1, soil: need to prepare the seedbed and field, can be in the sunny and windy and good drainage performance of the place to build a seedbed, and the field needs to be deep tilled and fertilization. 2, seed selection: the seed taro need to choose the top buds and bulb full of taro. 3, sowing: according to the rows of plant spacing of 10cm × 10cm for sowing, and in turn covered with wet sand and watering, when the buds grow to 3-4cm can be planted. 3-4cm can be planted.

First, taro planting high-yield technology the right way

1, soil

(1) seedbed

In the sunny and windy and well-drained place to build a seedbed, and then in the seedbed on the soil, the thickness of the soil in order to be able to sow stable taro for the right, the thickness of the general for the 10-15cm, and also need to be prepared to cover the seed taro or compost. Compost or fertile fine soil used to cover the seed taro.

(2) field

① the soil for deep turning, the depth is generally 30-35cm, and then fertilizer according to the fertility of the soil.

② The medium-fertile field was fertilized with 4000kg of high-quality rotted organic fertilizer, 30kg of urea, 45kg of calcium superphosphate, 30kg of potassium sulfate, 50kg of bone meal, 1.5kg of borax and 2.5kg of zinc sulfate.

③ High-fertility fields should apply 3000kg of high-quality organic fertilizer, 20kg of urea, 20kg of calcium superphosphate, 20kg of potassium sulfate, 50kg of bone meal, 1.5kg of borax, and 3.5kg of zinc sulfate.

④ Note: About 7 days before planting, you need to turn the soil again and open the furrow to prepare for sowing.

2, select seeds

Select the top bud full, bulb full and complete shape of the taro as seed taro.

3, sowing

(1) can be sown in accordance with the 10cm?10cm row spacing, in the seedbed in general can be sown 100-150kg / mu.

(2) After the seeding is completed, you need to spread the thickness of 8-10cm of wet sand to promote germination, and pour 1 time the temperature of 40-50 ℃ warm water, the room temperature will be maintained at 20-25 ℃.

(3) wait 20-30 days when the buds grow to 3-4cm, can be 5cm from the ground at the soil temperature stabilized at 10 ℃ for transplanting and planting.

4, planting

(1) in the planting transplanting, you need to first seedbed side of the seedbed soil stripped, and in order to move out of the taro seedlings for planting, different methods of planting, plant spacing and row spacing is also different.

(2) If you take equal spacing cultivation mode cultivation, plant spacing is generally in the 30-40cm or so, row spacing is generally in the 70-80cm or so; if you use wide and narrow rows of cultivation mode, the large row spacing is generally in the 70-80cm or so, the small row spacing is generally about 25cm, will be controlled by plant spacing in the 30-40cm, acres of planting 3,500-4,500 taro seedlings.

(3) after the completion of planting cover the thickness of 3-5cm of soil, so that the seed taro buds slightly exposed.

5, fertilization

(1) seedling fertilizer

From seedling to 4 leaf period, mu of 500kg of human dung water, or 4kg of compound fertilizer and 10kg of urea diluted with water 200 times drenching, note: the application of human dung water, dry taro, the concentration of 20% of the application of taro water taro, 40% of the concentration of the application of taro.

(2) hair tree fertilizer

When the seed taro began to tiller, generally in late April mu Shi 50-75kg peanut bran, 500-700kg rotted hog manure, followed by covering 1 layer of soil.

(3) taro fertilizer

When the new ball began to expand, generally in late May mu Shi 50-75kg peanut bran, 30% of the rotted human and animal manure 500-700kg, but also 3-4kg compound fertilizer, as well as urea diluted in water 200 times, sprinkled on the roots.

(4) Sun taro fertilizer

When the sun taro grows one after another, generally in late June mu Shi 500-750kg of human feces, usually in the two taro between the hole, note: dry taro applied concentration of 30%, water taro applied concentration of 50%.

(5) strong taro fertilizer

When the taro leaves begin to fall yellow, usually in late July mu Shi 50-75kg peanut bran, 7-10kg compound fertilizer, can be in the two taro between the hole.

6, water management

(1) Try not to water before the emergence of seedlings.

(2) In the pre-growth period, just keep the soil moist.

(3) in the taro growth period and bulb expansion period need to provide sufficient water, in the morning and evening from the border ditch water, the implementation of dipping irrigation on the field, and in the irrigation needs to be drained after the field water to keep the soil moist, usually in October, there is no need to re-watering.

7, soil cultivation

(1) from early June, every 20 days or so to cultivate the soil 1 time, mainly: cultivate the thickness of the soil needs to gradually increase, *** cultivate the soil 2-3 times, can be carried out in the pursuit of the Sun taro fertilizer and strong taro fertilizer.

(2) the follow-up Sun taro fertilizer when the soil thickness is generally 5-7cm, and in the follow-up of the strong taro fertilizer when the soil thickness is generally 7-10cm.

8, cut the axillary buds

Usually when the axillary buds grow to 2 leaves and 1 heart, you need to cut in time to cut or cut off, cut the axillary buds early, cut the axillary buds too late, and did not cut the axillary buds will be consumed nutrients, is not conducive to the expansion of the sub taro.

9, late management

Generally when the soil moisture exceeds 85% need to clear the ditch leaching in a timely manner, in the harvest 20 days before the water stop.

10, harvest

(1) Harvesting of taro: generally in late August to late September in sunny days when the soil is dry and loose harvest, to the yellowing of the leaves withered, withered roots for the harvest period.

(2) harvest taro seed: generally in early October, the ground 10-15cm leaf stem cut off, usually wait 1-2 days after the wound healing can be harvested.

Second, taro planting distance and depth

1, the distance as well as the depth

The general planting of taro row spacing of 60cm, plant spacing of 25-30cm, the depth of sowing 25-30cm.

2, planting of taro, how to prevent and control pests and diseases

(1) insect pests

① available 5% chlorothalonil 1000 times dilution, or 1.5% Amino abamectin benzoate spray control taro oblique night moth.

② Spray with 10% chlorpyrifos emulsion + imidacloprid to control red spider and aphids.

(2) diseases

① taro epidemic disease available 50% allylmorpholine water-dispersible granules 1000 times diluted solution spray control, also available 58% methomyl manganese zinc wettable powder 300 times diluted solution mixing, and there is also the effect of increased yield. Usually pay attention to clean the field, need to choose disease-resistant varieties and reasonable crop rotation, intercropping sets of seeds.

② prevention and control of rotting disease can be 0.5kg of thiophanate-methyl + potassium dihydrogen phosphate (5kg per 667 square meters) with watering irrigation irrigation roots.