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一、缺镁症状镁是叶绿素的重要组成部分,也是酶的活性物质。我所麻怪塘0.59亩桔园,有温州蜜柑和甜橙结果树65株。1983年7—8月正当夏秋果实膨大期,全园柑桔植株老叶叶尖普遍发黄,呈现倒“V”形,严重树叶片发黄脱落,影响树势和产量,其中以甜橙和早熟温州蜜柑老叶落叶最重,落叶率一般达45—65%,个别达80%以上;中熟尾张温州蜜柑落
First, the magnesium deficiency symptoms Magnesium is an important part of chlorophyll, but also enzyme activity. I Maogang 0.59 acres of orange orchards, oranges and oranges in Wenzhou result of 65 trees. From July to August 1983, just when summer and autumn fruits were swollen, the leaf tips of the old leaves of the whole citrus plants were yellowed and showed “V” shape. The serious leaves were yellow and shedding, affecting the tree vigor and yield. Among them, Premature ripe mandarin orange leaves the heaviest leaves deciduous rate of 45-65%, 80% of individual or more;