The disease is the main disease of grapefruit, mainly damage the spring shoots, late autumn shoots, winter shoots of young leaves, flowers and young fruit. When the disease is severe, it causes a large number of fallen leaves, fallen flowers, and fruit drop. The damaged fruit is deformed, the .......

The first is to improve the comprehensive benefits of agriculture and significantly increase the income of farmers. The technology has been introduced into Daejeon production demonstration for three years, and has been widely used in 7,000 greenhouses and 1,000 acres of orchards. Practice show.......

The quality of gestation sow feeding and management is directly related to the growth and development of the embryo, the number of litter size, the birth weight, the survival rate of the piglet, the daily gain, the milking force, and the estrus breeding of the next cycle. Therefore, the follow.......