different ways to irrigate when seedling cultivation
First, after sowing seeding to try to avoid surface soil dry, especially in the northern region, some small seeds after planting soil cover shallow, vulnerable to spring drought hazards. Through reasonable irrigation to keep the bed wet, to prevent water loss seedlings, but also adjust the surface temperature, to prevent sunburn. Generally require more irrigation times, less water per irrigation.
Second, the cuttings, layering, buried seedlings of these seedlings take root, germination requires a larger amount of water, especially in the beginning of the leaf but not yet fully rooted (ie false demand) stage, leaf transpiration, soil moisture supply Less, once the water will cause plant death, timely irrigation is the key. In the north, the climate should pay attention to the dry season. Irrigation may be appropriate, but the water should be fine, slow, so as not to move the momentum of water seedlings (in particular cuttings).
Third, the ramet seedlings, transplant seedlings of these seedlings due to root injury in the planting, seedling internal water supply imbalance, we must strengthen the water supply. In the ramets and after transplantation should be continuous irrigation 3 to 4 times, irrigation volume should be larger, the interval can not be too long.
Fourth, grafted seedlings grafted seedlings of water demand is not too large, as long as the rootstock can guarantee the normal life activities can be. Water can not be too much, especially the interface parts can not water, otherwise it will wounds rot. Dry weather must also pay attention to irrigation.
Five, unless the seedlings in dry season only need irrigation. If the water is too much, but also to reduce the resistance of seedlings, affecting growth and development.