Can Guangdong taro and Fujian taro be grown in the middle and lower reaches of the Yangtze River?

Guangdong taro, fragrant taro and Fujian taro can be grown in the middle and lower reaches of the Yangtze River. High-yielding taro cultivation techniques:

1. Base selection. The soil is deep, loose and fertile, with easy drainage and irrigation, and sufficient sunlight for fields that have not been planted with taro in the first year (note: convenient drainage and irrigation is particularly important).

2. Land preparation. It is best to carry out deep plowing and fine preparation of the land before the end of the year. For example, when fields are tilled by machine, strive to make the soil finely broken and the soil loose. At the same time, the width of the carriage should be 1.1-1.2 meters, the width of the ditch should be 30 to 35 centimeters, the high border should be raised, and drainage ditches should be opened around it. There should be no water accumulated on the compartment surface to ensure that the soil is dry, otherwise it will affect planting production.

3. Planting time. The best planting time in our county is from the beginning to the end of February on the lunar calendar, and no later than mid-March.

4. Selection of seeds and disinfectants. Select seeds with regular appearance, no damage, plump bulbs, strong bud heads, and single fruit weight ≥20g for planting. Before planting, on a sunny or cloudy day, soak the selected taro seeds with agricultural zonithromycin and metalaxyl manganese zinc in a "water rooting agent in proportion" for 5-10 minutes, and then dry the water before sowing (conducive to disease prevention) and ensuring early and rapid growth of seedlings).

5. Apply enough base fertilizer and plant reasonably densely. On a sunny day before planting, apply 1,000 to 1,500 kilograms of farmyard soil fertilizer or 50 kilograms of compound fertilizer per acre in the plowed fields. Sprinkle it in when the rake is plowed, and at the same time, raise the high furrows and make the furrows wide. 80 to 90 cm, border height 20 to 35 cm, trench width 30 to 35 cm; when planting on sunny days, dig row trenches or double transverse trenches for planting, and plant two rhizome seeds in row trenches. The spacing between plants on the border is 40 cm, and the spacing between rows is 30 to 35 cm. Plum blossom piles are planted in Henggou, with 3,000 to 4,000 plum blossoms planted per 667 square meters. Plant one taro seed per bunch at a depth of about 10-15 cm. When transplanting and planting, the top buds of the taro should be upward, and the taro should be planted at the edge of the hole. When the taro is planted, cover it with 2 to 4 centimeters of finely crushed soil. At the same time, it can be covered with decomposed pig and cow dung. Finally, apply 1.5-2 kg of carbofuran or ground bug per acre on the soil surface, ditch edges and field ridges to prevent underground pests from harming taro buds. At the same time, clear the soil in the ditch.

6. Proper fertilization and weeding. When the seedlings emerge and one leaf is fully expanded, start topdressing with 0.3 ammonium bicarbonate or decomposed thin human feces for the first time, once every 5-7 days, and water the seedlings three times in a row. When the taro leaves grow 5 leaves, the taro growth enters the bulb expansion stage. Fertilization should be based on phosphorus, potassium, and calcium fertilizers. Apply 40-50 kilograms of 45 potassium sulfate compound fertilizer per acre. Make holes and apply deeply; later, the taro leaves Every time 4 leaves are added, apply a compound fertilizer with a total nutrient content of 45 once, and the dosage is the same as above. After the taro leaves enter the 12th to 13th leaf, fertilize according to the growth of the taro seedlings. If the growth is good, you can apply less or no fertilizer as appropriate. If the growth is poor, you can add 10 kilograms of potassium sulfate per acre (Note: When applying fertilizer deeply, do not damage the roots. It is best to keep the roots and fertilizer 2 to 3 inches apart. as appropriate).