(a) Feeding artificial seedlings
The optimum salinity for rearing artificial seedlings is 32‰-35‰, the temperature is 19～24°C, the dissolved oxygen is not less than 0.0005%, and the stocking density is 50-250 tails/liter, and the slightly larger breeding water.......
The traditional method for bees feeding the overwintering feed is: After the late autumn season, the queen bee naturally stops spawning and rushes into the sugar feed and feeds it for 2 to 3 days. The purpose is to force the queen to nowhere to spawn. This way, the overwintering feed has many .......
Release date: 2010-10-26
Papenburg of Laval University in Canada reported that patients with H1N1 flu (A stream) may have a 45% chance of i.......
Release date: 2010-10-26
Papenburg of Laval University in Canada reported that patients with H1N1 flu (A stream) may have a 45% chance of i.......
Right now, many of the first fruits of Qiuqiu tomatoes are about to enter the coloring period. How to take effective measures to help the tomato fruit color evenly become the most concern for vegetable farmers. In this issue, we will focus on the details. The reporter will give you a detailed .......
Release date: 2010-10-29
According to Sciencedaily, on October 21st, a patient at the University of Washington Medical Center became the wo.......
In the winter, when vegetables are changed, time is rushed, and vegetable farmers often pay insufficient attention to some matters, resulting in poor growth of vegetables after planting. So, what problems should be paid attention to when changing vegetables in winter? The author believes that .......