论文部分内容阅读
1 保温嫁接后砧木与接穗的愈合需要一定温度,因此要注意苗床保温。嫁接苗适宜的温度;白天应维持在22～25℃,夜间维持在14～16℃。由于早春气温变化大,特别是在塑料薄膜覆盖下,昼夜温差大,即使白天晴天或阴雨天,中午和早晚温度变化都很大。所以,应特别防止高温灼苗和低温冻苗,如果夜间气温低于14℃,或者有寒流侵袭,应及时加盖草帘防寒,并密封苗床保温。2 保湿嫁接苗由于砧木和接穗均有伤口,所以极易失水而萎缩。因此,要保持苗床内较高的湿度。因此,要
1 insulation Grafting rootstock and scion after healing requires a certain temperature, so pay attention to seedbed insulation. Grafting appropriate temperature; day should be maintained at 22 ~ 25 ℃, at night to maintain at 14 ~ 16 ℃. Due to the large temperature changes in early spring, especially in the plastic film covering, the temperature difference between day and night is big, and the temperature varies greatly at noon and in the morning and evening, even in sunny day or rainy day. Therefore, special precautions should be taken to prevent hot frying seedlings and cold frying seedlings. If the temperature is lower than 14 ℃ at night or a cold current is invaded, the straw hat should be stamped with cold to prevent cold and seal the seedbed for heat preservation. 2 moisturizing grafted seedlings as scions and rootstock have wounds, it is easy to lose water and shrink. Therefore, to maintain the higher humidity within the seedbed. So, want