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What effects does waterlogging damage have on the growth and development of tea plants?
Tea plants require moist air conditions, but they are not tolerant of excessively wet soil. When there is too much soil moisture or even standing water on the ground, the respiration of the root system is impeded, and its ability to absorb water and nutrients is reduced, seriously affecting the growth of buds and leaves and lowering the yield and quality of fresh leaves. In severe cases, the roots suffocate, anaerobic microorganisms become active, and organic acids are produced that poison the tea plant roots, causing peeling, necrosis and rot. The manifestations of tea plants suffering from waterlogging damage are: few absorbing roots, short and small lateral roots, a shallow root layer, and some lateral roots extending horizontally rather than downward, or even growing upward. Severely affected
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The development prospects for Butterfly Bush are extremely broad
Butterfly Bush is the most popular landscaping tree species in Europe and America, and is highly suitable for promotion in North China, Central China, East China, and parts of Northeast and Northwest China. In terms of landscaping effects, this tree species has many advantages. It is a perennial, fast-growing, semi-evergreen shrub with grayish-green leaves that are large and opposite, about 25 cm long. From summer to late autumn, it continuously blooms with lush panicles, the inflorescences about 40 cm long, in diverse colors including purple, blue, pink, white, and yellow. The flowering period lasts up to 6 months, which can compensate for the scarcity of blooming plants in summer. The flowers have a strong fragrance, attracting many
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Analysis of the Introduction Performance and Development Strategies of Southern Pears in Hezhou
According to the deciduous fruit development concept of "southern pears and northern peaches" proposed by the Ministry of Agriculture in 1996, Hezhou City, Guangxi, began introducing southern pears from Zhejiang University, Guilin, Guangxi, and other places in 2000. A total of 11 southern pear varieties were introduced, and the current cultivation area is 1066.67 hm2. It is expected that the pear output in 2006 will reach 25,000 t. Based on current introduction observations, the soil, climate, and other natural conditions in Hezhou City are very suitable for the growth of southern pears. Many varieties show advantages such as high and stable yield, good taste, rich flavor, and strong resistance. The products are widely welcomed by consumers in the market.
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A Detailed Explanation of Edible Lily Cultivation Techniques and Development Prospects
May I ask the agricultural network experts: CCTV has broadcast a special report on edible lilies. May I ask where seeds are sold? Are there demonstration bases that can be used for reference? What are its development prospects? Is cultivation very difficult? According to China's current rural industrial structure adjustment, developing edible lilies has prospects, because it is also a new type of specialty vegetable. At present, the development of edible lilies in Xiguoyuan Township and Pengjiaguan Township in the suburbs of Lanzhou is the best, and it has become their advantageous product. You can go there to visit and learn.
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Degradable-film controlled-release fertilizer for rice successfully developed in Hunan Province
The Soil and Fertilizer Institute of Hunan Province has developed a degradable-film controlled-release fertilizer for rice that can be widely applied in rice-growing regions of China with no side effects. Using natural and semi-natural polymer materials as the main coating components and adopting a self-developed new fluidized dual-spray-bed coating process, the Soil and Fertilizer Institute of Hunan Province developed a degradable-film controlled-release fertilizer whose nutrient release can be artificially controlled within 30 to 330 days. This controlled-release fertilizer is non-toxic, completely degrades within 2 years after being applied to the soil with no residue, and can reduce fertilizer pollution of the atmosphere, soil, water bodies and other environments.
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How can the rabbit industry develop? These ten principles must be kept firmly in mind
The prices of white fox fur and blue fox fur at the Shangcun fur market in Suning County, Hebei Province have never been so identical. Blue fox fur (white fox fur) 90cm 350-360 yuan, 95cm 400 yuan, 1 m 450 yuan, 1.1 m 550 yuan. Because the off-season has already begun, the market appears quiet. According to observation, the expressions of the fur traders do not show a worried look; on the contrary, most practitioners reveal a confident look of being sure to succeed. In their spare time, they chat, discuss future market conditions, and many are joking around, while the fur
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What are the characteristics of each developmental stage of soybean?
(1) Germination stage: refers to the period from seed germination to seedling emergence, which takes 10-15 days for spring soybeans and 4-6 days for summer soybeans. The germination stage of soybean mainly requires appropriate temperature and suitable soil moisture. It is required to carry out seed treatment before sowing, improve the quality of land preparation, sow at the right time, ensure that the field soil is loose, and prevent excessive soil moisture and poor permeability, which can delay seedling emergence or even cause seed rot. (2) Seedling stage: refers to the stage from seedling emergence to flower bud differentiation. It requires an average daily temperature above 20°C and 19%-20% soil
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Analysis of the problems existing in the development of the eel industry and the countermeasures and suggestions
I. Seedlings and fingerlings The main species farmed for eel in China are the Japanese eel (Anguilla japonica) and the European eel (Anguilla anguilla). The resources of both the European eel... have already approached exhaustion, with annual production falling from 3,000 tons 30 years ago to 100-200 tons. From June 3 to 15, 2007, at the Conference of the Parties to the "Washington Convention" (CITES) held in the Netherlands, the European eel was listed in Appendix II of the Convention on Endangered Species of Wild Fauna and Flora, and this will be formally implemented starting in January 2009: China imports about 60 tons, or about 150 million individuals, of European eel seedlings and fingerlings annually, and farmed European eel accounts for more than 1/3 of eel production, while European eel accounts for about 40% of exported roasted eel. Japanese eel resources have also severely declined. In recent years, the seedling and fingerling resources of Japanese eel in Asia have remained at about 100 tons, and the annual catch in recent years has remained at 80-100 tons. In 2008, the output of European eel seedlings and fingerlings was about 90 tons, half of a normal year. The output of Japanese eel seedlings and fingerlings was about 35 tons, one third of a normal year. The severe shortage of seedling and fingerling resources has led to soaring prices. Moreover, artificial breeding of eel seedlings and fingerlings will not be able to form production capacity in the near future.
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Purple-marked rice male sterile lines developed in Guangxi
The rice male sterile lines carrying the purple-leaf marker trait, Xianhong A and Zhihong A, developed by the research team led by Guangxi Outstanding Expert Researcher Liang Shirong and Guangxi Academy of Agricultural Sciences Vice President Researcher Deng Guofu, passed the field technical appraisal organized by the office of the Guangxi Regional Crop Variety Approval Committee and conducted by a relevant expert group on August 3, 2007. After strict field investigation and indoor microscopic examination, and after hearing the research team's technical report and answers to questions, the expert group unanimously concluded that Xianhong A and Zhihong A have stable agronomic traits, stable male sterility, and good flowering
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Rice direct seeding machine successfully developed, efficient and versatile, boosting rice sowing
Recently, a "Multifunctional Soil-Covering Direct Seeding Machine Rice Mechanical Direct Seeding Field Demonstration" organized by the China National Rice Research Institute was held in Buqiao Village, Fuyang City, Zhejiang Province, with more than 40 experts from home and abroad attending the field observation event. In recent years, China's rice mechanical transplanting technology has developed rapidly, and a number of different types of transplanters suited to China's rice production have been developed and produced. However, the development and research of rice direct seeding machines and mechanical direct seeding technology have lagged relatively behind, and no mainstream rice mechanical direct seeding technology has yet taken shape. To overcome the problems of poor seedling establishment, easy lodging, premature aging, and difficult and costly weed control
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