How do you grow Dutch beans? What is the time and method of planting it?

Dutch bean has high nutritional value and good taste, and has been widely cultivated as a famous and high-grade vegetable variety. So how do you grow Dutch beans? What is the time and method of planting it?

I. time and method of planting Dutch beans

Dutch beans are generally planted by sowing.

The seedling age of spring precocious cultivation in greenhouse is generally longer, which is 30-35 days, and the physiological seedling age is 4-6 true leaves. The sowing date is determined according to seedling age, planting date and market demand. At the same time, it is also determined by the stubble time of the previous crop.

The solar greenhouse has the advantages of earlier sowing, longer harvest time and higher yield. The sowing time of early spring in solar greenhouse is generally from mid-December to early January of the following year, while sowing in winter is usually sown in the first and middle of October and planted in the first and middle of November. Autumn and winter stubble is usually sown in late September and planted in mid-late October.

Planting in four seasons can be realized in the middle and lower reaches of the Yangtze River. The cultivation of autumn sunshade net shed was sown from the first ten days of August to the end of August.

The open field cultivation in autumn was sown from late August to mid-September. In winter, the cultivation in the plastic film greenhouse was sown from October to February of the following year.

The open field cultivation in winter was sown from November to January of the following year. It is cultivated in open field in spring and sown from February to April.

The open field cultivation in summer was sown from the first ten days of May to the end of May. Summer sunshade net shed cultivation is sown from mid-May to mid-June, but considering the best season of its growth and development, it is mainly sowed from late September to early November and harvested from January to April of the following year, that is, the stubble of autumn sowing and spring harvest.

Second, how to grow Dutch beans? What are the main points of specific planting techniques?

1. Lighting

The growth of Dutch beans requires a lot of long-term light, because almost all varieties of Dutch beans can bloom earlier under long-term light, and if there is not enough light time, then the flowering time will be inhibited. Therefore, if you want to grow high-quality, early-maturing Dutch beans, you need to ensure that there is enough light time in the planting process, but some varieties are not strict about the light time. However, in the late podding period, it still needs a certain amount of light time, and the light intensity is also relatively large, but it should not be kept in a high temperature environment for a long time, and it is best to plant it in the spring and summer season.

2. Soil

Dutch beans have a strong ability to adapt to soil, whether sandy soil or clayey soil can grow normally. But if you want to get high-quality and high-yield Dutch beans, you still need to plant them in soil rich in organic matter and moderate PH value. Soil PH value has a great impact on Dutch beans, when the PH value is lower than 5.5, although Dutch beans can grow normally, but it will also increase the incidence of diseases and reduce the rate of fruit setting. Therefore, this kind of soil should be properly neutralized, pay attention to the water retention and drainage of the soil, the soil is not too much water.

3. Moisture

The growth of Dutch bean needs a lot of water, especially during the period of seed germination and emergence, if there is not enough water, the seed will not expand, which will affect the germination rate and emergence time. When it comes to the seedling stage, its water demand gradually decreases, and it is necessary to have a higher humidity content in the air when it blossoms in the middle stage. If there is not enough water in the growing period of the pod, and it will be exposed to high temperature and drought for a long time, it will cause the pod to mature early, which will have a great impact on the quality and yield.

4. Fertilization

The Dutch bean was irrigated with small water before flowering and applied with quick-acting nitrogen fertilizer. When the stem began to set pods, the amount of water was slightly increased and the phosphorus and potassium fertilizers were applied. The soil should always be moist at the peak stage of podding, and the watering was reduced at the later stage of podding, and the fertilizer was applied once per harvest.

5. Disease control

The main diseases of Dutch beans are powdery mildew and downy mildew, and the seeds can be disinfected with chemicals before sowing. After sowing, carbendazim and metalaxyl can be sprayed for control. If a diseased plant occurs, it should be pulled out and burned together with other diseased remains immediately, reduce the source of infection and bacteria, pay attention to the sanitary and wet temperature in the garden, and pull out weeds in time. Improper control of temperature and humidity is also one of the important reasons affecting the growth of bacteria.

6. Timely harvest

Because the growing season of Dutch beans is different from the way they are planted, the number of days of harvest is also very different. For example, when planting in summer, the growth rate of pea pods is faster because of the high temperature, and it only takes about half a month from sowing to maturity. But when planting in winter, the temperature is low, and it may take about a month from flowering to harvest. So we have to harvest according to your actual use of peas, for example, if you want to pick and eat Dutch beans, the pea pods have been bulged, and the fruit is felt to be bigger with your hands, so you can harvest it at this time.