Interplanting Pleurotus ostreatus in rice field

During the growth and development of rice, interplanting Pleurotus ostreatus under special conditions of rice row space and rice cluster shadow can not only provide suitable temperature and humidity conditions for the growth and development of Pleurotus ostreatus (large temperature difference between day and night, good shading, sufficient scattered light, etc.), so that Pleurotus ostreatus can obtain high yield, but also fill the market off-season with few mushrooms in summer, enrich summer vegetable varieties and increase rice farmers 'income.

1. Stubble arrangement and field design: rice varieties with strong lodging resistance, plant height, stem diameter and resistance to rice planthopper should be selected. The sowing period is in late May and transplanting in late June. The density is as long as 24×45 cm polypropylene plastic bags can be placed between two rice plants, and a walkway of more than 30 cm is reserved at intervals for inspection and mushroom picking. Before placing the fungus bags, the fields should be dug with ditches and ditches to facilitate drainage and irrigation.

2. Selection of Pleurotus ostreatus varieties: The original seed production of Pleurotus ostreatus is generally in late June, the cultivation seed production is in late July, and the cultivation bag production is in late August. High temperature strains, such as 831, Sanxia 13, HP-1 and Pteris lasifolia, and wide temperature strains, such as Sanxia 1, should be selected.

3. Bag-making and bacteria development: 1. Formulation of culture medium. Formula 1: cotton shell 89%, corn flour 3%, gypsum powder 2%, imported compound fertilizer 1%, lime powder 5%(mixed with water). Formula 2: straw 79%, wheat bran 10%, corn flour 3%, compound fertilizer 1%, gypsum powder 2%, lime 5%(mixed with water). In both formulations, 0.2% carbendazim was added to give a moisture content of 62-65%. 1-1.2 kg of dry material per bag.

2. Stacking fermentation. selecting fresh mildew-free cotton hulls or golden rice straws to be exposed to sunlight for 2 days to kill miscellaneous bacteria and insect pests, uniformly mixing the raw materials in the formula, and mixing the raw materials with lime water at a ratio of 1: 1.6. Then make a pile of 1.5 meters wide, 1.2 meters high and unlimited length. Cover with thin film around and straw on top. In case of rain, cover with thin film to prevent rainwater from flowing into the material. 2-3 The queen turns the pile once, so that the material changes position up, down, inside and outside. After 2-3 days, it still needs to be covered.

3. Bag inoculation. Before bagging, spray 1∶1000 times dichlorvos and 1∶100 times cresol soap solution evenly around the material pile to further kill pests, remove ammonia smell and disinfect the site environment. When bagging, the material should be packed tightly, and the distance between the two ends of the bag can be kept 5 cm. Then, a hole is made in the center of the material with a 2-2.5 cm diameter stick, penetrating both ends, filling the hole with strains, sowing a layer of strains on each of the two material surfaces, covering the collar, covering two layers of kraft paper, fastening with ropes, and placing in a cool room for bacteria. During the growth period, check the temperature change of the material and the growth of hyphae frequently, detect the miscellaneous bacteria in time, pay attention to ventilation and turn over the bag, and the hyphae can be fully grown in about 20 days.

4. Management after the fungus bags are put into the field: after the hyphae grow well, at this time, the rice sealing and heading are completed, and the conditions for shading and heat preservation are met, and the fungus bags that have grown well are moved into the rice field to enter the fruiting stage management. Before the bacteria bags are moved into the rice fields, firstly, the surrounding ditches and compartment ditches should be opened well and the accumulated water should be drained (wet management should be carried out later); secondly, the rice planthoppers should be treated again; thirdly, the rings of the bacteria bags should be removed, and the bag mouth should be pulled to the level of the material; fourthly, after the bacteria bags are placed well, irrigation with large water once, the submerged bacteria bags should not exceed 1/3, and the water should be drained within 3-5 hours, and then the primordium should be promoted to form. Water management in the later stage mainly takes frequent irrigation and frequent discharge as the principle. The first tide mushroom can be harvested after one week by adopting the management method of alternating dry and wet. After harvesting the first tide mushroom, irrigation again, after 24 hours of drainage, then enter the management of the second tide mushroom, about 10 days can harvest the second tide mushroom. In this way, 3-4 tide mushrooms can be collected until rice harvest. If the mushroom bag can still produce mushrooms, it can be moved to other places to bury the soil and then produce mushrooms or used for cultivating coprinus comatus.

Each mu of paddy field can generally discharge 4000 bags, and each mu can produce more than 6000 kilograms of fresh mushroom. (Yang Dalin)