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What are the control methods for corn sheath blight?
According to reports, in the southern corn planting areas, the incidence rate in normal years is about 40%, reaching 70% in severe cases, and up to 100% in individual plots or varieties; the incidence rate is even higher in seed production fields, with the plant incidence rate in normal years above 50%, and there is a trend of worsening year by year. In Yunnan
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What are the control methods for corn smut?
In recent years, corn smut has become fairly common, and when the ear is affected it loses its value for food and feed, so control work should be done early. Throughout the entire growth period of corn, all young aboveground parts can be affected by corn smut. The diseased part is tumor-like, and the size of the tumor varies depending on
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How to prevent and control peanut leaf spot? These methods are very practical
1. Symptoms Peanut leaf spot disease mainly consists of black spot and brown spot, and both diseases mainly harm the leaves. When peanuts are affected, symptoms first appear on the lower leaves, then gradually spread to the upper leaves. In the early stage of the disease, small brown spots appear, which gradually develop into round
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How to Grow Peanut Sprouts in Substrate Cultivation? A Detailed Guide to the Method
1. Production Site, Equipment and Substrate Materials. Production can be carried out in open fields or greenhouses where the temperature is maintained at 12°C to 30°C and the soil pH is 5.5 to 7.5. Any water-leaking container can be used, and the substrate can be soil, sand, sawdust, etc. 2. Seed Selection. For producing peanut sprouts, choose
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What are the control methods for peanut root rot?
In recent days, many farmers have brought peanut leaves to the shop to ask what is going on. On the surface, the leaves are yellowing, and some farmers think it is a lack of nutrients, but in fact it is mainly caused by root rot. A while ago, rain was frequent, making the soil damp,
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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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What are the control methods for rice stem borers?
Netizen Yeshan Judicial Office sent an email on July 4: I am a staff member of the town agricultural technology station. Right now we have too many rice stem borers here, and they are hard to control! I had farmers use Dakuangsha and dimethoate, but the feedback was that the control effect on stem borers was poor. May I ask what methods should be used to control them
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What Are the Methods for Determining Herbicide Damage in Rice
Currently, most people mix pesticides when using them in order to increase their effectiveness. However, if used improperly, this can easily cause herbicide damage. How to determine whether it is herbicide damage through investigation and analysis? The following methods are introduced: 1. From
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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
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Try These New Methods for Growing Sweet Potato Slips
The traditional technique for growing sweet potato slips is to store sweet potatoes harvested in autumn, plant and cultivate them in spring to grow vines, then cut the vines into sections and root them to produce sweet potato slips. This method is labor-intensive, time-consuming and uses up seed potatoes, and the winter storage technique is hard to master, which affects the following year's
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