Planting time and method of Taro

Planting time: open field cultivation can be in early March, plastic film cultivation can be before February. Planting method: it is appropriate to plant in a rich, deep, water-holding clay soil with 2000 kg of organic fertilizer and 60 kg of 48% potassium sulfate compound fertilizer as base fertilizer; then sow taro indoors and transplant when the buds grow to 3-4 cm. Taro should keep the soil moist in the middle and later stage of growth, and drain in time in the rainy season; ploughing and weeding should be carried out in the later growth period and harvested in time.

First, planting time

1. Taro avoids frost and likes to grow in a warm and humid environment, usually sowing after the local final frost.

2. If sowing early is easy to cause rotten seeds, the growth period of taro is relatively long, and the temperature is above 13-15 ℃ before it can germinate, so we can choose to start planting in the first and middle of March, and if it is plastic film cultivation, it can be planted before February.

II. Planting methods

1. Soil preparation and fertilization

The main results are as follows: (1) Taro has wide adaptability to soil, and the clayey soil with rich and deep soil and strong water retention is better. After soil preparation, the ditch is opened according to the row spacing of 80-100cm, the width of the ditch is 50cm, and the depth is 35cm.

(2) when applying fertilizer in the ditch, taro needs a large amount of fertilizer and its growth period is relatively long, so when planting, it is necessary to apply sufficient base fertilizer, high-quality organic fertilizer 2000kg and 48% potassium sulfate compound fertilizer 60kg can be applied per mu and ditched according to row spacing.

2. Sowing method

The main results are as follows: (1) the taro without diseases and insect pests and without wound was selected, dried for 3-4 days and then closely arranged indoors, then covered with 8-10cm thick wet sand to accelerate germination, keeping the room temperature at 20-25 ℃, waiting for 20-30 days, the buds grew to 3-4 cm and the ground temperature was stable at 10 ℃.

(2) two planting ditches were opened on the border, according to the furrow distance was 30cm and the depth was 7cm. Taro was planted after enough water was poured in the ditch. According to the plant spacing of 33-40cm, 4500-5000 plants could be planted per mu.

3. Watering management

The main results are as follows: (1) Taro does not need to be watered before emergence, but the soil should be kept moist in the middle and later stage, and it should be drained in time in the rainy season. About 80 days after emergence, it can be combined with watering to make a hole beside the plant to fertilize. The soil of planting taro should not be too dry. Yellow leaves and withered leaves will appear in dry weather.

(2) however, when the soil is too wet, stagnant water is also disadvantageous to root growth. It is necessary to make the soil moisture sufficient in the seedling stage, and water must not be watered. In the seedling stage, the soil needs to be dry and wet, and Rain Water should pay attention to drainage when there are more.

4. Cultivate the soil by ploughing.

The main results are as follows: (1) in the seedling stage of taro, intertillage and weeding warm ground can be carried out combined with topdressing. At the end of the seedling stage, the cultivation ditch can be ploughed again and leveled out.

(2) in the later stage, the soil can be cultured once every 20 days, with a thickness of 7cm, for a total of 2 times. Soil culture can inhibit the terminal bud germination and growth of taro, thus reduce the consumption of nutrients, make taro fully expand and produce a large number of adventitious roots, and improve the drought resistance of the plant.

5. Timely harvest

The main results are as follows: (1) Taro should be harvested in time after maturation. Early-sowing varieties in the Yangtze River basin are generally harvested from early September to early October, late-sowing varieties can be harvested from late September to late October, and mid-late varieties can be harvested from late September to early November.

(2) due to market demand, harvesting can also be advanced or delayed, but it is usually harvested before heavy frost, which is helpful to avoid freezing damage of taro.