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Introduction to the high-starch processing-type sweet potato variety Yushu Wang
The new high-starch "Yushu Wang" sweet potato variety has red skin and white flesh, shows starch when cut open, short and thick stems and vines, strong stem and leaf growth, many branches at the base, concentrated tuber formation, and a high rate of large tubers. A single plant can form 4 to 8 tubers. Spring sweet potatoes contain up to 37% starch, with a drying rate of 48%. The yield of spring sweet potatoes can reach 6000 to 9000 kg per mu, and the highest yield in small demonstration plots can reach more than 10000 kg. It is easy to manage, does not require turning the vines, and is tolerant of fertilizer, drought, and poor soil; it has strong resistance to rot disease, high sprouting ability, wide adaptability, and is easy to store. It is an ideal variety for processing, and
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Three Major Types of Phytotoxicity to Guard Against in Cotton Cultivation
Diagnosis and identification of phytotoxicity from insecticides and fungicides. The severity of phytotoxicity from insecticides and fungicides depends not only on the cotton variety, growth stage and morphological characteristics, but also on the type of pesticide, as the symptoms of damage differ for each. For example, dichlorvos has an extremely strong vaporizing effect; spraying twice with a 1000-fold solution can scorch cotton leaves dry. After phytotoxicity from lime sulfur mixture, the leaves and boll husks of the cotton plant develop scorched patches, and the leaves soon dry up and drop off. Lime sulfur mixture is a strongly alkaline pesticide; Bordeaux mixture can only be used 7 to 10 days after its application. If lime sulfur mixture is sprayed within 1 to 2 months after spraying Bordeaux mixture, the cotton leaves will develop black copper sulfide deposits, causing phytotoxicity. In short, when using insecticides and fungicides on cotton, a certain interval should be maintained between successive applications of several pesticides (especially inorganic pesticides), to prevent phytotoxicity caused by reactions between pesticides with different modes of action. In addition, the severity of cotton phytotoxicity is also affected by the environment; for example, when pesticides are sprayed under high temperature, the large amount of water evaporation caused by the heat increases the pesticide concentration, causing spots, yellowing and curling of cotton leaves, and even scorching and death.
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Control Methods and Rescue Measures for the Three Major Types of Pesticide Damage in Cotton
1. Strict operation and effective prevention. When using the various types of pesticides mentioned above on cotton, the operating procedures must be strictly followed and the pesticides used rationally (including the type, concentration, method and timing of application, etc.), so as to give full play to the pesticide's efficacy while reducing costs and preventing pesticide damage. 2. Timely "rescue" to eliminate the "danger". After pesticide damage occurs, a large amount of water can be sprayed on the leaves to wash it off; in the soil, irrigation, drainage to wash out the pesticide, or neutralization and detoxification with safeners can be used. If Bordeaux mixture is mistakenly used, since copper ions cause the pesticide damage, 0.5%-1% lime milk can be sprayed; spray equipment that has been used for
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What are the main coat color types of pigs?
Pigs have many coat color types, mainly caused by differences in the type and distribution of melanin. There are two types of melanin: one is eumelanin, which exists in two forms, black and brown; the other is pheomelanin, which exists in two forms, yellow and red. Melanin is a conjugated protein, and all pigs contain it, only the amount and distribution differ. For example, the content in the coat of white Large Yorkshire pigs is about 0.07%, while black pigs contain 6.18%. The main coat color types of pigs are
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What are the types of pig parasites? A detailed explanation of common types
The main parasites harmful to pigs can be broadly divided into the following three categories from the perspective of economic impact and degree of harm: (1) Those that are not very serious but are widespread. These parasites include pig Cysticercus tenuicollis, Strongyloides ransomi in piglets, Trichuris suis (pig whipworm), Gnathostoma hispidum, Oesophagostomum dentatum (pig nodular worm), Ascarops strongylina (pig spiral stomach worm), Macracanthorhynchus hirudinaceus, pig lice, Eimeria suis, etc. (2) Those that are seriously harmful and widespread. These parasites include Fasciolopsis buski, Ascaris suum, pig Metastrongylus
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Introduction to the Bartlett pear variety: getting to know this type of pear
Declaring unit: Shandong Provincial Fruit and Tea Technology Guidance Station. Approval status: recognized by the Shandong Provincial Crop Variety Approval Committee in 1993, and recognized by the National Crop Variety Approval Committee in 1994. Variety registration number: GS14002-1993. Variety origin: The Bartlett pear is a West Jersey pear, introduced into China from abroad in the early years, and is widely distributed in China, with the most cultivation in Shandong Province. Characteristics: Young trees are vigorous, with strong budding ability and medium branching ability
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What are the varieties and types of licorice?
1. Licorice (Glycyrrhiza): The root is cylindrical, 30-120 cm long, 0.6-3 cm in diameter. The outer bark varies in tightness, red-brown, dark brown or grayish-brown, with obvious wrinkles and furrows, commonly known as "drawn furrows and sunken ridges," with sparse fine rootlet scars. The lenticels are transversely elongated, and the cut surfaces at both ends are slightly sunken in the center. The center of the cut section shrinks to about the size of a pepper eye, called "pepper eye." The texture is solid and heavy, the fractured surface is fibrous, yellow-white, starchy, with obvious cambium ring markings and radial striations, and fissures. The rhizome surface has bud scars
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Polyploid black locust is a new type of tree species suitable for growing on poor soil
A sapling less than 10 cm long, looking like nothing more than a pea sprout, planted on barren land where nothing will grow, can shoot up to more than 3 m tall in a single year. This is a new type of tree species suitable for planting in China's western regions - polyploid black locust (Robinia pseudoacacia) - successfully cultivated by the Lvyuan Seedling Research and Promotion Center of Changyi City, Shandong Province, together with experts from Beijing Forestry University, using plant tissue culture technology on the basis of introduced foreign tree species. With its excellent drought resistance, salt-alkali tolerance and tolerance of poor soil, it has become a highly favored "golden sapling"
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Zhengmai 975 is a high-yield, high-quality noodle-type wheat variety.
Variety origin: Zhengmai 975 is a new high-quality noodle-type wheat variety most recently bred by the Fengyou Breeding Room of the Wheat Research Institute of the Henan Academy of Agricultural Sciences, and it passed the approval of the Henan Provincial Crop Variety Approval Committee in August 2001. Yield results: in the two-year provincial high-fertility spring-water group regional trial, the average yield per mu increased by 6.09% compared with the large-scale production control variety Yumai 18 in Henan Province, and its yield ranked first in Jiaozuo, Xuchang, Zhoukou and other places. Trial plantings and seed propagation in various places have shown that it has relatively high yield potential and good adaptability. For example, in 1999 Yuanyang County
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Characteristics and Types of African Violets Explained
African violets prefer a warm, humid, well-ventilated, semi-shaded environment; they dislike high temperatures and fear strong light. The suitable growing temperature is 18-24°C; in winter the temperature must not drop below 10°C, and in summer it must not exceed 30°C, with relative humidity of 40%-79%. The plant is short and forms a rosette shape; the leaves are thick and fleshy like velvet; the flowering period is long, and the flower color is mainly blue-purple, which is how the common name "violet" came about. They are easy to propagate and are a popular indoor potted ornamental plant worldwide. Through hybridization, their horticultural varieties have continued to increase, now numbering more than 2,000
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