Technical points of alfalfa planting and management

Alfalfa is a perennial flowering plant of Leguminosae, which has a wide range of distribution in China. Alfalfa used to be a kind of forage grass, mainly for pigs and cattle. However, alfalfa is also a kind of Chinese herbal medicine with high efficacy, which has the effects of clearing spleen and stomach, lower bladder stones and so on. Now that there is a certain planting area, how to manage it when planting alfalfa? Let's make a brief introduction to it by the editor.

1. Ploughing and weeding

Weeding is an essential management work when planting alfalfa, and weeding usually needs to be started at the seedling stage. Because the growth ability of alfalfa in seedling stage is relatively weak, if it is not weeded in time, weeds will rob the growth nutrition of alfalfa, resulting in growth hindrance. And after the summer harvest, the temperature and humidity are high and the weeds grow fast, so weeds should be weeded in time at this time.

2. Check seedlings and replenish seedlings

After sowing alfalfa, it is necessary to do a good job in sowing management and improve the germination rate of alfalfa. Then after the successful emergence of alfalfa seedlings, we should often observe the growth of alfalfa, while removing weeds, we should do a good job of interseedling work. The principle of keeping the strong and getting rid of the weak is the principle between seedlings. Provide sufficient growth space for strong seedlings, and then observe whether there is a lack of seedling holes, if so, it is necessary to make up healthy seedlings with the same growth in time, which should not be carried out on a sunny day.

3. topdressing at the right time

Although the growth ability of alfalfa is relatively strong, adequate nutrition can further improve the growth, yield and quality of alfalfa. Therefore, in the process of planting, we should pay attention to the work of topdressing and control the amount of the most fertilizer according to the fertility of the soil and the amount of base fertilizer. Every year, the top dressing of alfalfa is carried out during the green period and after harvest, and the fertilizers are mainly phosphate fertilizer, urea and so on. Provide sufficient nutrition for the next crop of alfalfa to avoid yield decline.

4. Watering in time

Alfalfa has a large demand for water during the whole growth period, so we also need to do a good job in water management. Pay attention to observe the soil condition in the field and water it in time when it is found that it is dry. But at the same time, we should also pay attention to precipitation, if the precipitation is enough, then we can appropriately reduce the watering frequency, and if the continuous rainy season, but also do a good job of drainage. To prevent excessive moisture in the field, resulting in waterlogging of alfalfa, leading to retting root rot, affecting the normal growth.

5. Pest control

Pest control is a very important management work in the process of planting alfalfa. Otherwise, the yield and quality of alfalfa will be seriously affected. The common diseases and insect pests of alfalfa are aphids, ground tigers, leaf spot, powdery mildew and so on. Insecticides should be used reasonably to avoid damage to alfalfa. The prevention and control of diseases is based on prevention, not only to do a good job of soil preparation, seed disinfection, but also to strengthen management, reasonable harvest and storage.

The above is a brief introduction to the technical points of alfalfa planting and management. Alfalfa pest control is very important. Avoid it as far as possible, otherwise it will have a certain impact as long as it occurs, so we should pay more attention to it. That's all for today's introduction. This article is for reference only. I hope it can help you all.