Appropriate temperature for cotton seedling emergence is 18°C～25°C, and the temperature rises quickly after rain, which is very suitable for seedling emergence in temperature, and the seedlings have the possibility of partial occurrence.
1, agricultural control cotton eradication of weeds, to strengthen water and fertilizer management, promote the early occurrence of cotton seedlings; combined with seedlings, Dingmiao remove alum strains, and brought out of the field concentrated burned.
2. Before the 3 leaf plants of the chemical control seedlings are used, when the leaf rolling rate reaches 5% to 10%, when the true leaf leafing rate reaches 10% to 20%, 10% imidacloprid wettable powder per acre is used. 15 grams of water evenly sprayed 30 kilograms, or 10% of acetamiprid EC 3000 times, or 20% acetamiprid WP 1500 to 2000 times, or 20% butyl thiocarbamid EC 2000 to 4000 times. When spraying, focus on the cotton buds and leaves and note that the inverting sprayer sprays back to the leaves.
Portable X Ray Machine
XX- line of portable
X-ray units is designed to the principle of low cost and high reliability,
which is characteristic in convenient to carry, easy to operate, and highly
automated. X-ray tube and HT coil are all produced by DNDT which guarantees
system consistency and keep this unit have a longer service life.
Weight is further
reduced with the using SF6 insulation and Forced cooling fan, prolongs X-ray tube
life, makes this unit suitable for construction site, field work and high above
the ground work..
Control unit is designed
with microprocessor control and frequency conversion technique. With functions
of fully automatic warm-up program, fault display, over voltage and mis-start
protection, the stability and service life are much improved
Portable X Ray Machine
Portable X Ray Machine,XXGH Panoramic X Ray Machine,XXGHA Panoramic X Ray Machine,Mini Portable X Ray Machine
Dandong Nondestructive Testing Equipment Co., Ltd. , https://www.ddchinaxray.com