Ornamental sunflower is an annual herb of the genus Asteraceae, native to North America. Because the disc inflorescence can be turned with the rotation of the sun, the name sunflower, also known as the sun, sunflower and sunflower. Ornamental sunflowers are full of plants and flowers. The flowers ....

Scientific name: Chrysalidocarpuslutesens Family is: Palmaceae, Drosophila Alias: Yellow Coconut Native to Madagascar, Africa. (I) Morphological characteristics: Evergreen shrubs or small trees. Plant height 3 to 8 meters, clustered, more part of the base. Smooth stems, yellow-green, leaf mark ....

As the pet rabbit market is booming, more and more pet rabbits are introduced. However, various problems have arisen. Some people spend a lot of money on the purchase of so-called pet rabbits and rabbits. The result is that they have no estrus during the breeding period. After careful inquiry, the ....

After the overloaded new piston ring is loaded into the cylinder, the piston ring is inflated by the impact and causes breakage without overloading the load, especially the impact load of the vehicle. The impact fracture creates a step due to the wear of the top of the cylinder, and the piston rin ....

First, Paulownia anthrax (a) symptoms. Paulownia anthracnose mainly damages paulownia leaves, petioles and young shoots. When the Paulownia seedling grows 1 to 2 pairs of true leaves, the onset of disease occurs. In the early stages of leaf damage, the lesions are punctate green, then expanded to ....

Seedling stage 25-30 days after emergence, combined with 15 acres of urea watering acres, and pay attention to cultivator weeding, root soil. From the bud, 0.2%-0.3% urea and potassium dihydrogen phosphate solution were mixed with 0.01%-0.03% ammonium molybdate solution, and the plants were spraye ....

Rice rotting is a general term for rotten seed, rotten buds and dead seedlings in rice seedling stage. According to the weather forecast, the fact that there is a lot of rain this spring is conducive to the occurrence of early rice rot. If the prevention and control are not strengthened, the early ....