Since the beginning of spring, the temperature has been rising, and it is very favorable for the current sowing of corn, with rapid emergence and emergence of seedlings. However, the earliest sheds of sown corn have poor morbidity after sowing and are attacked by cold current. The rate of emergence is low and the uniformity is poor. In view of the above conditions and the fact that this year's spring is one and a half months earlier than usual, the following technical measures should be taken into account in the management of large and small corn seedbeds: First, the rate of sowing of seedlings is low. Prepare the seedlings in time to prepare for them. Second, leaf age in the three-leaf to four-leaf seedlings should be transplanted in a timely manner to reduce the slow seedling period, live trees faster. Third, the emergence has reached the 2 leaf stage, the temperature inside the shed to maintain about 25 °C, not more than 30 °C, to prevent burning seedlings at high temperatures. 3 After the leaf is unfolded, the temperature should not exceed 25°C to prevent the shoots from growing too long. If the temperature exceeds the temperature, both ends of the shed film should be opened for ventilation. Due to the large temperature difference between day and night, close the two end of the film to prevent late frost attacks. Fourth, after transplanting large and small sheds of corn, it is necessary to promptly clean up the ditch around the shed, so that after the rain, the sulcus does not produce water. Economic Rifle Scope,Scope With Adjustable Objectives,Scopes With Adjustable Objectives,Scope For Comfortable Shots Shaoxing Snowpeak Air Gun Factory , https://www.snowpeakairgun.com