Greenhouse fragrant sand

The greenhouse cultivation of the fragrant sand shovel can be carried out in the morning market for about 40 days, and the market price is 2-3 yuan per kilogram, which is significant in increasing production and income. At the same time, making potatoes in the fragrant sand line can make full use of resources and further improve planting efficiency. At present, this model has been promoted and applied in cooperative towns such as Qidong City. The main cultivation techniques are introduced below.

Xiangsha was fertilized in the greenhouse in the middle of January, and applied 1000 kg of organic fertilizer per mu and 20 kg of compound fertilizer. After the land preparation, the ridges are ridged, the ridge distance is 70-80 cm, the groove width is 40-50 cm, and the depth is 25-30 cm. Choose a disease-free, no wound, top buds full, a single weight of about 30 grams of the scorpion to do so. The soil in the furrow is turned loose and fine, and the seed buds are placed upwards. The plant spacing is 35 cm, and about 3,000 plants per acre are planted. After planting, the water is covered, and the soil is covered with 2 to 3 cm thick, and the mulch is covered. Before the emergence of the seedlings, the film is not ventilated; after the emergence, the shed temperature is maintained at 28-30 °C during the day and 15-18 °C during the night; after the planting, the shed temperature is maintained at 25-28 °C during the day and above 15 °C during the night. The fragrant sand stalks are applied 3 to 4 times in the whole growing season. Generally, when the seedlings have 2 to 3 true leaves, 500 kg of diluted manure water is applied per acre for seedling fertilizer.

When the seedlings have 5 true leaves and enter the hair growth period, 1000 kg of manure and manure per mu, and 100 kg of decomposed cakes are used as the fertilizer. After fertilization, the first small soil is used; in the seedlings, there are 7 to 8 true leaves. When the underground bulb begins to expand, re-expand the large fertilizer, use 50 kg of compound fertilizer per acre, mix 30 kg of ammonium bicarbonate and appropriate amount of grass ash, apply it between the two seedlings, and fertilize the soil for the second time to make the ditch and the ground. Qi Ping. The fragrant sand stalks and bulbs are inflated to enhance water management and keep the fields moist. The third time before and after the summer heat, the soil height is 15-20 cm, so that the original ridge back forms a ditch of 10-15 cm deep and covers the straw to protect the ridge. In the middle of the growth of alfalfa, the roots and tubers are sprayed 2 to 3 times. The disease of fragrant sand mites mainly includes epidemic diseases and spoilage diseases. It can be controlled by spraying 65% sensible zinc wettable powder 500-600 times liquid or 75% chlorothalonil WP 600 times in the early stage of the disease; the pests mainly have red spiders. , Spodoptera litura, Bean Moth, cockroach, etc., can be controlled with suitable insecticides.

The potato was selected from Kexin No. 4 and other varieties. After sowing in the late January, the shoal was planted on the back of the ridge, and the ditch was 10 cm deep. The potato needs a large amount of fertilizer, especially phosphorus and potassium fertilizer. Therefore, it is necessary to apply enough base fertilizer to apply 1000 kg of organic fertilizer per mu. Cut the seed potatoes into pieces, each about 25 grams, with 1 to 2 buds. According to the plant spacing of 20 cm, the potato pieces are placed in the seeding ditch, and 25 kg of high-concentration compound fertilizer is applied as a seed fertilizer per acre. Pay attention to the fertilizer and seed separation, and cover the mulch after covering the soil. After the emergence of the seedlings, the seedlings will be released in time, and the seedlings will be applied early, and 7.5 kg of urea per acre will be applied. At the beginning of the potato, 10 kg of urea per mu is used to make the potato block to enlarge the fertilizer, and the potato is kept moist during the potato period. Potato diseases mainly include late blight and viral diseases, and pests mainly include ladybugs. Pay attention to timely prevention and treatment. The potato chips are harvested in time after maturity to ensure that the fragrant sand is ventilated and permeable, and the upper and lower leaves of the potato can be left in the field for green manure.