The country is a unique species commonly used in courtyards, with thick leaves, shades of shades, shades of trees, used as walk trees in northern china, and of certain economic and medicinal value. The conservation measures for the cultivation of the country's acreage are described below。
Management of water fertilizers grown in the country's tungsten
In late autumn, the country's herds should be filled with thawing water in early march, again in late march and again in april and may, thus effectively supplying the water needed to grow the long branches of the plant。
In late autumn, the country's herbs, which are generally grown with the application of base fertilization, are not subject to fertilization in early spring and can be followed up with urea in small quantities at the end of spring. If the plant is not strong, it can be sprayed with 0. 5 per cent urea solution at the end of the spring, which can effectively increase the strength of the plant。
The trees are trimmed, the trees planted in the autumn are generally trimmed, but in the early spring, some of the country's herds should be trimmed, and the areas not covered in the autumn are fixed. Obsolete branches should be removed, and dried branches should be cut short in order to facilitate the emergence of new seeds。
Pest and pest control in the country's forests
In the spring, which was a high-prevalence period for national pests and diseases, it was necessary to strengthen the prevention of pests and diseases in the spring, as the country's trees planted in the autumn were weak, less resistant, with more wounds and more vulnerable to pests。
The first is to strengthen the surveillance of worms and to follow closely the occurrence of pests. Some pests and pests can be proactively and actively prevented, such as the spraying of a plant with thiomers, which not only kills shellworms and pheasant mites, but also effectively prevents white powder, rusty, rotting, ulcers, fluids, etc。
