From August 16 to August 20, the city’s normal heavy rains, with a rainfall of 50 to 110 mm and Lucheng’s largest rainfall of 103 mm, caused water accumulation in some cotton fields, which had a certain impact on cotton growth. To this end, cotton farmers should effectively strengthen the management of cotton fields after rain, prevent premature decay, prevent rotten bells, prevent diseases and pests, and promote normal cotton boll growth. Focus on the following measures:
I. Anti-lodging for early effluxing and embossing Cotton spitting during August and September coincides with the cotton season. For the rainy season, the cotton field with accumulated water should promptly remove the stagnant water from the cotton fields after the rain to prevent the cotton plant caused by the damage. Yellow leaves, rot roots; on the field, although there is no accumulation of water, but the clay soil is heavy and there is waterlogging, the cotton field can be digging water in the large cotton line to reduce the surface moisture of the cotton field and improve the cotton field growth environment. After the heavy rain, soil must be cultivated in time to prevent the lodging of cotton.
Second, the active pruning and preventing bad bell moisture after the cotton field, such as the closure of cotton branches and leaves, easy to cause the middle and lower layers of cotton hair black rot. The buds after "Liu Qiu", the flowers after the "White Dew", the axillary buds, the empty branches and the yellow old leaves should also be removed as soon as possible to improve the ventilation and light transmission conditions of the cotton fields and reduce the number of bad bells. The lower rotten bells that have been bolled for more than 40 days, the bell shells have faded, yellowed, or have dark spots begin to be picked in time. After soaking in 1% ethephon solution and drying, the seed cotton with good boll opening can be obtained.
Third, extra-root topdressing to prevent premature decay Cotton root activity in the late growth period weakened, reduced fertilizer absorption capacity, late in the cotton and easy to premature aging, to take outside the top dressing effect is better. Per acre can be sprayed with 0.2% potassium dihydrogen phosphate or 2% potassium chloride and 2% superphosphate leachate plus 1% urea mixed solution 50 ~ 60 kg, spray evenly, interval 7 days or so, even spray 3 times It has a good effect on preventing premature aging, increasing the weight of bolls, and promoting multiple knots of autumn peaches, especially for cotton fields that lack water and fertilizer. The spraying time is performed after 4 pm or on cloudy days.
Fourth, timely prevention and control of pests and diseases Continuous rainy, low temperatures, can easily lead to cotton red stem blight, cotton brown wilt disease, rotten bell, cotton bollworm, red bollworm, Spodoptera litura, tobacco whitefly (also known as cotton aphid) Other pests and diseases occur. The stem blight of cotton leaves is a physiological disease, combined with cotton anti-premature decay, spraying potassium dihydrogen phosphate solution as early as possible; for cotton brown wilt disease, cotton rotten bell disease can be used 30% hymexazol 1000 times or 80% Bicinc liquid 1000 times solution and 70% thiophanate-methyl wettable powder 1000 times solution or 70% chlorothalonil wettable powder 800 times solution, etc., uniformly sprayed and controlled; cotton bollworm, red bollworm, twill Night moth, etc. can be used 20% solution of methomyl EC 1500 times, or 2.5% of the 1000 times of kungfu intron emulsion spray control; Bemisia tabaci can be trapped with yellow plates or with 10% imidacloprid 1000 times, 1.8% avermectin 1500 times liquid spray control.
V. Spraying ethylene to promote bolling Late-maturing or a large proportion of autumn peach fields, before the frost can not normally mature and smooth bolling, timely spraying ethephon appropriate amount, can boll early boils, increase production and quality. It is not too early to use ethrel ripening. Generally, in early October, the highest daily temperature is above 20°C on sunny days. Use 40% ethephon 150-200 ml/mu, 50 kg water, and apply to cotton plants. Focus on the upper late autumn peach, can promote early maturity and reduce the bad bell. In order to ensure the efficacy of the drug, it should be used with it, and it should not be mixed with alkaline pesticides.
main feature
1.ZF series of reflective shadowless lamp is widely used in various occasions operation lighting needs, is the ideal lighting equipment of modern operation room.
2. Full close streamline lamp body design completely meets the demand of the sterilization and high standard of laminar flow purification in operation room.
3. Adopting more than 5280 slices of reflection mirror, guaranteeing 1200 mm lighting depth.
4. Special design of color temperature compensation provides closer to that of natural sunlight and helps the doctor to distribute operation parts clearly and accurately.
5. The back-up battery will start work within 0.2 seconds automatically in case the main battery is damaged,ensuring the continuation of surgical operation. There`s failure indication in the handle control panel, to recommend the bulb to be changed after operation.
6. detachable handle jacket ,can be used for high temperature (≤134℃)sterilized.
7. Digital-control circuit offers many functions, with 10 segment brightness selection stepless lighting regulation, brightness memory, low voltage
start-up and power on self test etc.
8. The life-span of OSRAM halogen bulb is up to 1500 hours; the bulbs can be changed easily.
9. Germany ORSAM lamp socket,thermostability
10.Balance arm can be optional Germany imported or domestic.
11. mould Die-casting Eight edge type Revolving arm.
Double Dome Halogen Operating Light
Double Dome Halogen Operating Light,Double Dome Halogen Operating Light,LED Halogen Light,Double Dome Halogen Operating Lamp,Double Dome Operating Lamp
Shandong qufu healthyou Medical Technology co.,Ltd , https://www.kangerjian-medical.com