What are the high-yield cultivation techniques of taro?

Taro, also known as chestnut, vegetable chestnut, ginseng, chestnut, Luan er, yellow chestnut and so on, is a kind of food widely planted in the south of our country. Let's learn about the high-yield cultivation techniques of taro.

High-yield cultivation techniques of Taro

1. Planting conditions

Taro needs high temperature and humid environmental conditions, and the large temperature difference between day and night is beneficial to the formation of corm, and the most suitable for corm formation is 28-30 ℃ in daytime and 18-20 ℃ at night. And dry taro growth period requires soil moisture, water taro growth period requires a certain water layer. The content of organic matter in the soil is high, the soil is loose and permeable, the thickness of the tillage layer is more than 13 cm, the soil PH is 8, and continuous cropping is avoided.

two。 Seed selection and sowing

Although both large and small tubers of taro can be used as seeds, large tubers are generally sold as commodities, and small tubers with a diameter of about 1.9 cm are reserved for seeds, with a stolon on the left and right, leaving a stolon with a length of more than 2-3 cm. Generally sow more seeds from January to March (the Beginning of Spring), and harvest in late summer or autumn (August-October). Using the open-line on-demand method, the soil is covered with flat beds after sowing, and the sowing depth is 6 cm-8 cm.

3. Watering

It is necessary to pay attention to not too much water in the early stage of planting taro, irrigate it in the middle stage of growth, and drain water before harvest in the later stage of growth. The highest water demand period of taro is in early July, because the external temperature is higher at this time, taro growers should pay attention to the supply of water at this time. The moisture in the soil should be kept dry in the first and middle of August. Drain all the water in the ditch about 15 days before harvest.

4. Fertilizer application

The period of great demand for fertility during the growth of taro is mainly in the seedling stage, stem expansion stage and mature stage. The seedling stage includes the process from seed stem germination to the early stage of tuber growth, when the fertilization motion is to spray foliar fertilizer to break the seed dormancy period, make it germinate and grow, and plant. On the other hand, the tuber growth period is the expansion period, which usually lasts for 45 days, and 80% of the yield is formed during this period, so a large amount of fertilizer is needed at this time, and fertilizer should be applied once, combined with foliar fertilization. The mature stage needs less fertility. To stop applying foliar fertilizer, the dormancy period can be as long as 4 months.

5. Pest control

Agricultural control measures such as crop rotation and crop rotation are used to control the occurrence of diseases, and physical control is used for pest control. In addition, a comprehensive manual eradication of weeds in the garden was carried out by loosening the soil before sowing and setting up the shed.

In the growth process of taro, we should also pay attention to the work of weeding in ploughing, and peel off the leaves in time to ensure its ventilation and nutrient supply.