-
Control Methods and Technical Key Points for Sweet Potato Brown Spot Disease
Sweet potato brown spot disease, also known as angular leaf spot. [Pathogen scientific name] Cercospora batatac Zimm [Host crops] Sweet potato, water spinach, morning glory, etc. [Disease diagnosis] It mainly damages leaves. When leaves are affected, water-soaked small spots first appear, then the lesions gradually expand
-
Prevention Methods for Sweet Potato Cellar Rot and Storage Management Techniques
The biggest problem during sweet potato storage is cellar rot. Once cellar rot occurs, it may at best reduce the quality of the sweet potatoes, and at worst cause all the sweet potatoes in the cellar to rot, resulting in varying degrees of loss. Sweet potato cellar rot is mostly caused by physiological diseases and infectious diseases. Physiological diseases mainly
-
What methods are there to suppress excessive vine growth in sweet potato vines and leaves?
Sweet potato is also called sweet potato, because it grows in the ground, hence the name sweet potato. Sweet potato is fairly common in our lives, and we also eat it often. Especially the roasted sweet potato stalls often seen by the roadside, whose fragrance can be smelled from far away
-
The correct method for soaking and germinating hybrid rice seeds
Now is precisely the main spring production season. A small number of farmers, due to improper operation during the soaking and germination process, have encountered problems such as seeds turning sour and smelly and poor sprouting. Therefore, when soaking and germinating seeds, attention should be paid to: 1. Sun-drying the seeds: one week before soaking, choose a sunny day and sun-dry the seeds for 3-4 hours
-
Occurrence and Control Methods of Rice Pests and Diseases at the Mid-Season
According to field surveys of pests and diseases by each forecasting station, the field moth population of the third generation of the rice leaf roller is currently large, and the egg mass is high. All towns are urged to actively carry out control work. I. Occurrence situation: (1) Third generation of the rice leaf roller: 1. Field moth population: According to observations at each forecasting station, the field moth population
-
How to prevent and control rice purple sheath disease? Practical methods and key technical points
Symptoms After rice heading, dense pinhead-sized purple dots appear on the leaf sheath of the flag leaf, then gradually spread to most of the leaf sheath or the entire leaf sheath turns purplish-brown, especially obvious on the outer wall of the leaf sheath, sometimes infecting the inner wall or reaching deep into the stem. In severe cases, the flag leaf dies 7-10 days early.
-
Integrated Control Methods and Techniques for Rice Stem Borer Damage
Integrated control technology for stem borer damage refers to addressing the adverse conditions of residual toxicity, resistance, and resurgence caused by long-term pesticide application against rice stem borers, minimizing harm to humans and environmental pollution while earnestly implementing the plant protection policy of "prevention first, integrated control," persisting in carrying out pest and disease forecasting
-
Control Methods and Technical Key Points for Rice Bakanae Disease
Symptoms: After rice is infected with bakanae disease, the internodes of the affected plants elongate, growing thin and tall, the plant color is paler, the leaves are narrower than those of normal plants, there are varying numbers of adventitious roots inside or outside the leaf sheaths at the nodes, and white mold grows inside the rice stalks, later turning light red, sometimes
-
Peanut Seed Storage Methods and Key Technical Points
First, before storage, the seeds must be thoroughly sun-dried so that the seed moisture content drops below 8%. According to experiments, when the seed moisture content is below 8%, storage is very safe, and even at -25°C, germination capacity is not affected. When the seed moisture content is above 10%, respiration increases, releasing
-
Methods and precautions for watering wheat with urine
Collecting urine in winter to water wheat is a traditional measure for increasing yields. According to measurements, human urine generally contains 0.5% nitrogen, 0.13% phosphorus, 0.19% potassium, and 3% organic matter. Therefore, after wheat is watered with urine, the content of readily available nutrients such as nitrogen, phosphorus, and potassium in the soil can be significantly increased, promoting the growth and development of wheat seedlings.
条件筛选