Ammonia poisoning is prone to occur in vegetables in greenhouses in winter and spring, mainly due to the continuous high temperatures in the weather. It should cause farmers to pay attention to it and find that it is timely to take remedial measures after ammonia poisoning. China Agricultural Technology Network now introduces you as follows. Ammonia poisoning Symptoms: Lightly poisoned vegetables showed irregular patchy patches on the leaves, and the leaves were burned. The roots of heavy plants are dark brown and lose their functions of absorbing water and fertilizer. The above-ground parts gradually wither and die. As a result, the growth and development of vegetables is not normal, resulting in serious economic losses in cultivation of greenhouse vegetables. Prevention and rescue measures: 1. Use pH test paper to discharge ammonia gas. Determine the pH concentration of the water droplets in the shed. When the pH is above 8.2, vent the air in time. 2, in addition to venting the exhaust, the first is rapid irrigation, reducing the concentration of soil fertilizer solution; the second is the external spraying of Huimanfeng and other active liquid fertilizer to balance the pH of the plant body and the soil; the third is to spray 1% vinegar on the back of the plant leaves. Can reduce or mitigate the hazards. 3, fertilization method Shelf vegetables vegetable base fertilizer or top dressing, should pay attention to the following points: First, the application of organic fertilizer as a base fertilizer, must be fully cooked; Second, chemical fertilizers and organic fertilizer can only be deep, can not be spread on the ground; Fertilizer can not be excessive, especially the fertilizer should be a small amount of multiple applications; four is suitable for fertilizer, or irrigation after application, so that fertilizer can be released in time release. Therefore, in the winter and spring seasons, we must pay attention to the weather conditions, timely venting and deflation, the most important thing is that the fertilization method should be correct, and a small amount of fertilization should be used so that the fertilizer can be decomposed in time and ammonia poisoning of vegetables will not be caused. Substitute tea refers to the use of edible plant leaves, flowers, fruits (fruit), roots, etc., using the way of drinking tea (by brewing, boiling, etc.) is a kind of products commonly known. Alternative Tea,Hot Drink Alternative To Tea,Tea Substitute,Green Tea Alternative XuChang Youjia Food Product Development Co., LTD , https://www.yjgrain.com
Substitute tea is divided into leaf, flower, fruit and rhizome; The way of drinking the same as tea is generally composed of one or more items in the two categories of "medicine and food homology" and "can be used for health care" in the food classification stipulated by the Ministry of Health. Tea products made from the roots, stems, leaves or fruits of these plants.
The way of drinking the same as tea, generally by the ministry of Health provisions of food classification of medicine and food homologous category, can be used for health care category, two types of goods in the single or multiple items, with the roots, stems, leaves or fruits of these plants made of tea products.
Substitute tea has certain effect and auxiliary effect for some special groups, belonging to the health conditioning products.