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How to prevent and control gray leaf spot when growing Isatis indigotica
Symptoms: On both sides of the leaves of affected Isatis indigotica, round lesions form, 2-6 cm in diameter, slightly sunken, grayish-white in the center, with brown edges. In the later stage, the lesions become thin and brittle, crack or perforate; when moist, a brown mold-like growth appears on them, which consists of the pathogen's conidiophores and conidia. Old
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How to prevent and control grape black pox disease? Key points for disease prevention when growing grapes
Grape black pox disease is also known as scab and bird's eye disease. Common names include toad's eye, liulong, and black spot. This disease is an important disease of grapes. It generally begins to occur in mid-to-late April, with the peak period from mid-to-late May to early June, and it is severe in rainy seasons. Throughout Shanxi Province
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How to control the grape clearwing moth? Timely prevention and control is needed when growing grapes
In recent years, the grape clearwing moth has occurred in many vineyards and courtyard grapes in Xuzhou, mainly damaging grape vines, causing reduced yields and even the death of entire plants. The grape clearwing moth damages young grape shoots and 1-2 year old vines with its larvae. The young larvae bore into the tender shoots and feed on the pith, causing
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When is the best time to harvest Gastrodia elata seed capsules?
After the Gastrodia elata flower is pollinated, the ovary gradually enlarges, and the capsule is light brown or pink, elongated ovoid, with 6 longitudinal ridges. Each capsule contains 10,000 to 50,000 seeds, up to a maximum of 80,000 seeds. The seeds are tiny. They are powdery, and their size and shape are difficult to distinguish with the naked eye
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When growing strawberries, weeds in the strawberry patch must be controlled diligently
Strawberry plants are low-growing and planted at high density, making weed control difficult. In addition, because strawberry patches receive large amounts of base fertilizer and irrigation water, weeds grow abundantly. Weed damage can cause strawberry yields to drop by about 15%-20%. Therefore, attention should be paid to weed control and integrated control measures should be adopted.
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How to manage fertilization well when planting Red Globe grapes?
Red Globe grapes are resistant to storage and transport, high-yielding, with firm and crisp flesh, sweet without being sour, and are deeply loved by consumers in large and medium-sized cities. However, most Red Globe grape growers manage Red Globe grapes according to conventional grape fertilization and management methods, resulting in a large quality gap between domestic Red Globe and imported Red Globe
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What issues should be noted when harvesting sweet potatoes
The sweet potato is a vegetative propagule with no obvious maturity standard or harvest period, but the timing of harvest affects the yield, seed preservation, storage, processing and utilization, and crop rotation of sweet potatoes. Harvesting too early will significantly reduce the yield of sweet potatoes; harvesting too late, the sweet
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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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Don't Forget to Supplement Silicon and Zinc Fertilizers When Fertilizing Rice
In the optimized formula fertilization of rice, people often attach great importance to the combined application of macronutrient fertilizers such as nitrogen, phosphorus, and potassium, but overlook the application of elements such as silicon and zinc. In fact, rice is a crop that absorbs a relatively large amount of silicon, and the stems and leaves generally contain 10
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What are the pitfalls to watch out for when introducing rice varieties?
Rice has entered the sowing season. In recent years, farmers introducing varieties on their own initiative has become fairly common, but few of the introduced varieties perform well in overall traits, and some have even caused severe yield reductions. In fact, the seeds farmers need can be purchased from their local agriculture department and seed department. If
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