Summer flower seedling cutting propagation technology

In the past few years, the flower industry has developed rapidly, and the demand for flowers and seedlings has continued to increase. However, seedling seedlings alone cannot meet the needs of the flower market. Therefore, the cutting and seedling raising techniques have become more and more popul.....

Hybrid corn storage

First, disinfection before storage After threshing, the hybrid corn seeds should be clean and windy, prevent the hybrid corn from mildew during storage, and use 50% pungent sulfuric acid or 80% dichlorvos 1500 times to spray the inside and outside of the empty warehouse and surrounding environmen.....

Middle and late management points of corn

Timely fertilization of corn from jointing to booting is the period with the most need for fertilizer, especially the big bell-mouth period is the key period for determining the size of the ear and the number of grains. This period should be re-application of nitrogen fertilizer, urea can be appli.....

Application of ultrasound in carotid endarterectomy

Release date: 2007-08-13 Application of ultrasound in carotid endarterectomy is one of the main causes of disability and death in middle-aged and elderly people, 75% of which is due to ischemic cerebrovascular disease. Carotid stenosis and emboli detachment are the main causes of ischemic strok.....

The correct installation and use of agricultural film

Agricultural plastic film is one of the main covering materials of plastic solar greenhouses. In order to ensure its light transmittance, heat preservation and drip resistance, attention should be paid to the following points when installing and using. 1. The plastic film must be stored in a shade.....