在寒害威胁较大的柑桔分布北缘地区,采用矮干高培土这一措施,具有减轻寒害,并能迅速恢复生产的较好的作用。我们去年已有报道(请参阅本刊1980年第4期第25面)。目前为了推广这一有效措施,特就有关问题进一步作些阐述,供参考。 柑桔矮干高培土的防寒方法,是由一般的培土壅蔸逐步试验总结出来的。它具有以下三项改革内容: In the northern edge of citrus distribution where the threat of chilling injury is greater, adopting the measures of short dry and high earth-polluted soil has a good effect of relieving cold damage and rapidly recovering production. We reported last year (see Issue 25, 1980, No. 25). At present, in order to promote this effective measure, we will elaborate on the relevant issues for reference. Cold-dried citrus dwarf high-dry soil method is by the general soil test 总 总 gradually summed up. It has the following three reform elements: