In the booting stage of wheat, it is said to be cold and chilly due to the harm occurring at temperatures above zero. From jointing to booting stage of wheat, the young tissue has more moisture and less resistance to low temperature. At this time, the panicle development period before and after the formation of tetrads (booting stage) requires a daily average temperature of 10 to 15°C, which is extremely sensitive to the environment's low temperature and water deficit, especially low temperature, if the minimum temperature is lower than 5 to 6°C Will suffer. Its characteristic is that the stem and leaf parts are not damaged, and there is no abnormal performance. The affected part is all or part of the spikelets of the ear, which is characterized by delayed heading or empty spikelets of white spikes, or partial spikelets in the ears, only partially sturdy. , seriously affecting production. The defense and remedial measures for cold chilling of wheat mainly include the following two aspects.
Watering topdressing to keep the soil moisture content adequate and moist in the field is of great significance for preventing and remediating low temperature and freezing damage. Immediately before or after the onset of low-temperature freezing injury, immediate nitrogen fertilizer and watering should be applied to promote small tillers and spikes, increase tiller percentage, and compensate main stem losses. Generally, about 10 kilograms of urea are applied per acre, and the amount of topdressing can be increased as appropriate for the frozen wheat fields, but the maximum amount is not more than 15 kilograms per mu.
Spraying plant growth regulators with foliar application of plant growth regulators can maintain the stability of plant cell membranes, increase the resilience of wheat, and can repair the damage caused by low temperatures on wheat, which has a certain effect on defense and alleviation of low temperature freezing damage. After freezing and freezing injury, spraying plant growth regulators such as Tianda-2116 (Zhuangmiaoling) on ​​the surface of frozen wheat leaves has a significant role in promoting the recovery of wheat, and the rapid growth of medium and small tillers is reduced to a spike.
Our polypropylene cap is combined by three parts which includes the outer-cap, inner cap and the medicinal synthetic polyisoprene gasket. The function of the outer cap can give us a force to open the cap .At the same time ,it also helps to prevent the external pollution. The polyisoprene gasket locates in the middle place of the combined cap. And the inner cap will contact directly with the medicine. the good quality of the inner cap can gives us a safety guarantee for our health.Our workshops comply strictly with the GMP standard and this allows to offer high quality products at best prices.
Pull-Ring Cap,Pull-Ring Cap For Plastic Bottle,Pull-Ring Cap For Soft Bag,Bottle With Pull-Ring Cap
SUZHOU CRH PHARMACEUTICAL TECHNOLOGY CO.,LTD , https://www.crh-health.com