我国黄河故道地区以及鲁西北地区的沙滩地果园,由于其特有的土壤和气候条件,果树在生长过程中,经常出现长枝多,短枝少;秋梢长,春梢短;生长时间长,营养积累少;叶片薄,功能差;芽体不充实,病虫害较多,内膛叶片早期脱落等不正常现象。这类果园,看上去树体 Due to its unique soil and climatic conditions, the fruit trees in the old course of the Yellow River and the sandy land in the northwestern part of the country often grow long branches and short branches with a long fall and long shoots due to their unique soil and climatic conditions. Less nutrient accumulation; thin leaves, poor function; bud is not full, pests and diseases more, the early loss of the inner leaf blades and other abnormal phenomena. Orchard, looks like a tree