不同气候条件下的浇水注意事项

Water under different conditions 

　　浇水必须根据气候条件的变化灵活掌握。一般来说，春季到初夏，苗木处于旺盛生长期，南方雨水多，只要浇水三四次即可?北方是干旱期，要灌七八次。播种苗、扦插苗则需要浇水次数更多。

Water must be flexible according to the change of climate conditions. Generally speaking, spring to early summer, seedling in the vigorous growth period, the south much rain, water three or four times as long as can be? The north is drought, eight to seven. Seeding seedlings, cutting seedlings need water more often. 

　　初夏，南方是阴雨季节，要注意排水。夏季北方常逢雨季，可不浇水。南方则不同，如果高温又干旱，必须增加浇水次数。秋季，虽然南北方雨量不同，但为了让苗木组织充实和木质化，准备越冬，一般不浇水。冬季，南方不浇水，北方则要在土地冰冻前灌一次冻水，以利于苗木越冬。

Early summer, the south is a rainy season, should pay attention to drainage. Summer in the north often meet the rainy season, water. The south is different, if high temperature and drought, water number must be increased. Autumn, although the north and the rainfall is different, but in order to enrich the organization of nursery stock and lignification, for winter, is generally not watering. Winter, the south is not water, the north is to infuse a frozen before land frozen water, to facilitate seedling winter. 

　　不同土壤条件下的浇水注意事项

Under the condition of different soil water matters needing attention 

　　黏重土壤保水力强，浇水量应适当减少;砂壤保水力差，浇水量应适当增加。

Strong heavy clay soil water retention, water quantity should be appropriate to reduce; Sand soil water retention is poor, water quantity should be appropriately increased. 

　　不同树种的浇水注意事项

The water of different tree species 

　　不同树种对水的要求各不相同，幼苗期差别并不太大，一般都需要有足够的水分。随着苗龄的增长，差别越来越明显。对于一些耐旱树种，如臭椿、刺槐、丁香等更应注意，水多时要立即排水。对于一般树种则要经常保持湿润状态，结合地下水位和降雨情况，确定适宜的浇水量。

Each are not identical, to the requirement of water in different tree species seedlings period difference is not too big, generally need to have enough water. As the growth of the age of seedling, the difference is more and more obvious. For some drought tolerant tree species, such as the tree of heaven, acacia, clove, etc, should be paid attention to more volunteer to immediately drainage water. For general tree species are often moist condition, the combination of underground water level and rainfall condition, to determine the appropriate amount of water.