First, the symptoms of celery leaf blotch, also known as leaf blight. Celery leaves, petioles, stems can be infected. The old leaves first became infected, and they spread to new leaves. The lesions on leaves were scattered and varied in size ranging from 3 to 10 mm in diameter. They were initially
A new corn processing technology can replace the use of more than one hundred years of processing methods. In this new method, yeast and not sulphur dioxide are used to break down starch and proteins in the so-called soaking stage of wet milling. This new process can reduce the production costs o
The regular flowering period of the golden chrysanthemum is early spring. If it is allowed to have flowers in other seasons, technical measures must be taken separately. 1 autumn flowering. After the flowering in early spring, the residual flowers are cut off in time, and the management of fertiliz
In the cultivation of edible fungi, a reasonable supplement of various nutrients is an effective measure to increase the yield of edible fungi. However, improper supplementation can also be counterproductive. Therefore, when adding nutrients to edible mushrooms, pay attention to the following tips:
The greenhouse whitefly is an important pest on greenhouse vegetables. It uses adults and nymphs to suck sap from the back of leaves. The damaged leaves chlorosis, yellowing, wilting, and even the whole plant withered and secretes a lot of honeydew, which easily induces coal pollution. Contaminate
(1) Test materials: The oligochitosan citrate calli “Magic Formula 1†produced by Dalian Baoluobao Marine Life Sciences Research and Development Center Co., Ltd., and the seaweed extract plant immunopotentiation opsonization carboxymethyl chitosan The protective agent and other auxiliar
First, the reservoir has the basic conditions for fish farming 1, water is abundant, the water level is relatively stable, the water season can still maintain a certain fish water surface. It is more ideal to have water supplements. 2. Good water-based, rich biological resources, basically meet the
In general, meat goats bred at 12 months of age weigh less than 15 kilograms, but the growth rate is very slow. The main reason is that due to inbreeding, the constitution is degraded; the second is not paying attention to deworming, and parasites consume a lot of nutrients from the sheep; Without
Occurrence and Comprehensive Control Techniques of Main Diseases and Insect Pests of Winter Jujube 1. Occurrence and damage of main diseases and insect pests of jujube 1.1 Occurrence and damage of major pests 1 The worm is a major pest in the production of winter jujube. It is a larva that injur
A gene is a genetic unit with a certain locus on a chromosome and is a nucleotide sequence of a certain length in a DNA molecule. The growth and development of plants is a comprehensive phenomenon of gene expression in space-time based on a variety of metabolic and physiological processes. The deve
The use of aerosols (hereinafter referred to as “smoke agentsâ€) in winter and spring sheds has unique effects in preventing and treating diseases, and its control effect is significantly better than spraying, dusting, and other spraying methods, especially in the rainy days or disease e
Chrysanthemum is also known as chrysanthemum, a perennial medicinal herb of the Asteraceae family. Using flowers as medicine, it has the function of dispelling wind and cooling and clearing the liver and eyesight. It is mainly produced in Anhui, Zhejiang, Henan, Hebei and Sichuan, and is cultivated