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How to prevent and control wheat rosette dwarf disease? Growers should take preventive measures in advance
Symptoms and characteristics of rosette dwarf disease: infected plants have yellow-green alternating stripes on the upper leaves, increased tillering, stunted and dwarfed plants in a rosette-dwarf form, and generally cannot joint or head. Plants infected in early spring show symptoms successively during the green-up stage and jointing stage, with stripes on the heart leaf and a relatively darker green leaf color
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How to Prevent and Treat Nitrogen Nutrient Imbalance in Wheat
Symptoms of nitrogen deficiency in wheat: plants grow slowly, individuals are stunted, tillering is reduced; leaf color fades, old leaves turn yellow, senesce early and wither and drop; stems and leaves often take on a red or purplish-red color; the root system is slender, and total root mass is reduced; young spike differentiation is incomplete, and the spike shape is smaller. Symptoms of nitrogen excess in wheat
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How to control take-all disease after wheat turns green?
Wheat take-all disease, also known as black foot disease, is a typical root disease. It can occur throughout the entire growth period of wheat, and the pathogen only infects the roots and the basal 1-2 nodes of the stem. The severity of the disease is affected by many factors. Continuous cropping and repeated cropping make the disease severe; when wheat and summer corn are grown twice a year and continuously for many years, the disease occurs severely; low soil fertility and an imbalanced ratio of nitrogen, phosphorus, and potassium, especially in phosphorus-deficient plots, make the disease severe; rainy springs and high soil moisture are conducive to the disease.
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Pay attention to preventing dry hot wind in the late growth stage of wheat
Dry hot wind is a frequently occurring meteorological disaster in the late growth stage of wheat. After being damaged, wheat can generally lose 5%-10% of its yield, and in severe individual cases it can reach more than 20%. The harm of dry hot wind to wheat is mainly due to high temperature, drought, and strong wind, which cause large amounts of water in the air and soil
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Key Management for Mid-to-Late Stage Wheat: Focus on the "One Spray, Three Preventions"
The mid-to-late growth stage of wheat is a critical period for yield formation and also a peak period for various pests and diseases. Doing a good job of field management during this period is crucial for ensuring a bumper wheat harvest. In recent years, the "one spray, three preventions" technique has been widely adopted in mid-to-late stage wheat management. It is
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Wheat seed dressing with chemicals can prevent and control multiple diseases and pests
Wheat is the second largest food crop in China after rice. China has a vast territory and complex geographical conditions. Wheat has many types of diseases and pests, a wide range of occurrence, and very serious damage. According to statistics, every year in China, wheat yield is reduced by about
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Control methods for soybean mosaic virus in soybean cultivation
1) Select disease-resistant varieties: Different soybean varieties have different resistance to soybean mosaic virus, so selecting disease-resistant varieties suited to the local area is the most effective measure for controlling soybean mosaic virus. Disease-resistant varieties include Qihuang No. 22, Ludou No. 4, Ludou No. 1, Ludou No. 7, Ludou No. 6,
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How to prevent and control soybean root rot? These methods you need to master
1. Select disease-resistant varieties. 2. Rotate with non-host crops such as corn, millet, and sweet potato. 3. When sowing, apply more farmyard manure, potassium fertilizer, phosphate fertilizer, etc. 4. When sowing, apply metalaxyl granules so that soybean roots can absorb them to prevent root infection. 5. Before sowing, use seed weight
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How to prevent and control spring soybean virus disease? Detailed explanation of occurrence patterns and control methods
Viral disease is a major disease of spring soybean, causing about 15% yield loss in normal outbreak years and over 50% yield loss in severe outbreak years. 1 Symptoms After spring soybean is infected, the upper leaves first show light yellow-green mottling, and the mesophyll bulges in a blister-like manner along the veins; then the mottling and wrinkling become increasingly severe, the leaves become deformed, the mesophyll protrudes, the leaf margins curl downward, plant growth is clearly stunted, the number of pods decreases, the pods are small and slender, and the pods show deformed symptoms such as flattening and bending. After infected spring soybean matures, the seeds are clearly smaller, and light brown streaks can appear on the seeds.
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How to prevent and control pests and diseases during soybean cultivation?
I) Control of cyst nematode. 1. Strengthen quarantine and protect disease-free areas: it is forbidden to transfer soybean seeds from diseased areas. 2. Agricultural control: implement crop rotation of soybean with gramineous crops or non-host plants such as cotton; where conditions permit, paddy-upland rotation is best, and this is currently the most important
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