In recent years, Nanjing has vigorously promoted the “Rice + N†efficient planting model and explored the three cropping and revitalizing modes of greenhouses, celery, leeks and rice. Celery sowing in the middle of September, planting in mid-late November, listing before and after the Spring Festival, harvesting in early February; leeks sowed in late February, listed in early April, the end of May harvest; rice planted in mid-May Transplanting in mid-June and harvesting in late October. Per acre can produce celery 3500 ~ 4500 kilograms, leek 1000 ~ 1500 kilograms, rice 650 kilograms, the annual output value of 16,000 yuan per mu, mu net income of nearly ten thousand yuan.
Celery chooses the cold-resistant, high-quality, high-yielding local variety Liuhe Huang Xinqin. Choose the land with high topography, convenient drainage and irrigation, loose soil and sandy loam soil with organic matter. Use 1 kg per acre seedbed. Cover the seeds with trifluralin to seal the soil. Then lay a layer of shade net on the seedbed. , take a small arch shed, and covered with plastic film and a layer of shade net, after the emergence of the seedlings to peel off the shade net screen. Qi Miao after the seedlings, so that the seedlings in about 2 cm. Daejeang applied base fertilizer to make soil after basal application. The greenhouse was covered with two layers of greenhouses and small sheds. The greenhouse film was covered 10 days before transplanting. The soil was sealed with 33% pendimethalin EC at 150 ml per mu for 1 to 3 days before transplanting. deal with. Transplanting spacing 12 cm, 8 cm hole spacing, planting 3 to 4 per hole. Celery live, period of closure and growth period of each fertilization 1 times, each mus of 10 kg per urea, poured with water pouring. A 0.2% potassium dihydrogen phosphate solution was sprayed once during the vigorous growth period of the plant to promote the tenderness of the celery tissue and improve the commercial quality. During the growing season, the cold wave should be kept closed and insulated. The main diseases are spot disease and spot blight, which can be controlled by sprays such as carbendazim and dexamethasone.
The leeks were selected from early-maturing, cold-tolerant and high-yielding round-leaved red leeks, which were covered with greenhouses and two-layer mulching. After the application of basal fertilization, the soil is sown and sown, and the amount per mu is 2 to 3 kg. Before sowing, sufficient water was poured to cover the groundwater. After the seedling rate reached 80%, the plastic film was removed. In early spring, the temperature in the greenhouse is low, and the evaporation of soil moisture is small. Watering should not be excessive. After dipping and digging, dilute manure was applied for 10 days after harvesting, and then every time after harvest, thin manure was applied. The common disease is white rust, which can be controlled by metalaxyl, mold manganese and zinc sprays.
For rice, early-maturing late japonica rice varieties such as Yangzi 4038 and Ningjing 3 were used to cultivate strong clams by using dry beds, sowing and thinning seedlings. The amount of seeds used per acre seedbed was 35-40 kg. When the seedling age is about 30 days, it is planted with a spacing of 26.4 centimeters and a hole spacing of 11.5 to 13.2 centimeters. It is planted with 16,000 to 20,000 holes per acre and 2 to 3 seedlings per acre to guarantee basic seedlings per acre of 70,000 to 80,000.
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