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山核桃(Carya cathayensis sargent)是我国特有的干果油料树种。其核仁松脆味甘,除含糖和维生素外,还含粗蛋白7.23％,油48-53％(最高可达69％),营养丰富。山核桃主要分布在我省西北部的天目山区,目前经营水平很低,大多处于半野生状态,产量亦低。随着山区多种经营的发展,提高山核桃经营水平将是一种必然趋势。要做到合理、适时、适地施用矿质肥料,有必要摸清山核桃在生长期间对矿质营养元素的需求规律。目前,对山核桃所含
Carya cathayensis sargent is a unique species of dried fruit oil in our country. Its crisp and crispy kernels contain, in addition to sugars and vitamins, 7.23% crude protein, 48-53% oil (up to 69%), and are nutritious. Hickory is mainly distributed in the northwest of our province Tianmu Mountain, the current operating level is very low, mostly in semi-wild state, the yield is also low. With the development of a variety of management in mountainous area, it is an inevitable trend to improve the management level of pecans. To achieve reasonable, timely and appropriate application of mineral fertilizers, it is necessary to find out the law of demand for mineral nutrients during the growth of Hickory. At present, the pecan contains