In recent years, I have used the winter exposing fields in Putian to successfully explore the efficient ecological model for pre-planting grasshoppers in the shed and planting geese in the later period. The average yield is 1500 kilograms per kilometer of shallow water and 140 geese can be grown, all of which can be in short supply in the market. When it was listed, it improved the land utilization rate and provided considerable economic benefits. First, establish a connection shed Each greenhouse shed to the east and west, shed width of 5 to 6 meters, shed height of 2.5 meters, sheds with stumps or cement columns as a bracket, bamboo for the arch, covered with ordinary agricultural film, with a rope pull Pressing the membrane, the sheds are connected to one another. Second, greenhouse cultivation 1. Seedlings planting selection of disease-resistant, high-yield, early-maturing shallow water clam varieties, such as E-lian 1, E-Lian No. 3, Wulian No. 4 and so on. The middle and lower reaches of the Yangtze River will be planted in early March and the base fertilizer will be applied (3000 kg/mu for mature manure or 100 kg/mu for cake, and 70 kg/mu for superphosphate). The planting depth should be shallow, with a spacing of 2 meters and a spacing of 1 meter. . Early shallow water layer 2 to 3 cm to promote early-onset; later to maintain the water layer about 5 cm, in the medium-term slightly deeper 8 to 10 cm, too deep unfavorable to increase the temperature of the soil; in mid-May period to maintain the water layer 5 cm, too deep Unfavorable nutrient accumulation and stem enlargement. 2. Closed thermal insulation in the early stage of temperature regulation. In case of low temperature and cold water, thermal insulation is required. When the greenhouse temperature exceeds 35°C during the day in late April, the sheds must be opened for ventilation and cooling, and closed at night. At the end of May, if the temperature stabilizes above 20°C on that day, plastic film can be removed. Before the removal of the film, the seedlings must be cultivated and selected to be carried out in the evening on a sunny day (method: the daytime vents should gradually increase and the nights should not close). 3. Topdressing for the first time in the growth of 1 to 2 leaves when the urea 10 ~ 15 kg / acre, the second time in the growth of 5 to 6 leaves when the compound fertilizer 25 kg or so to promote scab. 4. Harvest In early June, 400 to 500 kg/mu of fresh oysters can be produced, which can be listed one after another. In late July, it will be fully dug and listed and can produce 2,000 kg/mu. Third, greenhouse cultivation 1. Sowing in late July Putian leveling, combined application of compound fertilizer 40 kg / mu. Select one year old Leguminosae Rudbeckia vulgaris and one year old Gramineae and multi-flowered ryegrass for sowing. This fresh grass has soft stems and leaves, good palatability, and no swelling disease will occur after large amounts of geese are eaten. Ziyunnyin is sown with warm water and soaked before sowing. 24 hours, or rub treatment to increase the germination rate. The sowing rates were 1kg/mu for Ziyunying and 1.5kg/mu for Lolium multiflorum. Rhizoma tubercens was mixed with rhizobial bacteria first, mixed with fine soil, and then mixed with ryegrass and phosphate fertilizer, then sowed or sowed. If there is water in the field, the seeds can be thrown into the thin layer of shallow water in Putian. After 2 to 3 days, germination will drain the water. After 1 to 2 days, the soil shall be covered with 1 to 2 centimeters, and the trench shall be drained to prevent rot. Dead seedlings. 2. Temperature control This pasture is warm and moist, and the optimum temperature for growth is 15 to 25°C. When the average temperature is lower than 15°C in the second half of October, it can be covered with mulch, and adequate ventilation can be carried out day and night to accumulate nutrients. In this period, if the daytime temperature in the shed is higher than 30°C, it is necessary to open the shed for ventilation and cooling in the north. In the later period when the night temperature is lower than 4 to 5°C, the greenhouse insulation should be sealed. In case of low temperature and cold tide, we need to moisten irrigation. 3 timely top dressing 2 leaf period chase Miao Fei, mu urea 5 kg. 5 to 6 leaf period to promote strong fertilizer, mu urea 8 to 10 kg. After each castration, the quick-improvement ammonium bicarbonate 25-30 kg/mu will be applied, and depending on soil moisture combined with irrigation, the yield increase effect will be significant. The application of phosphorus and potassium fertilizer before bolting has a significant effect on production. 4. Diseases and pests prevention and control diseases mainly include sclerotinia and powdery mildew, and carbendazim spray is available. Insect pests include aphids and leaf miners, which can be controlled by deltamethrin spray. Do not use medication one week before castration. 5. Castration uses a suitable cutting period for the vegetative period and must not be later than the budding period. When it reaches about 30 centimeters in late August, it can be castrated, leaving about 5 centimeters each time. 4. Choose the best breeds such as Sichuan White Goose, Yangzhou Goose, and Lion-headed Goose with fast growth, short feeding period, and rough feeding, and buy the first batch of goose at the rate of 80-100/mu in mid-August. Seedlings, fed with fine material, can be fed pasture 15 days later. Afterwards, the amount of grass grows in parallel with the amount of food. In early November, geese can be sold. The second batch of goose seedlings was purchased at 40 to 50/mu in mid-October, and the amount of grass was small at the beginning of November. When the first batch of geese were sold, the amount of herbivores began to increase, and the grass production decreased after New Year's Day. Goose, sold before the Spring Festival. Pre-sale can be directly grazing, after-sale field amount of grass can be used for the next mandarin green manure.
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