A, taro high-yield cultivation techniques

1, land preparation

(1) seedbed

Select sunny and windy, well-drained place to establish a seedbed, and then in the seedbed spread the soil, the thickness of which can be sown steadily taro is appropriate (10-15cm), and ready to cover the seed taro compost or fertile fine soil.

(2) large field

Deep plowing and deep turning of the land (depth of 30-35cm), for the medium fertility of the field, per mu of land to apply 4,000kg of high-quality rotting organic fertilizer, 30kg of urea, 45kg of superphosphate of calcium, 30kg of potassium sulfate, 50kg of bone meal, 1.5kg of borax, 2.5kg of zinc sulfate; for the high fertility of the field For higher fertility fields, apply 3000kg of high quality rotted organic fertilizer, 20kg of urea, 20kg of calcium superphosphate, 20kg of potassium sulphate, 50kg of bone meal, 1.5kg of borax, and 3.5kg of zinc sulphate per mu. When it is about 7 days before planting, turn the soil again and prepare to open the furrow for sowing.

2, sowing

Selected from the seed taro in the top buds full, bulb full, complete shape of taro sowing, generally 100-150kg per acre of seedbed (according to the 10cm × 10cm rows spacing); after sowing, in the seed taro on the laying of 8-10cm-thick wet sand germination, and in the sand poured once again 40-50 ℃ warm water; at the same time, keep the room temperature at 20-25 ℃, wait until 20-30 days after the buds grow to 3-4cm, 5cm from the ground at the soil temperature stabilized at 10 ℃ when transplanting and planting.

3, planting

planting transplanting, from the seedbed side of the seedbed soil peeled away, according to the order of taro seedlings out of planting. If you take equal spacing cultivation, plant spacing control in about 30-40cm, row spacing control in about 70-80cm, each acre of land planted 3,000 taro seedlings; if you take wide and narrow rows of cultivation: large row spacing of 70-80cm, small row spacing of about 25cm, plant spacing control in 30-40cm, each acre of land planted 3,500-4,500 taro seedlings. After planting, the taro seedlings covered with 3-5cm thick soil, so that the buds of the seed taro slightly exposed can be.

4, fertilizer

(1) seedling fertilizer: after the emergence of seedlings to the 4-leaf period, each acre of land to apply 500kg of human urine water (dry taro to apply the concentration of 20%, water taro to apply the concentration of 40%), or the use of water soluble fertilizer Wo Ye.

(2)Fertilizing fertilizer: when the seed taro begins to tiller (late April), apply 50-75kg of peanut bran and 500-700kg of rotted pig manure per acre, and cover with a layer of soil after applying the fertilizer.

(3) ZiYao fertilizer: when the new ball begins to expand (late May), apply 50-75kg of peanut bran, 500-700kg of rotted human and animal manure (30%) per mu; or use water-soluble fertilizer.

(4) Sun taro fertilizer: when the sun taro one after another (late June), per mu of land to apply 500-750kg of human manure (dry taro to apply the concentration of 30%, the water taro to apply the concentration of 50%), usually in the two taro between the hole application.

(5) strong taro fertilizer: when the taro leaves begin to fall yellow (late July), per mu of land to apply 50-75kg of peanut bran, 7-10kg of composite fertilizer, between two taro hole.

5, water

Try not to water before the emergence of seedlings; in the pre-growth period, only need to keep the soil moist can be; to the taro's growth period (May-July) and bulb expansion period (July-September) need to ensure that there is sufficient water. Specific practices are: morning and evening from the border ditch water, the implementation of dipping irrigation of the field, irrigation after draining the field water, to keep the soil moist. By October, there is no need for further irrigation.

6, soil

From the beginning of June every 20 days or so to cultivate the soil 1 time, each time the thickness of the soil gradually increased, a **** cultivate the soil 2-3 times (after the application of Sun taro fertilizer and strong taro fertilizer). The thickness of the cultivated soil is 5-7cm when applied posthumously, and the thickness of the cultivated soil is 7-10cm when applied posthumously to the strong taro fertilizer.