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近些年来在“农业学大寨”的号召下,利用滨海涂地种植柑桔得到了迅速发展。目前已有成千上万亩桔园分布在东海沿岸,有数千亩桔园已经投产,并获得了较好的收成。但是,随着柑桔树龄的增长和结果量的增加,有相当数量的桔园发生了叶片失绿黄化现象,从而严重地影响着柑桔的生长和产量的提高。为此,我们对滨海桔园所发生的叶片失绿黄化现象作了初步的调查和试验研究工作,这里谈谈我们粗浅的看法,供生产上参考。
In recent years, under the guidance of “Agriculture Studies in Dazhai”, the rapid development has been made in the utilization of coastal cultivation of citrus. At present, thousands of acres of orange orchard have been distributed along the coast of the East China Sea. Several thousand mu of orange groves have been put into operation and better harvests have been obtained. However, with the increase of citrus tree age and the increase of the amount of fruit, a considerable number of orange orchards occurred the phenomenon of leaf chlorosis, which seriously affected the growth of citrus and the increase of yield. For this reason, we conducted a preliminary investigation and experimental research on the phenomenon of greening and degeneration of leaves occurring in the coastal orange orchard. Here we talk about our superficial opinions for production reference.