ST310 Soxhlet extraction unit using brief steps control unit The SET button is used in two places in the control unit. One is the over-temperature protection section for the control unit for setting the correct temperature. This key is only valid when LOCK is on. The other is a program contro
Read MoreBuild room with soil and choose irrigation conditions, fertile soil, leeward sunny, non-green onions, leeks and other hot and spicy construction of greenhouses. Cultivation beds are mainly framed beds and general seedbeds. Either way, you should first spread 3 to 4 cm thick garden soil on the bed
Read MoreThe compound feed is formulated according to the nutritional needs of livestock and poultry and can fully satisfy the feed needed for the growth and development of livestock and poultry and production. In the purchase and use should pay attention to the following points: Can not simply identify t
Read MoreThe volume should be appropriate Excessively large feed composition will cause too much burden on the digestive tract of livestock and poultry, which will affect the digestion and absorption of feed. When the volume is too small, even if the nutrients meet the needs of livestock and poultry, the
Read MoreSince May of this year, a new swine disease syndrome characterized by a variety of pathogenic infections and secondary infections with fever, skin redness, and respiratory symptoms has emerged in parts of southern China in the high temperature and high humidity season. Since August this year, the
Read MoreSilage processing technology It belongs to biological treatment technology and is the main mode of utilization of corn straw feed in Shandong Province. The technology is to cut the corn straw through a silage harvesting machine to complete the shredding, collecting or artificial harvesting at one
Read MoreChanging or using small techniques in vegetable greenhouses can improve the growth conditions of vegetables in sheds and increase their yield and quality. 1. Garden soil disinfection. Each square meter of garden soil is treated with 3 to 5 grams of carbendazim or methyl bromide, which can kill pa
Read MoreIf the concentration is too high, it is not only useless but harmful. In general, the suitable spraying concentration of various fertilizers is: boric acid or borax solution 0.05%-0.25%, ammonium molybdate solution 0.02%-0.05%, zinc sulfate solution 0.05%-0.2%, copper sulfate solution 0.01%- 0.02%
Read MoreMany farms now have penicillin, and as long as livestock and poultry are deprived of food, penicillin is indiscriminately injected indiscriminately. In fact, penicillin is only effective against gram-positive bacteria and a few gram-negative bacteria, has a strong effect on bacteria during vigorou
Read MoreOvereating Lamb overfeeding disease, type D enterotoxemia, is more common in lambs fed more than one month of age and fed concentrates. When the feed is changed quickly, or when feeding the concentrate feed, the lambs have a fast onset and often die without symptoms. When symptomatic, the disease
Read MoreWenzhou Fengquan Valve provides The diaphragm valve is a special form of shut-off valve whose opening and closing member is a diaphragm made of a soft material that separates the valve body cavity from the bonnet cavity. The diaphragm valve is actually just a “ clam
Read MoreFirst, we must pay attention to the method of adding nutrient solution is usually added in three ways: spray, soaking, and cavitation. It is advisable to spray the nutrient solution in large amounts in the fruit body. Spraying should pay attention to the nozzle is not facing the fruiting body, whi
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