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.....
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.....
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.....
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.....
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.....
In recent years, due to the good production efficiency of sweet pepper planting, vegetable growers in Shouguang City and its surrounding regions have a higher enthusiasm for planting. However, with the repeated planting of successive years, the death of the sweet pepper has become more and more ser.....
Yesterday, it was learned from the Zhongxin Pharmaceutical Group of this city that the Shuxinxin Pills of Tianjin No. 6 Chinese Medicine Factory, which was listed as a major scientific and technological project in this city, finally emerged after 20 years of developmen.....