多数板栗园的立地条件较差,推广深翻扩穴、爆破松土、穴贮肥水、覆膜、覆草等方法比较费工、费力。探讨局部高营养改土促根的措施,对加速山区栗园的土壤改良将提供更加简便的方法。为此,1998年应用本所“果树改土养根技术研究”课题组研制的营养调控球,进行了挖穴埋施试验。试 Most chestnut garden site conditions are poor, to promote the deep turning hole, blasting loose soil, storage of fertilizer, film, covered grass and other methods more laborious and laborious. To explore the local high nutrition to promote soil improvement measures to speed up the improvement of chestnut soil in the mountains will provide a more convenient way. To this end, in 1998 by the application of “fruit trees to improve soil rearing technology research” task group developed nutritional regulation of the ball, digging burial test. test