How can Ma Yam be planted with high yield?

How to grow yam can be high yield? Please give an introduction to planting methods to plant yam to obtain high yield can refer to the following planting methods: First, select suitable varieties to choose strong disease resistance rod medicine, small white mouth and other excellent varieties. Second, choose the plot of high terrain, good drainage, deep sandy loam soil. Loosen soil and fertilize, dig deep grooves from north to south in the field, 30 cm wide and 120 cm deep, generally alternate furrows, easy to operate. When digging, the upper and lower soil layers are separated and stacked on both sides of the ditch. After turning and airing for a few days, the soil blocks are broken, the bottom of the ditch is flattened and compacted, and then the lower soil is filled respectively. When the upper soil is filled, 5000 kg of farm manure and 50 kg of ternary compound fertilizer are applied per mu. When filling 20 cm thick, it is necessary to tread once. Third, when the temperature is maintained at 12℃ and the ground temperature is stable above 10℃, it can be planted. The annual sowing period in the central part of our province is about mid-April. Select the hard yam tail at the top of the root tuber without disease as a seed block, the seed block length is 20 cm, 7 - 10 days before sowing, covered with wet sand, covered with plastic film, and germinated. According to 80 cm distance ditch, wide row spacing 80 cm, narrow row spacing 30 cm, planting depth 3 - 4.5 cm, plant spacing is generally 15 - 20 cm, yam tail according to the same direction tiled in the ditch, covered with soil flat ridge surface. Fourth, field management should select 1 - 2 strong buds for more buds, and remove the rest as soon as possible. If collateral branch is excessive, can remove base side tendril, retain upper side tendril. After July, a large number of zeroes formed, affecting the growth of underground tubers, and a part of zeroes should be picked off. After the emergence of yam, it is necessary to support the vine, and the height of the frame is generally 1 - 1.5 meters. Generally, 2-meter-long bamboo poles are used to insert herringbone frames in two rows of the same ridge respectively. The brackets should be firm to prevent the frames from being blown down by the wind in the later period. Early growth should be frequent intertillage weeding, generally every half month once, until the vine on the half frame so far. Generally in the upper half of the frame and full frame when the topdressing 1 time, urea 15 - 20 kg, can be appropriate to some potassium fertilizer or foliar fertilizer to improve stress resistance and improve yield. Yam is a drought-tolerant crop. In order to improve yield, it should be watered lightly 1 - 2 times in case of prolonged drought without rain. If it is rainy, it is necessary to remove the accumulated water in the border in time to prevent waterlogging. Pest control. Anthracnose is a common disease in the production of yam. Once a spot is found on the leaves, 50% mancozeb wettable powder 500 times or 50% carbendazim 800 times can be sprayed on the leaves in the early stage. Generally, it can be sprayed once in 7 - 10 days, 2 - 3 times. Nematode is a big pest of yam. The control method is generally to sprinkle 3kg of 5% meterphos granules evenly in the planting ditch. 5. Timely harvest of yam is generally harvested when the stems and leaves are all withered, and premature harvest, low yield and easy to break, affecting quality. The harvest time should be from late October to early winter. Generally harvest from one end of the ridge, first dig 60 cm square pit, people sit on the edge of the pit, and then use yam shovel along the side roots of yam 10 cm below the ground, shovel out the soil on the root side, until the bottom of yam ditch to see the tip of tuber. Finally, when the tip has been loosened with a shovel, hold the upper end of the yam seed with one hand, and shovel the lateral roots behind it upward along the tuber with the other hand until the root system of the yam seed sticking to the stratum is shoveled, so that a complete yam can be taken out. Store in the warehouse after drying slightly. When loading and transporting, handle with care, do not bruise or break, otherwise the value of the commodity will be affected. Click for more yam growing techniques Click for more vegetable growing techniques