Rational use of space to build a rearing pond In order to use limited space, the flat pool should be improved to a three-dimensional pool. The middle is 60cm wide as the sidewalk, on both sides with brick, cement board structure pool, each floor height 40-45cm, pool depth 20-25cm, edge paste glass strips (smooth anti-escape) each 8 layers, each room can be farmed The area has increased from less than 20 square meters to 120 square meters. According to habits, the formulated soil and soil elements like to live under soft and moist soil. The best preparation materials are odorless poplar, willow, and paulownia. The humus is more in the vegetable field (or old wall soil). 28% of the fertile soil, 2% of ash or cow dung. The No. 4 sieve was mixed and sprayed with water for 10 days after being used for accumulation and fermentation. The longer the time, the better. When the water is sprayed with 0.2% of salt water, the humidity is grasped by hand and the powder is dropped into a pool and the thickness is 15 cm. Grasping stocking density at different ages, we must grasp the appropriate density, such as stocking density is too large, uneven growth and development, too small and easy to cause soil compaction. The optimum density is 200,000 larvae per square meter for larvae, 120,000 per square metre for green peas, 2.5 to 30,000 pods per square metre for large beans, 10,000 adults per square metre, and up to 0.4 million spawns. Only/square meters. Feeding nutrients should be fully soil yuan for omnivorous insects, feeding characteristics are like eating fresh foods, most like to eat bran, rice bran, followed by cornmeal, broken grains, peanut cakes, soybean meal, miscellaneous fish, meat and all kinds of grass Leaves, melon peel, chicken, cow dung and Other coarse materials. If the feed is fed with grass and other feeds, the growth rate is slow. The full price can be 72% wheat bran, cornmeal 20%, bean cake 5%, animal feed 3% (cooked). When you feed, you must use hot water, plus 30%-40% vegetables or fruits. Feeding on full-priced feed for 5 to 6 months, individuals can grow into adults. The timely feeding of soil element is a nocturnal insect that starts to move after 2 hours every evening. The feeding is done every evening at the end of the day. The concentrated material is eaten on the same day, the green material is left over, and the next day is cleared. Clean up once in 3 days. Don't pour the remaining material into the tank to prevent worms from being produced. The temperature and humidity of soil elements in different ages are not very different. The nymph period is slightly better, but it must not be less than 40%. The adult period is slightly wet, but not higher than 90%. Temperature is an important condition for the growth of soil elements. It will freeze at 2°C to 10°C, and it will start to die at temperatures above 45°C. It can spray water on the surface during heatstroke prevention or humidification, but it should not be too wet. When the humidity is high, attention should be paid to ventilation. In winter, the thickness of the soil should be appropriately increased, and a stove in the middle of the breeding room should be used. However, the smoke must be discharged to the outside. The temperature in a single room can be up to about 30°C, and the soil can grow normally. The yield is the same as in summer. If the temperature is suitable and the feed is adequate, the soil element will grow into individual parts in 5 and a half months and should be promptly screened and dried.
Tasty Black Tea,Chinese Black Tea,Tasty Chinese Black Tea,Black Tea
Prettyfly Technology Co., Ltd. , http://www.prettyflytea.com