Taro planting method and time

Taro is a kind of food that likes temperature and is not resistant to freezing, so it is planted in the south of our country. Taro is now very popular with consumers because of its edible value and delicious taste, which leads to the idea of growing taro. Then the first step is to consider when and how to grow it.

Taro planting method and time

The planting time of taro: the normal condition of taro is suitable for cultivation in spring, generally more in January-March (the Beginning of Spring), harvest in late summer or autumn (August-October).

The planting method of taro:

1. Soil preparation and fertilization: Taro has a wide adaptability to soil, and it is suitable for clayey soil with rich and deep soil and strong water retention. After the ground is finished, ditch is opened according to 80cm 100 cm row spacing, the ditch is 50 cm wide and 35 cm deep, and then fertilized in the ditch. Taro needs a large amount of fertilizer and has a long growth period. First of all, sufficient base fertilizer should be applied. 2000 kg of high-quality organic fertilizer and 60 kg of 48% potassium sulfate compound fertilizer should be applied per mu and ditched according to row spacing.

2. Sowing method: after drying for 3-4 days, the seeds without disease insects and without wound were arranged indoors, covered with 8-10 cm thick wet sand and kept at 20-25 ℃ at room temperature. After 20-30 days, the buds were 3cm long and 5cm long, and the ground temperature was stable at 10 ℃. Two planting ditches were opened on the border, with a distance of 30 cm and a depth of 7 cm. After enough water was poured into the ditch, the plant spacing was 33-40 cm, with 4500-5000 plants per mu.

Fertilization techniques of Taro

Taro has a long growth period, high yield and large amount of fertilizer, so it should be topdressing in different times in addition to applying sufficient basal fertilizer. The fertilizer can be applied once in the early stage of the seedling, 2-3 times in the early and middle stage of the peak period of seedling and corm growth, the amount of fertilizer is less before and after, and increases gradually, and the fertilizer of nitrogen, phosphorus and potassium should be applied together. In the later stage, topdressing should be controlled to avoid greedy green and late ripening. Applying compound fertilizer (N:P:K=15:15:15) 40ml 50kg per mu, calcium 100m 150kg per mu, and applying compound fertilizer (N:P:K=16:10:20) 75MU 100kg per mu, combined with weeding, soil cultivation and taro mulching with fertilizer mixed with water. Or under the premise of applying sufficient base fertilizer, thin biogas water or manure water can be properly applied in the early stage, and when taro grows to the beginning of June (3mur4 leaf stage), 1000 kg of farm manure, 15 kg of potassium sulfate, 50 kg of bio-organic fertilizer and 2 kg of boron, zinc and magnesium fertilizer can be applied to Xiangbian compound soil after composting for 3045 days. Before Greater Heat in mid-July (5mi 6-leaf stage), 25 kg of potassium sulfate compound fertilizer and 15 kg of potassium sulfate per mu were evenly mixed on the box surface, and the shallow soil was covered with fertilizer. Weeds should be pulled out around the field before fertilization. No more fertilizer will be applied after August. During the rapid expansion period of taro (June-July), it can be combined with the control of diseases and insect pests to spray inflated taro and potassium dihydrogen phosphate, which can promote the expansion of taro and increase its yield. The amount of topdressing during the whole growth period of taro is as follows: 30 kg of potassium sulfate, 30 kg of diammonium phosphate and 70 kg of ammonium bicarbonate.

The Fertilizer and Water Technology of Taro

Taro has large leaves and strong transpiration, so it likes water and avoids soil drying, otherwise it is easy to produce yellow leaves and withered leaves. In the early stage, due to the low temperature and small growth, it is only necessary to maintain soil moisture, especially in the seedling stage, so as not to affect the root and seedling emergence. In the middle and later stage, the temperature is high, the growth is large, and the water demand is large, so it is necessary to keep the soil moist, but the irrigation time should be in the morning and evening, especially in the high temperature season to avoid watering at noon, otherwise the leaves are easy to wither. Before fertilizing and uncovering the film, the surface of the box should be kept moist, waterlogging should be discharged in rainy days, dry in sunny days, horse water should be irrigated to keep moist in rainy days, 1 inch of water at the bottom of the ditch should be kept moist during the peak growth period (June-August), watering should be controlled 20 days before harvest, and irrigation should be stopped 10 days before harvest (before October).

Prevention and Control of Diseases and insect pests of Taro

Taro blight usually occurs in the plum drought season and midsummer, especially under white rain (also known as sunset water), sunny and rainy and hot and humid in the middle of summer are the most susceptible to the disease.

The main potions are:

1. Spray Bordeaux liquid. The production method is as follows: copper sulfate, lime and turpentine are 0.5 kg each, dissolve them with a small amount of water and mix them together, and then add 75 kg of water to spray the whole field, spray once every 7 mi 8 days, and spray 2 Mel 3 times successively, and the prevention and control effect can be more than 90%.

2. Spraying plants with 1000-fold solution of dimethazone, 110kg per mu, every 10m / m for 12 days, for 4 times in succession, can effectively control the outbreak of the disease.

3. There is a special effect of spray control with 80 ml of zhuangsu plus 100 grams of topiramate and 55 kg of water.

Generally speaking, early spring is the best time to plant taro every year, and taro likes fertilizer, so after site selection, it is necessary to apply some fertilizer to enrich the soil to ensure the survival rate of taro, and the management in the later stage is also very important. Pest control, water application and fertile land are also indispensable. Do a good job in these work in order to ensure the high yield of taro.