When planting small greens, how to scientifically fertilize and use medicines?

Many friends like to grow vegetables on the balcony, especially in winter. Nowadays, most farmers who grow vegetables on their balconies do not use ordinary soil, but use vermicompost or other substrates to grow vegetables. Many friends say that they don't grow well after planting vegetables, the leaves are small and yellow, and they don't know how to fertilize.

In winter, there is little sunlight, and many leafy vegetables such as lettuce, chrysanthemums, spinach, etc., are often planted on the balcony. The growth of green vegetables requires adequate water and nutrients. When we grow green vegetables in the open air, we usually apply base fertilizer at one time and rarely afterwards.

When planting on the balcony, in addition to the organic matter and trace elements in vermicompost that promote the growth of leafy vegetables, top dressing should also be carried out during the growing season.

When planting vegetables on the balcony, top dressing should be decided according to the growth of the plant, and nitrogen, phosphorus, and potassium should be applied in a balanced manner. There are two kinds of fertilizers that can be used for topdressing on balcony planting, one is nitrogen, phosphorus and potassium balance fertilizer, and the other is homemade enzyme solution fertilizer. Farmers can choose different fertilizers according to the situation.

The main topdressing method for balcony grown vegetables is foliar sprays. You can use nitrogen, phosphorus and potassium ternary compound fertilizer, seven or eight grams each time, add 30 kg of water, mix well and spray. The amount of fertilizer can be adjusted according to the growth of the vegetables.

Enzyme solution is a fertilizer made by adding brown sugar to rotten fruits and vegetables. It contains nitrogen, phosphorus, potassium, and small amounts of trace elements, which are beneficial for the growth of vegetables. The enzyme solution must be diluted before use, generally by 1:

500 ratio. The concentration of the stock solution is too high, and it is easy to burn the seedlings. Balanced fertilizer or enzyme solution can meet the growth of vegetables.

If there is an enzyme solution, it can be applied first, because this homemade foliar fertilizer can not only replenish nutrients, but also prevent insects and diseases after spraying, which is more suitable for home balcony planting.

Many farmers ask, when should vegetables be topdressed? After the vegetables grow their true leaves, the roots begin to grow downwards and the leaves grow rapidly. During this period, fertilizers are needed to replenish nutrients, ** the growth of vegetables.

Throughout the growing season, leafy vegetables should be topdressed according to their growing conditions. Some vegetables can only be picked multiple times for harvesting, and nutrients should be replenished in time after each harvest.

When growing vegetables on the balcony, there is a certain difference between growing vegetables on the balcony and growing vegetables on the soil. Some nutrients are native to the soil and can be absorbed by the root system. When planting on the balcony, master the management of water and fertilizer, so you don't have to worry about the growth of vegetables.

There are two issues to be paid attention to in fertilization. First of all, top dressing should be carried out at the appropriate time to meet the needs of vegetative growth. 2. When spraying foliar fertilizer, you can use balanced fertilizer or homemade foliar fertilizer.

The concentration of foliar fertilizer at the seedling stage should not be too high, so as not to affect the growth of plants.

Because the leaves are fresh and tender, small greens are more likely to attract green insects. When fertilizing, most of them also choose organic fertilizer, and if there are pests and diseases, you also need to choose mild potion. You can try mixing white vinegar and water in proportion and sprinkling it on the leaves of small greens to effectively remove green worms.

First of all, the use of base fertilizer, before I especially recommended the use of soil miscellaneous fertilizer, the main reason for the recommendation is that it is cheap, waste utilization, but in the later stage, due to the use of the process, soil miscellaneous fertilizer has many drawbacks, so it is no longer recommended to use soil miscellaneous fertilizer. [The disadvantages of soil miscellaneous fertilizer, the use of a relatively large amount of labor, because of the nutrient content is less, the use of less effect is very poor, but also relatively occupy the place, because the fermentation time is relatively long, so a separate place is needed for fermentation, so it is very troublesome] soybean fermentation fertilizer can be used as a base fertilizer, the effect is good, and then use 10 kg of compound fertilizer per mu, 5 kg of biological fertilizer.

If you want to get a high yield when growing vegetables in the countryside, then you don't need to plant too intensively, and it is best to mix these fertilizers with water when fertilizing, so that it can be more conducive to the absorption of vegetables. The key lies in the problem of light, after fertilization, there must be sunlight to make the vegetables grow better.

To control the concentration of fertilizer, do not use high-concentration fertilizer, and also pay attention to the type of nutrients. Do not use pesticides indiscriminately. It is necessary to pay attention to the prevention and control of pests and diseases.

When fertilizing, we must master the skills of fertilization, and also pay attention to the frequency and process of fertilization. Planting, temperature, light, environment, water and fertilizer.

When fertilizing, it is necessary to pay attention to the concentration not to be too large, to use well-rotted organic fertilizer, not raw fertilizer, otherwise it is easy to cause seedling burning; When fertilizing, we should pay attention to the combination of water and fertilizer, so that vegetables can be better absorbed, pay attention to the amount of fertilizer, try to do less and more, and supplement other nutrients in the fertilization process, such as nitrogen, phosphorus and potassium.