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大扁杏为仁用杏,是适应性强、经济价值高的木本油料树种。其杏仁营养丰富,用途广泛,为我国外贸内销的特种商品,在国际市场上享有较高的声誉,出口一吨大扁杏仁可换取小麦67吨,换汇率很高。所以,发展大扁杏对促进山区经济发展和支援国家四化建设都有重要意义。但目前就全国来说,大扁杏单位面积产量很低,一般15年生以上的成龄树亩产杏仁20斤左右,最高也只50斤。为了改变大扁杏低产的落后状况,参照国内外果树生产先进经验,我们于1979年～1982年进行了大扁杏密植早期丰产试验研究,现报告如下:
Apricot apricot for apricot, is adaptable, high economic value of woody oil tree species. Its almond nutrition is rich in variety of uses. It is a special commodity for domestic trade in China and enjoys a high reputation in the international market. It exports 67 tons of wheat in one ton of large flat almonds for exchange of high exchange rates. Therefore, the development of the big plain apricot is of great significance to promoting the economic development of the mountainous areas and supporting the building of the four modernizations of the country. However, at present, on the whole country, the yield per unit area of Daixing apricot is very low. Generally, about 20 kilos of almonds are produced per annum of mature trees aged over 15 years and the maximum is only 50 kilos. In order to change the backwardness of Daping apricot low yield, with reference to the advanced experience of fruit tree production at home and abroad, we conducted the early bumper yield test study of Daping apricot close planting from 1979 to 1982, the report is as follows: