How long does it take to plant vegetables can be fertilized, and how long can you fertilize vegetabl

Leafy vegetables. Vegetables can be fertilized a week after planting, because leafy vegetables have high requirements for soil fast-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 should be topdressed in time, and farmhouse fertilizer needs to be applied every 15-30 days.

When nightshade vegetables have grown 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.

When the root vegetables grow to 4-5 cm, they can be fertilized for the first time. It needs to be fertilized with more nitrogen fertilizer in the early stages of its growth, as this can promote the growth of 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.

When fertilizing, you need to pay attention to the fertilizer should be far away from the roots, otherwise root burns are likely to occur.

phenomenon. If there are enough nutrients in the soil, you need to reduce the number of fertilizations.

1. Vegetables can be sprayed with foliar silicon fertilizer 10 to 20 days after planting; Choose a sunny or cloudy day to spray at about 4 o'clock in the afternoon (at this time, the light and temperature are suitable, which is conducive to crop absorption; If sprayed during the scorching sun and high temperature, the water will evaporate quickly, resulting in an increase in the concentration of fertilizer, which cannot be absorbed by the crop, and may even cause fertilizer damage); Dosage per mu: about 1-2 bottles of spray-rich foliar fertilizer, foliar spray with water 100-200 times, drone with water 10-20 times foliar spray, spray 1-2 times in the whole period, with an interval of 3-5 days each time.

2. Field management: the same as the field management of ordinary leafy vegetables.

Many people will grow some vegetables for their own family to eat, and if you want the vegetables to grow delicious, fertilization is very important. Many people don't know how long to fertilize, so how many days to fertilize vegetables?

Depending on the fertilizer used, the time between planting and fertilizing varies greatly. If it is liquid fertilizer applied, then it can be done once a week; If it is the manure of livestock at home, it can be fertilized every 20 days or half a month or so. At the same time, it is necessary to fertilize according to the growth of vegetables, if the growth state is better, it means that there are still certain nutrients in the soil, and you don't need to fertilize it first.

When applying fertilizer, it should be applied in small amounts, and not excessive fertilizer. In fact, the range of fertilizers used in vegetables is very wide, in fact, the soil itself contains many kinds of fertilizers, just like people need to supplement protein, vegetables need to supplement basic elements such as nitrogen, phosphorus, potassium and so on.

The number of days of fertilization depends mainly on the fertilizer used, and the interval between different fertilizers varies greatly, generally every 20 days or about half a month, and it is best to apply it reasonably.

<> depends on the growth of crops, and it can be applied once every half a month.

Fertilizer application includes base fertilizer and root fertilizer. Base fertilizer: mainly organic fertilizer, which should account for the total fertilizer required by the crop in its lifetime.

Generally, the production of protected areas is better to chicken manure and pig manure with higher nutrient content, but it is necessary to pay attention to full decomposition, which will produce a higher temperature in the process of decomposition, which will kill the eggs and germs in the fertilizer. More importantly, high temperature decomposition will gradually convert the ammonium nitrogen in the fertilizer into nitrite acid to nitric acid, and this process is completed outside the shed, which can avoid the accumulation of damage to crops in the closed environment of the shed after being used in the ground. A large amount of organic fertilizer is used as the base fertilizer to provide a hotbed for the reproduction of microorganisms, effectively improving the ground temperature in the shed, and microgrowing.