春季造林技术要点□李亿坤保持苗木水分。试验表明，从起苗到栽植完毕，以及栽后的一段时间内，保持苗木体内的水分平衡，是苗木成活的关键。苗圃地里越冬的苗木，一般失水厉害，因此，在起苗造林前的三五天，要对苗圃地灌一次透水。一来能补充苗木体内的失水，二来苗圃地... Spring afforestation techniques □ Li Yikun to maintain seedling moisture. Experiments show that from the seedlings to the planting is completed, and after transplanting for some time to maintain the water balance in nursery stock is the key to seedling survival. Nursery seedlings overwintering in the field, the general loss of water, therefore, three to five days before the seedling afforestation, nursery irrigation to a watering. One can add seedling body water loss, and secondly nursery to ...