When does broccoli usually sow? What are the key points of planting techniques?

Broccoli is what we call cauliflower, very people like to eat, whether it is stir-fried or cold, the taste is very crisp. There is a saying that the more green vegetables are, the higher the nutritional value is, and the color of broccoli is dark green, and its nutritional value is really not comparable to that of ordinary vegetables. In recent years, the economic benefit of broccoli planting has been improved, so when does broccoli usually sow? What are the key points of planting techniques? Let's find out together.

When does broccoli usually sow?

Broccoli is a vegetable variety that requires high growth temperature for light and drink, so it is very important to select suitable varieties before sowing. Early or medium-maturing varieties with strong adaptability to temperature, light and good commodity are generally selected.

Generally, we choose to sow broccoli in autumn, so that it can be sold on the market before and after the Spring Festival after winter growth. If it is seedling planting, you can choose March or July for planting, when the temperature is more suitable for seedling growth, generally three months can be harvested.

However, with the development of technology, the greenhouse planting technology is becoming more and more mature, so broccoli can basically be eaten all the year round, but there will be some differences in price. generally, the price is cheaper in the seasonal season, and a few are more expensive in the out-of-season market. of course, it doesn't prevent people from eating broccoli.

2. Key points of planting techniques of broccoli

1. Soil requirements

Broccoli is a vegetable that does not have high requirements for the soil. Generally, the soil can grow well, but in order to achieve high yield, it is generally recommended to choose soil or sandy soil rich in organic matter, good looseness, good drainage and PH of about 6.

2. Lighting

Broccoli is a vegetable that likes plenty of light. If there is not enough light, its growth and development may be abnormal, such as sparse flower heads and light color, which affects its quality and reduces the commodity value, so be sure to give enough light.

3. Temperature

The growth temperature of broccoli is different in different stages. The temperature of seed germination is 15-30 ℃, and the temperature of growth period is 8-24 ℃. The growth temperature is determined according to the variety during the period of flower head formation. We must master it clearly: early maturity 18-24 ℃, early-middle maturity 15-20 ℃, mid-maturity 13-18 ℃, late maturity 5-7 ℃. Too high or too low temperature will affect the formation of the bouquet, sunburn or frostbite is not good.

4. Watering

Broccoli likes to be wet, especially when forming a bulb, which will seriously reduce the quality of broccoli if there is a lack of moisture. Of course, too much water will produce rotten roots, summer dew and Rain Water also need to pay attention to, if accidentally infected with the bouquet will rot.

5. Fertilization

In addition to the basic fertilizer in the soil, the growth of broccoli needs a lot of fertilizer, and if there is enough nitrogen, phosphorus and potassium during the development of the bulb, the quality of the bulb is relatively high. If it is in a state of lack of fertilizer for a long time, the bouquet will crack or the leaves will turn yellow.

6. Pest control

The common pests of broccoli in autumn are aphids and cabbage insects, and the common diseases are soft rot, downy mildew, black rot and so on. In addition to the usual attention to prevention, the disease should be timely treatment, so as not to endanger the health of the plant.

In addition, the harvest of broccoli also needs to pay attention to some details, the harvest time should be early rather than late, if it is too late, it will blossom or disperse, generally the lateral corm is well maintained, it can be harvested 2-3 times in a row.

Time: 2019-03-13 Click: