Mr. Lu from Luzhou City, Hebei Province and Mr. Zhao from Langfang City, Hebei Province, asked, “Why is it not enough to use fertilizer and fertilizer?†Corn field 15:15:15 fertilizer 25 kg per mu, right?
A: First of all, we do not advocate one-time fertilization. It is like a person eating three meals a day and eating a meal. The use of nutrients will certainly not be sufficient. If the conditions are limited, one-time fertilization is not allowed. It is recommended to pay attention to three points: First, use high-nitrogen compound fertilizers, because most of the crop's lifetime demand for nitrogen (N) is roughly twice that of phosphorus (P2O5). , Even more; Second, it is appropriate to increase the amount of fertilizer. If compound fertilizer is used, one acre should not be less than 30-40 kilograms; the third is no matter if it is not applied. After jointing, especially during the big bell season of corn, look into the ground. If there is any phenomenon of defertilization, apply 5 to 10 kg of urea per acre in time. Per acre topdressing 15:15:15 compound fertilizer 25 kg is not ideal, first, the proportion of nitrogen in the nutrient is low, the second is the amount of less, there may be late de-fertilizer. (This issue of experts: Senior Advisor of Sinofert and Professor Wang Xingren of China Agricultural University)
A simple device for walking, usually a wooden or metal stick.
The cane is an important medical rehabilitation aid. It is divided into canes, elbow sticks, and canes. The canes are mainly used for mild needs, such as elderly people or climbers. The canes are not disabled items. The elbow sticks are moderately disabled items.
Walking Aids,Walking Aids For Disabled,Durable Walking Aids,Walking Training Aids Walking
Ningbo Cland Medical Instruments Co., Ltd. , https://www.cland-med.com