Scientific planting technology of taro in Lipu

Lipu taro is named because its origin is Lipu County, Guangxi. Lipu taro is bigger than ordinary taro, and rich in nutrition, more delicate taste, known as the "king of taro" laudatory name. Because Lipu taro is very popular in the market, there are broad prospects for planting Lipu taro, attracting many people to plant it.

Scientific planting technology of taro in Lipu

1. Soil preparation and trenching. After the ground is ready, ditch is opened according to 80-100 cm row spacing, ditch width 50 cm, ditch depth 35 cm, and then fertilize in the ditch.

2. Fertilization. Taro needs a large amount of fertilizer and has a long growth period. First of all, it is necessary to apply sufficient base fertilizer, 2000 kg per mu of high-quality organic fertilizer, 48% potassium sulfate compound fertilizer (16-16-16), 60 kg, and trench according to row spacing. Topdressing should be applied in different stages, including 2-3 times in seedling stage, rosette stage and corm growth stage, and mainly phosphorus and potassium fertilizer.

3. Sow seeds. The sowing time is in the lower ground after the Qingming Festival (that is, early April), the distance between the plant is about 50 cm, the seed and the ground is 3-5 cm, and the covering soil is 5 cm thick. It can also be cultivated with plastic film mulching.

4. Watering. Taro avoid dry soil, yellow leaves, withered leaves in case of drought, but the soil is too wet and stagnant water is also detrimental to root growth. Make the soil moisture sufficient at the seedling stage, and avoid watering it. In the seedling stage, the soil is dry and wet, and drainage should be paid attention to in case of rain.

5. Cultivate the soil by ploughing. At the seedling stage, combined with topdressing, the middle tillage killed the warm grass, and at the end of the seedlings, the cultivation ditch was flattened. After that, the soil was cultivated for more than 20 days, with a thickness of 7 cm, for a total of two times. The purpose of soil cultivation is to inhibit the terminal bud germination and growth of son taro and sun taro, reduce nutrient consumption, make taro fully expand and produce a large number of adventitious roots, and increase the ability of drought resistance. As the agricultural proverb says, "Taro is not cultivated, it is not planted." Combined with soil cultivation, according to the leaf area distribution density and season, the excess lateral buds should be removed as soon as possible so as not to consume nutrients and limit the growth of taro.

Requirements for Environmental conditions of Lipu Taro

1. Temperature requirements. Taro originates from high-temperature and humid zone, and some cultivation types have been formed in the long-term cultivation process, such as water taro, water and drought taro, dry taro and so on. However, both water taro and dry taro need high temperature and humid environmental conditions. The corms of taro with 13-15 ℃ began to germinate, and the optimum temperature for growth was 20-25 ℃ at seedling stage and 20-30 ℃ at seedling stage. The large temperature difference between day and night is beneficial to the ball.

2. The requirement of light. Taro is resistant to weak light and the requirement of light intensity is not very strict. It grows well under scattered light, and short-day conditions are required for the formation and expansion of bulbs.

3. Requirements for soil. Water taro is suitable for growing in water, so it is necessary to choose paddy field, low-lying land or ditch cultivation. Although dry taro can grow in dry land, it still maintains the ecotype of marsh plants and should be planted in humid areas. Taro is a fertilizer-loving crop, and its corm is formed in the underground soil layer, so loam or clay loam with rich organic matter and deep soil layer should be selected, with soil organic matter 1.05%, available nitrogen 62.5ppm, available phosphorus 11.25ppm, available potassium 62ppm, pH 5.5-7 is the most suitable.

Control of main diseases and insect pests

1. Taro blight. It is a fungal disease, which is mainly harmful to petiole, leaf and corm. The peak of the disease is from June to August. High temperature, wet or sometimes rain and sunny, easy to occur, excessive close planting and partial application of nitrogen fertilizer, exuberant growth, serious disease. Prevention and treatment is the main method. Before the onset of the disease, the drug can be used in the middle of May. Protective fungicides such as mancozeb can be used alternately with chloramphenicol, metalaxyl and Anke, and sprayed once in 7-10 days. When spraying, you should master the weather, choose to spray before the rain, and spray the liquid evenly on the back of the leaf, leaf surface and petiole.

2. Soft rot. It is a bacterial disease that harms the base of underground corms and petioles and can occur throughout the growing period. Prevention and treatment: strengthen the management of fertilizer and water, remove the diseased plants and take them away in time, and sprinkle lime around the disease points at the same time. Chemical control: agricultural streptomycin and chlorothalonil can be used to irrigate the root, and it can be applied once before fertilization, after soil cultivation and after cutting taro. At the same time, agricultural streptomycin should be added every time in the areas where the disease is serious all the year round, so as to strictly prevent underground pests and control water.

3. Taro dirty class disease. Only for damage to leaves, control methods: chlorothalonil and thiophanate-methyl can be used to control the disease at the initial stage, and then sprayed once every 7-10 days.

Harvest and storage

Generally, it can be harvested when it enters the Frosts Descent season. Irrigation is stopped 20 days before harvest, and it is better to harvest after the dew is dry in sunny days. Taro was harvested when the yellow root and withered corms were fully mature before and after Frosts Descent, which had a great effect on the yield. The remaining seed taro must be fully mature before it can be harvested, cut off the aboveground part before harvest, and harvest in a sunny day after the wound is dried and healed. Seed taro should choose a disease-free, mechanical wound-free bulb with a weight of about 50 grams. After drying for a day, store the taro when the taro is naturally air-dried, put the taro upside down, put a layer of taro, covered with a layer of fine sand, can be placed in single or multiple layers, and pay attention to remove damaged or diseased taro to avoid infection. The suitable storage temperature is 10-15 ℃ and can not be frozen. Remove the excess taro after harvest and pay attention to avoid damage caused by collision and friction during harvest, handling and storage.

Lipu taro is deeply loved by everyone, and it is also a best-selling product on the market, with an average price of more than 3 yuan per jin, making it a "bellwether" among many taro. So it is profitable to grow Lipu taro, and it may also lead you to the road to get rich.