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我场后门垟大面积桔园中,有十多亩品种以本地早为主的桔园。自定植后十多年来,年年冬季落叶,不仅没有产量,树势也日趋衰弱。经过调查研究,初步认为该片桔园处于山岙中的洼地,其西北方山地形成槽状,致使寒流流速加大,自上而下袭击桔园,并在洼地回流作短暂的停滞,这是引起落叶的主要原因。地下水位高,桔树生长不良,则加深落叶的程度。为了通过科学实验证实这个认识的正确,从而找出防止的方法,我们在1967年至1969年进行了目的在于防止寒风落叶的试验。
My back door 垟 Large orange fields, there are more than ten acres of varieties of early-based orange garden. More than a decade since the planting, annual deciduous winter, not only no yield, the tree is also increasingly weak. After investigation and study, it is preliminarily believed that the piece of orange orchard is in the depression of the mountain ridge, and the groove shape is formed in the mountainous area in the northwest, resulting in the increase of the flow velocity of the cold flow, attacking the orange orchards from top to bottom and temporarily stagnating in the depression Cause the main reason for deciduous. Groundwater level is high, poor growth of orange trees, then deepen the degree of deciduous. In order to confirm the correctness of this understanding through scientific experiments and to find out ways to prevent it, we conducted a test from 1967 to 1969 aimed at preventing cold wind and deciduous leaves.