Soil preparation and planting of directional trough shallow planting in Hu Aishan Mountain
Sandy and clayey soil can be used, but loam with rich organic matter and loose soil is the best. Ridges are raised in a single row, and the ridge width is about 180cm (ridge width 140cm, drainage ditch 40cm). Dig a small ditch with a spacing (plant spacing) of about 30cm and a width of about 6cm with a small hoe, which is slightly inclined, and the included angle with the ridge surface is about 15, that is, the upper end is about 10cm deep. After digging the parallel inclined ditch, put it into the U-shaped directional groove (length, width and depth are 105cm×6m×3cm, and farmers can choose different models according to their needs). When placing the tank, ensure that the soil at the bottom of the tank is flat, the tank body is free from bending and twisting, and there are no hard objects such as hard mud blocks and stones in the tank, and the end with drainage holes in the tank is facing down. After placing the U-shaped groove, cover it with a thin layer of soil and leave a mark on the upper end of the groove as the planting target.
Seed selection and germination accelerating technology of shallow planting in directional trough in Hu Aishan mountainous area
Choose healthy potato pieces, cut into pieces, each piece is about 30 ~ 50g, soak them in solution such as potassium permanganate or carbendazim wettable powder for disinfection, and then take them out to dry to accelerate germination.
Hu Aishan directional groove shallow planting method
After the seeds are sterilized and germinated, they can be planted from May to July, but it is best to plant them before June, which is beneficial to the growth of seedlings. When planting, put potato chips with bud eyes facing up into the planting trough and cover them with thin soil.
Seedling management of shallow planting in directional trough in Hu Aishan mountainous area
After the emergence of Hu Aishan Mountain, buds will appear on the seed potato buds, and each plant will leave a vigorous branch bud to be dragged on the shelf, and the rest buds will be erased. At the seedling stage, ternary compound fertilizer (Sakefu 17: 17: 17 potassium sulfate type) should be applied appropriately to promote the healthy growth of seedlings. Apply little or no chemical fertilizer to the growing plots to prevent the branches and leaves from growing in vain.
Topdressing of shallow-planted potato in directional trough in Hu Aishan mountainous area at fruiting stage
10 or so, Hu Aishan began to enter the long potato stage, pay attention to topdressing in time to keep the soil moist. Fertilization is based on the principle of small amount and multiple times, and ternary compound fertilizer (Sakefu17:17 potassium sulfate type) or high potassium compound fertilizer is applied every 20-30 kg/mu. Soil with dry weather or high fertilizer and water retention can appropriately extend the fertilization interval.
Prevention and control of pests and diseases in shallow planting in directional trough in Hu Aishan mountainous area
In high temperature and high humidity weather, anthracnose, leaf spot and other diseases in Hu Aishan Mountain are mainly controlled by spraying mancozeb, thiophanate and prochloraz at the initial stage of the disease. The main pests in Hu Aishan are thrips and red spiders, so systemic pesticides should be sprayed evenly in time for control. It is suggested that pesticides with different action mechanisms should be used in rotation to avoid long-term use of a single pesticide.
Shallow planting harvest in directional trough in Hu Aishan Mountain
The harvest of Hu Aishan Mountain begins after New Year's Day and lasts until June. When harvesting, gently peel off the topsoil, take out the whole French fries, and take back the undamaged directional groove for the next planting.