Throwing rice in paddy fields
Hu Zhenming, 0218 Box Farm, Handan Town, Taihe County, Jiangxi Province Postcode: 343705
There are many methods of artificial rearing of Astragalus membranaceus. However, it is possible to obtain better comprehensive economic benefits from throwing rice in paddy fields. The cultivation method is as follows:
First, the rice field finishing: choose ample water sources, no pollution, convenient drainage, organic matter, more clay rice field stocking, the area can be large or small. A small ditch 80 cm wide and 25 to 40 cm deep was opened along the fields. Cover the inside of the ridge with a thick mulch and paste it with a 5 cm thick mud (to prevent aging), or use a 50 cm high cement tile to join and enclose it, and insert the hard soil part below the floor perpendicular to the ground. Tian Lu should be more than 40 cm above the surface of the water to prevent the yellow cricket to escape or jump out of the paddy field. Two water pipes are installed at both ends of the paddy field, and plugged with plugs for feeding and draining. When entering or draining, the water pipe is covered with gauze. After finishing the field, apply 12 kg of compound fertilizer per 667 m 2 (1 mu). If possible, apply more farmyard manure to the rice base fertilizer. After coarse and fine ploughing, the fields are required to be flat, with a difference of no more than 3.3 cm.
Second, throwing crickets to release crickets: After the flat ground, the temperature can stabilize after passing 15°C, throwing about 20,000 per 667m2. After 4 to 5 days, when the seedlings return to green, they can be placed in the seedlings. The species can be captured on their own, or they can be purchased from the market. Specifications: 30 to 50 per kilogram. The size is too small and the survival rate is low. Stocking density: 10 to 15 stocks per square meter. Before stocking, soaking for 3 to 5 minutes with a concentration of 3% to 4% saline, disinfection and elimination of parasites on the carcass.
Third, feeding and management:
(1) feeding. The feed is mainly chopped animal viscera, oyster meat, fly maggots, cockroaches, and small oysters. It is also possible to put in some plant foods such as bran. Mainly cast in the ditch. The amount of bait accounts for 3% to 5% of the body weight of Astragalus membranaceus and increases proportionately with weight. Samples are weighed once every 10 days. One day is divided into 2 to 3 feedings. The next day, remove the remaining food so as not to spoil the water. Should reduce the amount of bait during the sun and field. After September, you can slowly reduce feeding until it stops.
(2) Prevention and treatment of rickets. Due to the low density of paddy fields, Astragalus has a strong resistance to diseases, and if it is managed properly, it will hardly get sick. Found that the dead fish removed in a timely manner; found that bacterial disease can be used to disinfect the bleach liquid 110-6; found that 90% of parasitic insects can be used to kill the parasitic trichlorfon 0.4 ~ 0.510-6.
Fourth, field management:
(1) Depth of water. It depends mainly on the growth of rice and taking into account the living habits of Huanghua. During the returning green period, the water depth during the delivery period is maintained at 6 to 10 cm. The field is dried at the end of the tillering period and then maintained at 6 to 10 cm. Slightly lighten the field before booting. Wax maturity, irrigation and open field alternately, the ditch always maintain a water depth of 15 cm or more.
(2) Two nights of planting. After the early rice harvest, deep water and light tillage are injected in time. From the time of throwing lice to the end of childbirth, the water depth should be maintained at 8 to 10 cm. You can plant some leeches in the ditch to allow the shad to inhabit shading, and you can also keep the water flowing to lower the water temperature. Weeds are rarely cultivated in paddy fields, and chemical herbicides are not necessary.
(3) Pest control. Since Astragalus can ingest small insects, there are few rice diseases and insect pests, and a small amount of leaf loquat powder can also be sprayed to prevent rice moths.
Fifth, winter protection: After the ripening of late rice, put the water to dry, and after the yellow scorpion has sneaked into the mud, put the rice straw on it, so that the scorpion won't freeze. In addition, rodent control measures must be taken.
On the New Year's Day and the Spring Festival, natural yellow earthworms hibernate to hibernate, and they are not easy to capture. The market price is the highest, and they can be turned over to capture and sell in time.
There are many methods of artificial rearing of Astragalus membranaceus. However, it is possible to obtain better comprehensive economic benefits from throwing rice in paddy fields. The cultivation method is as follows:
First, the rice field finishing: choose ample water sources, no pollution, convenient drainage, organic matter, more clay rice field stocking, the area can be large or small. A small ditch 80 cm wide and 25 to 40 cm deep was opened along the fields. Cover the inside of the ridge with a thick mulch and paste it with a 5 cm thick mud (to prevent aging), or use a 50 cm high cement tile to join and enclose it, and insert the hard soil part below the floor perpendicular to the ground. Tian Lu should be more than 40 cm above the surface of the water to prevent the yellow cricket to escape or jump out of the paddy field. Two water pipes are installed at both ends of the paddy field, and plugged with plugs for feeding and draining. When entering or draining, the water pipe is covered with gauze. After finishing the field, apply 12 kg of compound fertilizer per 667 m 2 (1 mu). If possible, apply more farmyard manure to the rice base fertilizer. After coarse and fine ploughing, the fields are required to be flat, with a difference of no more than 3.3 cm.
Second, throwing crickets to release crickets: After the flat ground, the temperature can stabilize after passing 15°C, throwing about 20,000 per 667m2. After 4 to 5 days, when the seedlings return to green, they can be placed in the seedlings. The species can be captured on their own, or they can be purchased from the market. Specifications: 30 to 50 per kilogram. The size is too small and the survival rate is low. Stocking density: 10 to 15 stocks per square meter. Before stocking, soaking for 3 to 5 minutes with a concentration of 3% to 4% saline, disinfection and elimination of parasites on the carcass.
Third, feeding and management:
(1) feeding. The feed is mainly chopped animal viscera, oyster meat, fly maggots, cockroaches, and small oysters. It is also possible to put in some plant foods such as bran. Mainly cast in the ditch. The amount of bait accounts for 3% to 5% of the body weight of Astragalus membranaceus and increases proportionately with weight. Samples are weighed once every 10 days. One day is divided into 2 to 3 feedings. The next day, remove the remaining food so as not to spoil the water. Should reduce the amount of bait during the sun and field. After September, you can slowly reduce feeding until it stops.
(2) Prevention and treatment of rickets. Due to the low density of paddy fields, Astragalus has a strong resistance to diseases, and if it is managed properly, it will hardly get sick. Found that the dead fish removed in a timely manner; found that bacterial disease can be used to disinfect the bleach liquid 110-6; found that 90% of parasitic insects can be used to kill the parasitic trichlorfon 0.4 ~ 0.510-6.
Fourth, field management:
(1) Depth of water. It depends mainly on the growth of rice and taking into account the living habits of Huanghua. During the returning green period, the water depth during the delivery period is maintained at 6 to 10 cm. The field is dried at the end of the tillering period and then maintained at 6 to 10 cm. Slightly lighten the field before booting. Wax maturity, irrigation and open field alternately, the ditch always maintain a water depth of 15 cm or more.
(2) Two nights of planting. After the early rice harvest, deep water and light tillage are injected in time. From the time of throwing lice to the end of childbirth, the water depth should be maintained at 8 to 10 cm. You can plant some leeches in the ditch to allow the shad to inhabit shading, and you can also keep the water flowing to lower the water temperature. Weeds are rarely cultivated in paddy fields, and chemical herbicides are not necessary.
(3) Pest control. Since Astragalus can ingest small insects, there are few rice diseases and insect pests, and a small amount of leaf loquat powder can also be sprayed to prevent rice moths.
Fifth, winter protection: After the ripening of late rice, put the water to dry, and after the yellow scorpion has sneaked into the mud, put the rice straw on it, so that the scorpion won't freeze. In addition, rodent control measures must be taken.
On the New Year's Day and the Spring Festival, natural yellow earthworms hibernate to hibernate, and they are not easy to capture. The market price is the highest, and they can be turned over to capture and sell in time.
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