Cucumber is a thermophilic vegetable with relatively loose temperature requirements. Commonly used temperature range is 15～32°C, extreme tolerable low temperature is 5°C (stand-by temperature of non-thorn gherkin is 8°C), and tolerable high temperature is 40°C. . Temperature management is an important factor in the high yield of vegetables. The regulation of environmental conditions during the management process is an important factor in determining whether or not high yields are produced. Therefore, in the management process, management and control of temperature should be strengthened.
In the management of greenhouse cucumbers and thornless cucumbers, attention should be paid to temperature regulation, which is appropriate and not excessive. For example, during the “Qingmiao†stage of the winter and spring sorghum cultivation, the temperature control can be adequate and the operating temperature should not be too low; if the “sacrifice†is used, the temperature is too low and it is prone to low-temperature-induced low temperature barriers. Phenomenon (leaf yellowing or "fish scaly") affects the overall growth and yield of the plant. If it is cultivated in late summer, the management measures are insufficient, which may cause the temperature of the greenhouse to be too high, and the phenomenon of weak plant growth, premature senescence, and serious disease may occur.
These prove the uncomfortable temperature and cause abnormal plant growth. Therefore, in the management process, strict attention should be paid and strengthened. In the management process, it is recommended that “fixed-temperature management†be implemented to properly grasp the temperature according to the actual situation of individual booths, create favorable conditions for plant growth, and lay a good foundation for high yields.
Daily management should promptly wipe the contamination of the shed film, maintain the good light transmittance of the shed film and form a good light receiving condition in the shed. When the winter encounters cloudy days or rain and snow, the straw curtain or insulation is uncovered, and it should be gradually and slowly, to avoid sudden light after a long period of haze, and to prevent the plants from appearing physiological dehydration and wilting.
We're professional Ureterorenoscopy Set manufacturers and suppliers in China, specialized in providing high quality medical instruments with reasonable price. We warmly welcome you to buy or wholesale bulk Ureterorenoscopy Set for sale here and get quotation from our factory.
Ureterorenoscopy Set,Ureterorenoscopy Instruments,Ureterorenoscopy Biopsy Forceps,Ureterorenoscopy Ureteral Stone Basket Spiral
Tonglu WANHE Medical Instrument Co., Ltd , https://www.vanhurhealth.com