(1) Selection of duck breeds Select varieties with good production performance, gentle temperament, small body size, early maturation, rapid growth, low consumption of material, high egg production, high feed utilization rate, strong adaptability, and strong disease resistance. The female ducks st.....

1 Strengthen post-pregnancy management. The survival rate of the puppies and the growth and development rate after weaning have a direct relationship with the basis of the growth and development of the fetus. The fetus has a good growth and development, and after birth, it must have a large body s.....

Su, alias Scorpion, Chisu, Red Su, Hong Su, Su Ma, Su Ma and so on. It is an annual herb of the Lamiaceae. It has been cultivated in China for more than 2,000 years. It is mainly used in medicine, oil, spices, foods, etc. It is a traditional Chinese medicine and food dual-purpose plant, and is als.....

Paddy rice blast is the main disease of paddy rice, and the conditions are very easy to outbreak and epidemic. The panicle blast has great influence on rice yield. The severely affected land can cause field production, and the panicle blast can only be prevented. Once it occurs, Prevention is late.....

Professor Zhai Honghai from Qingdao Agricultural University and his research group have gone through three years of research and continuous experiments and successfully tackled a new leaf spot disease that has been plagued by planting for many years and was called the "peanut killer." Ni.....

With many varieties of vegetables, short growth cycle, high multiple cropping index, and scientific arrangement of vegetable garden gargles, it can restore and improve soil fertility, reduce pests and diseases, increase yield, and improve quality. It is an extremely important and extremely effecti.....

First, the cause of cold and freezing injury 1, low temperature and low temperature duration. The lower the temperature drop, the longer the low temperature time, the colder and colder the cucumber, the heavier, and the lighter. 2, abrupt cooling and weather conditions after the victim. If the t.....