The ridge is fixed when the seedlings are 3 leaves and 1 heart, and the seedling age can be fixed when the age is 25 to 30 days. 3 to 4 days before planting, water is appropriately watered according to the soil moisture. When the soil surface is slightly dry, the ridge is ridged, the ridge width is 80 cm, and the ridge height is 15-20 cm. When planting, cover some grass curtains to cover the shade of flowers, planting in wide and narrow rows, one ridge and two rows, small rows of 80 cm, large rows of 100 cm, the ridges are finely flattened, and the dark ditch is opened on the ridge, the dark ditch is 10 cm deep. 15 cm wide. According to the plant spacing of 50 cm, the planting hole is dig, and the seedling water is 250-500 ml per well. Then the seedlings are taken from the nutrient mash (keeping the nutrient soil is intact) and planted in the hole, and the seedlings are 1600-2000 plants/mu. Management of pre-management after planting. Immediately after planting, pour a large amount of water, so that it should be poured thoroughly to facilitate rapid rooting. Immediately after water seepage, the soil should be cut to improve the permeability of the soil. It should be deep cultivating away from the seedlings. Multiple tillage can control the growth of seedlings and the differentiation of flower buds. Combined with cultivating, the ridge is refurbished and covered with a mulch 2 m wide and 0.006 mm thick. Hanging vines: When the plants are 8 leaves, hang the vines and tie the vines. When the whole branch is weak, the first vines are weak, and after the growth is strong, the vines are hanged for 1 to 3 days, so that the plants are tall and uniform, and they do not block each other. When hanging vines and tying vines, timely remove the side buds formed on the main vines. Falling vines: When the vines are high, the harvesting of the lower fruits should be timely, so that the plants and leaves are evenly distributed. When the vines are fallen, the leaves of the lower old leaves, yellow leaves and pests are removed. When removing the old yellow leaves, the wound should be kept away from the main vines to prevent the bacteria from infecting the wounds. Fertilizer management: Before the film is covered to the roots, it is generally not necessary to water and top dressing. At this stage, the fertilizer is lacking, and the foliar spray treatment can be carried out. After harvesting the first melon, the first water can be poured. Do not let the water flow to the mulch. With the water, a small amount of fertilizer can be applied. The nitrogen, phosphorus and potassium compound fertilizers are mainly used, and the application rate is about 30 kg. The biological fertilizer may be applied as appropriate. The second watering is generally carried out about 15 days after the first watering. Due to continuous harvesting, the consumption of nutrients is large. Therefore, the amount of fertilizer should be increased by the amount of fertilizer. The type of fertilizer is mainly potassium sulfate. 30 kg. In the deep winter season, the number of watering should be reduced, so that it does not dry or not, and it is poured every 5-7 days in the early spring, and ternary compound fertilizer is added every time. After entering May, the amount of watering is increased again, which can reduce the temperature. In addition, foliar fertilizer can be sprayed each time the spray is applied. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone ShaoXing SurgeCare Medical Products Co., Ltd. , https://www.sxsurgecaremedical.com
Greenhouse zucchini cultivation essentials
Selection of seedlings generally choose varieties that are resistant to disease, low temperature, high yield and quality. The amount of seed per acre is 300-400 grams. The treated seeds are constructed in a greenhouse to raise seedlings. The seedling bed temperature is maintained at 28 °C ~ 30 °C during the day before the seedlings are unearthed, and 16 °C ~ 20 °C at night. When 70% of the seedlings begin to be unearthed, the mulch film should be removed in time, and ventilation should be strengthened to reduce the temperature of the shed and prevent the seedlings from growing. The shed temperature should be controlled at around 25 °C. When the two cotyledons leave the ground, they should continue to increase the ventilation and even remove the whole shed film. The temperature of the shed should be around 20 °C. When the first true leaf is flattened, the hypocotyl height has been basically fixed. This period can increase the temperature. More sunlight is seen, which promotes the rapid growth of seedlings.