Fertilization method for protected vegetable fertilization

There are two kinds of fertilization methods for the fertilization of vegetable in the protected area: sublime ditch and fertilization. Linyi Fertilizer Network Copyright The submucous sulcus fertilization method is a method of topdressing fertilization used for cultivating vegetables in ridges. ......

Potato topdressing precautions

Most of the potato topdressing is nitrogen fertilizer, and its amount varies depending on soil fertility, fore crops, irrigation, density, and phosphate application level. When dry farming is carried out without organic fertilizer, the effect of nitrogen fertilizer on topdressing is poor, and it is ......

Several drawing skills of Zhongwang CAD

1. How to replace the original font that can't be found? Copy the font to be replaced to the name of the font to be replaced, such as: open a picture, suggest that the font jd is not found, you want to replace it with hztxt.shx, then you can go to the middle looking CAD font folder (Fonts) Cop ......