大樱桃低产的原因 苗木质量低劣，定植过深；建园时所购苗木一级苗较少，多为弱苗、小苗、病苗；定植时又将苗木栽得过深，将嫁接口埋人土中，造成缓苗慢、生长发育不良、适龄不结果、产量低、寿命短。　　旱、涝、风害 大樱桃根系浅，多集中在 20～ 40厘米的土层中，既不抗旱 The reasons for the low yield of cherry seedlings poor quality, too deep planting; seedlings purchased in the park when the purchase of a less seedling, mostly weak seedlings, seedlings, disease seedlings; planted seedlings and planted too deep, the graft buried Soil, resulting in slowly slow growth, poor growth and development, age no result, low yield, short life expectancy. Drought, waterlogging, wind damage Large cherry root shallow, mostly concentrated in the soil of 20 to 40 cm, neither drought