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Strictly guard against diseases when introducing sweet potato
At present, sweet potato cultivation in our province is expanding into non-traditional growing areas. In these areas, sweet potato storage and seed preservation techniques are not up to standard, and when the storage pits are opened in spring, the tubers are severely rotten, so the supply of seed potatoes cannot be guaranteed. Some sweet potato farmers have to introduce seed from other places, which increases costs. Because farmers lack knowledge about
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Growing sweet potato vines on trellises can increase yield
Last autumn, on the day we dug up the sweet potatoes, many onlookers came over, because they wanted to see just how the yield turned out after growing sweet potatoes on trellises. As soon as several piles were dug up, the onlookers were full of praise: the trellised sweet potatoes had grown really well, large, uniform, and abundant in yield!
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How to prevent and control rice bakanae disease? Treating seeds with chemicals is effective
Last year, rice bakanae disease occurred in quite a few places in Tongzhou District, Nantong City. The occurrence characteristics, infection pathways and control techniques of this disease are introduced below. Bakanae disease can occur from the rice seedling stage to the heading stage, with the highest occurrence at the tillering stage. Seed-borne bacteria are the main source of infection
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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
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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.
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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
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What are the methods for preventing rice seedling-stage diseases?
I. Damping-off Symptoms: During the seedling stage, the young shoots sometimes become discolored, the leaves curl, and finally the plants wither and die, spreading very quickly. Control measures: The pathogen of damping-off survives in the soil, and the occurrence of damping-off is closely related to environmental conditions such as climate, seedbed temperature, soil pH, and fertilizer.
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Detailed Explanation of Cultivation Points for the Late Growth Stage of Rice
Pest and disease control: Diseases: The main disease requiring attention in the late growth stage of rice is rice blast. After rice heading, seize the opportunity to apply pesticide 2---3 times, with an interval of about 7 days. Apply about 100 grams of tricyclazole wettable powder per mu, mixed with 30 kg of water for foliar spraying.
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Detailed Explanation of Key Points for Rice Viral Disease Prevention and Control Technology
The occurrence of rice viral diseases is characterized by outbreaks, intermittency and migration. The severity of rice viral disease occurrence is closely related to the farming system, the population and migration patterns of transmission vectors, climatic conditions and cultivation management measures. Control should implement the principle of prevention first, integrated control
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High-Yield Peanut Cultivation Techniques and Disease Control Methods
I. Bacterial Wilt of Peanut This disease mostly occurs from the seedling stage to the peak pod-setting stage of peanut. Spring peanuts are affected from May to June, and summer peanuts from September to October, with a relatively severe incidence rate. In infected plants, the top leaves first become soft and droop, then the leaves of the whole plant wilt and hang down, but the wilted leaves can still remain green
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