"Leaf-fruit ratio" is a professional term in fruit tree cultivation, referring to the ratio of the total number of leaves on the fruit tree to the total number of fruits. Whether the ratio of leaf to fruit is reasonable or not has a great influence on fruit tree yield. By the same token,
Different types of human cells Human primary cells are cells taken from living human beings and cultured. These cells retain the differentiation of the original cells taken in a biopsy sample and can be used in a wide variety of types of research. Many laboratories that sell cell cultures provide h
Tenebrio also called breadworms, is a Coleoptera, intended to walk insects. Tenebrio is non-toxic and does not harm humans and animals. Formerly a warehouse pest of grain and medicinal materials warehouses, originating in the cold temperature zone of North America, was introduced into China in the
From a philosophical point of view, there is an important relationship between the whole and the parts, some of which form an integral whole, and some of the advantages and disadvantages are related to the overall good or bad. For agricultural machinery, whether the agricultural machinery parts are
For piglets, the practice of "two-stage, two-early, two-material" cultivation can greatly increase their survival rate and weaning weight. Practice has shown that using this breeding technique, piglets can reach a weight of 80kg or more on 45-day-old piglet, a litter weight of 165-190kg
Mushrooms are generally limited to spring and autumn season. In winter and summer, the market is particularly short supply of fresh mushrooms. In order to meet the annual supply of mushrooms market, improve the mushrooming environment, and improve the quality of yield, I stand to conduct cultivatio
1. Stocking quality fish species: High-quality fish species have a fast growth rate, and have a high rate of digestion and absorption of feed. In production, we must pay attention to the selection of excellent and healthy fish. In addition, in the stocking mode, it is necessary to highlight the ma
The drought in the previous period caused the growth of cotton seedlings to be hindered and the birth process delayed. Recently, the southern cotton region has ushered in rainfall, and the fertilizer and water conditions in the cotton fields have greatly improved. The currently well-managed cotton
Phosphate rock, bone powder and other insoluble phosphate fertilizer can not be mixed with alkaline fertilizer such as grass ash, lime ammonia, lime. Otherwise it will neutralize the organic acids in the soil, making it harder to dissolve insoluble phosphate fertilizers, and crops cannot absorb an
After the damage, dark brown or dark brown dots appeared on the back of the victim; some had near-circular lesions on the surface of the leaves, and there was one small tick in the center, and the leaves were dead when severe. Control methods: 1 After the flower was collected, the dry plants and