Vegetable cultivation cover film

The choice must also be scientific. "Hello, Guoguo Hotline, my bean seedlings have a paste, are there any remedies?" "I'm from Liaocheng. Please look for the experts from the Vegetable Association. How do I plant an open-air cucumber? Is there always a wilting phenomenon?"...
According to the telephone, the vegetable growing areas in our province this spring have caused some unpleasant phenomena such as roasted seedlings due to the period of use, the method of use and the selection of types of plastic film covered by some vegetable farmers. , frost damage, weeds, etc., especially open-air vegetable cultivation. Although mulching has created a relatively suitable and stable growth environment for vegetable growth, it has played a good role in heat preservation, water conservation, and fertilizer conservation to some extent, but if it cannot be used scientifically and scientifically, it will bring unnecessary trouble to production. . Therefore, the author summarizes the following points for attention, for reference, to prevent the occurrence of similar conditions in the summer or the following year.
Pay attention to prevent the emergence of roast seedlings mulching vegetable mulching phenomenon often occurs, mainly because the seedlings did not release the soil immediately after exhumation, or the amount of air is very small, seedlings under the film by strong light, high temperature and burn the leaves. In other words, after planting or after air release, the seedling rhizomes of the seedling roots are not closed tightly, and high-temperature, high-humidity gases under the membrane are flushed out of the holes and damage the leaves.
Preventive measures: especially open-air vegetables covered with plastic film, after the sowing, to strengthen the field observation, after the emergence of seedlings promptly release the wind, and the seedlings pulled out of the membrane, with fine soil pressure vents, after the temperature rise, to Remove the film at a proper time. This is the case with pastes like beans, reminding farmers who have similar conditions that preventive measures should be strengthened during the planting process in the coming year.
Pay attention to the management of fertilizer and water management vegetable mulching is often prone to shortage of fertilizer and water, because the use of mulching to promote the growth of vegetable plants and high-yield early maturing, etc., at this time the plant on the fertilizer and water conditions also increased accordingly, the peak demand for fertilizer and water correspondingly ahead of schedule; If you can not keep up with the fertilizer, it will lead to physiological water shortage, lack of fertilizer and other conditions.
Therefore, it is necessary to fully understand that the plastic film has the functions of water retention and fertilizer retention, correctly grasps the characteristics and laws of water demand after the vegetable film is covered, and timely water and fertilize. If the base fertilizer is used insufficiently, it should be added according to the seedling growth and timely watering. The fertilizer needed by the plants to prevent premature degeneration due to deferment. If there is insufficient soil moisture or dry weather, vegetable plants should be replenished with water in the early stage of their growth. The water should be dry and water should be sufficient to meet the vegetable's demand for water, so as to avoid the occurrence of physiological deficiency due to water shortage and affect the growth of vegetables.

Icu Bridge Type Ceiling-Mounted system,specially designed for intensive care rooms,the entire process wards, the recovery room.Supply flexible, first-rank nursing satisfy patient's separate treatment and nursing demand.Unique design lies in it all hides the electrical cable and pipeline in the ceiling-mounted arm.The modular design and multiple configurations.As clients' requirements,providing reasonable ICU Combination Ceiling-Mounted pendant (Apart Dry-Wet). Advanced spray technology, the intelligent combination of innovative ways to make the bridge pendant with diverse functions.  

icu room birdge

Icu Room Bridge

Icu Room Bridge,Medical Pendant System,Manual Crane,Motorized Pendant

Shandong Lewin Medical Equipment Co., Ltd. , https://www.lewinmed.com