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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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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 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 excessive wheat growth? These cultivation measures are very practical
1. Compaction and deep tillage, controlling excessive growth and promoting sturdy growth. For excessively growing wheat fields, tools such as small stone rollers, wooden rollers, and cement cylinders can be selected according to local conditions for manual or animal-drawn compaction. Compaction should be carried out on sunny days when the dew has dried and the surface soil is dry. For fields with overly vigorous growth, compact multiple times in the same direction at an interval of 70 days
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How to prevent wheat seedling death in winter? Keep these measures in mind
In recent years, freezing damage to wheat has occurred every year in our county. Apart from the factors of the wheat variety itself, the main cause is that winter management measures are neglected by farmers. In order to reduce the occurrence of freezing damage to wheat this year, the technical advisor specifically put forward the following technical
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How to prevent and control wheat sharp eyespot? Early prevention is key
Recently, some individual wheat growers reported that the tips of the wheat turned yellow, small pale yellow spots appeared on the leaf sheaths, and crisscrossing stripe-like yellow markings appeared on the base, commonly known as "flowering stems," with severe cases showing dark brown rot. These are the typical symptoms of wheat sharp eyespot. It is understood
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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 prevent and control peanut bacterial wilt? Detailed explanation of prevention and control methods
1. Symptoms. Peanut bacterial wilt mostly begins to develop around flowering, but the disease is most severe during the peak flowering and pegging stage, and the condition eases somewhat after pod formation. The most notable feature of its symptoms is: the aboveground leaves of diseased plants wilt rapidly, the vascular bundles in the underground roots turn brown, and when the root crown is cut lengthwise, in moist conditions a cloudy bacterial ooze can be squeezed from the cut. If the diseased root crown section is suspended and immersed in clear water, a smoky cloudy liquid can be seen gushing from the cut, which is a reliable basis for confirming this disease. Usually the chlorophyll of the wilted leaves has not yet been destroyed, and although the leaves lack gloss, they still remain green, hence the name bacterial wilt.
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Adopting the "three protections" technique in peanut cultivation significantly increases yield
1. Preventing excessive vegetative growth. For peanut fields with relatively high soil fertility, good water and fertilizer conditions, and vigorous plant growth, when growth is too vigorous and excessive vegetative growth occurs, spraying hormones, namely plant growth regulators, can inhibit vegetative growth, promote reproductive growth, and coordinate the relationship between vegetative growth and reproductive growth.
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How to prevent and control pests and diseases in autumn peanut cultivation
The main diseases of peanut include leaf spot and rust. For leaf spot, spray pesticide in time at the early stage of disease onset to prevent and control the disease. Use 75% chlorothalonil + 70% thiophanate-methyl at 1000-1500 times dilution; or 30% copper oxychloride + 75% chlorothalonil at 1000 times dilution, spraying 2-3 times, once every 10-15 days,
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