A, seed ginger treatment

1, sun ginger and trapped ginger: about 1 month before sowing, the average temperature of 10 ℃, take out of the storage of ginger seeds, the first water to wash out the soil, drying 1-2 days, and then the seeds of ginger indoors in the pile of 3-4 days, covered with straw thatch for trapped ginger. Sun ginger and trapped ginger alternately 2-3 times, will begin to germinate.

2, choose seeds: choose ginger fat, plump, shiny, yellow flesh, unfrozen, no pests and diseases of robust ginger for seed.

3, germination: to basket ginger around the wheat grass to keep warm, placed in the air relative humidity 80-85%, temperature 22-28 ℃ warm place germination.

Two, land preparation and fertilization

Select the deep soil, loose and fertile dry field, before the crop after the harvest, deep tilling 25-30cm. ditching before sowing as a ridge, using furrow sowing east-west ditching, ditch spacing of 50cm, ditch depth of 10cm. basal fertilizer into the ginger ditch south of the fertilizer ditch, acres of soybean cake 150-250 pounds, ammonium carbonate 30-40 pounds or rotting stable fertilizer 1-15 million pounds, grass ash 150-200 pounds. The first is the one that has been used for the first time in the past few years, and the second is the one that has been used for the first time in the past few years.

Three, sowing

1, sowing period: that is, in early to mid-April, the ground temperature stabilized at 16 ℃ or more.

2, sowing amount: 1 pound per square meter.

3, density: 7000-9000 plants per mu.

4, sowing methods and techniques: choose sunny and warm weather sowing, each seed block to retain 1-2 short strong buds, remove the rest of the weak buds, eliminating the cross-section of the blackened diseased ginger. Sowing should be first watered down the ditch. Place the seed block buds horizontally facing south or southeast in the furrow, and gently press the seed block into the soil so that the ginger buds are level with the soil surface. Cradle flat ditch surface, mulch 4-5cm. conditions can be used as a small arch cover film. Arch height 10-15cm.

5, shade: after sowing in the south side of the ginger ditch with cereal grass inserted into a sparse flower Gracilaria or insert a line of Quercus branches (or cornstalks) for ginger seedlings shade. Gracilaria 70-80cm high, slightly tilted to the north. Conditional with shade net shade.

6, fertilizer management: seedlings can be watered 1-2 times, and then plowing to maintain moisture. Seedling period must not lack of water. Morning and evening small water watering, 3-4 days before harvest watering 1 time. So that the ginger block with mud under the kiln storage.

Four, pest control

1, ginger rot disease: agricultural control measures, supplemented by pharmaceutical control, cut off the transmission pathway, pulling out diseased plants, digging out the soil with bacteria, withdrawal of lime, as far as possible to control the occurrence and spread of the disease.

2, ginger spot disease: pay attention to crop rotation, avoid ginger field crop, with 70% thiophanate-methyl wettable powder 1000 times liquid plus 75% Chlorothalonil wettable powder 1000 times liquid, or 40% polysulfide suspending agent 500 times liquid, or 50% benzoylmethane wettable powder 1000 times liquid 10-15 days spray, sprayed 2-3 times.

3, ginger stem borer: foliar spraying 40% poisonous death of Ben emulsion 1000 times, or 2.5% deltamethrin emulsion 1500 times, or 2.5% pyraclostrobin 1000 times.

4, ginger maggots: selected ginger seeds, found that the infested seed ginger immediately eliminated. Soak the seed ginger with 1.8% Aifodin emulsion 1000 times solution for 5-10 minutes to eliminate the transmission of pests to the field.