevent the accumulation of fertilizer.

It is necessary to fertilize the land before cultivating the land, so that the organic content of the soil can be improved, which will make the plants grow better.

Be sure to fertilize first and then plough the land, which can improve the utilization rate of fertilizer and avoid being washed away by rain.

In recent years, many farmers will choose to grow their own vegetables to meet the needs of family diet, planting vegetables need to do a good job of management measures, such as fertilization is a very important work, the following is a detailed understanding of leafy vegetables, eggplant vegetables, root vegetables and precautions.

1.Leafy vegetables leafy vegetables can be fertilized a week after planting, because leafy vegetables have high requirements for soil quick-acting nutrients and are more sensitive, if there is a lack of nutrients, there will be a slowdown in leaf growth, and the leaves will turn yellow, so in the leafy vegetables to be topdressed in time, every 15-30 days you need to apply farmhouse fertilizer.

2.Nightshade vegetablesWhen nightshade vegetables grow to 3-4 leaves, they can be fertilized. In the seedling stage, more nitrogen fertilizer is needed, but too much nitrogen fertilizer will cause the plant to grow, so pay attention to the amount of nitrogen fertilizer.

After entering the growth period, the demand for phosphate fertilizer of nightshade vegetables increases, so it is necessary to reduce the application of nitrogen fertilizer and focus on increasing the application of phosphorus fertilizer and potassium fertilizer. When the fruit is done, it needs to be supplemented with fertilizer water after each harvest.

3.Root vegetablesWhen the root vegetables grow to 4-5 cm, you can apply fertilizer for the first time. It needs to be fertilized with more nitrogen fertilizer in the early stage of growth, as this can promote the growth of the leaves.

Potassium fertilizer needs to be applied in the middle and late stages of growth, and the amount of nitrogen fertilizer needs to be properly controlled at this time, because too much nitrogen fertilizer in the later stage will lead to the growth of vegetables, the yield will decrease, and the quality will deteriorate.

4.Precautions When fertilizing, you need to pay attention to the fertilizer should be far away from the roots, otherwise it is easy to cause root burns. If there are enough nutrients in the soil, you need to reduce the number of fertilizations.

For plots with soil pH less than 5 in vegetable plots, 50-100 kg of quicklime or 50-100 kg of soil conditioner should be sprinkled per mu one week before planting to increase soil pH and supplement calcium. When the symptoms of molybdenum deficiency appear in the middle and late stages of vegetable growth, foliar spraying with ammonium molybdate aqueous solution (can also be mixed with pesticides), sprayed once every 5-6 days, sprayed twice.

a. Farm manure contains a large number of microorganisms and organic matter, and its decomposition of farm manure produces carbon dioxide, which can increase the concentration of carbon dioxide in the greenhouse, thereby increasing the yield of crops, a correct; B. Planting vegetables should be planted reasonably and densely, if it is too dense, the plant leaves will block each other, and the organic matter consumed by respiration will increase, but it will reduce the yield, b is wrong; c. Photosynthesis is weak on rainy days, so it is necessary to reduce the temperature of the greenhouse, and less organic matter consumed by respiration is conducive to the accumulation of organic matter. d. Although the pigment mainly absorbs red light and blue-violet light, but it also absorbs other light, replacing the colorless plastic film with red plastic film, only allowing red light to pass through, but will reduce the photosynthesis rate of vegetables

A1Farm manure contains a large number of microorganisms and organic matter, and its decomposition of farm manure produces carbon dioxide, which can increase the concentration of carbon dioxide in the greenhouse, thereby increasing the yield of crops, a correct; 2.If the planting of vegetables should be reasonable and dense, if it is too dense, the leaves of the plant will block each other, and the organic matter consumed by respiration will increase, but the yield will decrease, b wrong; 3.

On rainy days, photosynthesis is weak, and the temperature of the greenhouse should be reduced, and less organic matter consumed by respiration is conducive to the accumulation of organic matter. 4.Although pigments mainly absorb red light and blue-violet light, but also absorb other light, using red plastic film instead of colorless plastic film, only allowing red light to pass through, but will reduce the rate of photosynthesis of vegetables

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