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近几年来,三明市各县(区)的山地温州蜜柑普遍出现缺镁现象,严重的秋冬大量落叶,影响树势和产量。为探讨施用硫酸镁矫治温州蜜柑缺镁的适宜方法,我们于1984～1985年进行叶面喷施和土壤施用硫酸镁的测试研究,已获初步结果,简报如下: 一、试验材料和方法选用本所六、七年生枳壳砧温州蜜柑,一九八四年测试42株,一九八五年续测75株。使用浙江省温州市长征化工厂所产的含MgSO_4·7H_2O≥99.5%的硫酸镁。 1、叶面喷施:六、七月间两次喷施2%、4%硫酸镁与清水对照,共三个组。一九
In recent years, all counties in Sanming City (area) mountain mandarin orange generally appear magnesium deficiency phenomenon, a large number of deciduous autumn and winter, affecting tree vigor and yield. In order to explore the suitable method of applying magnesium sulfate to magnesium deficiency in Satsuma mandarin, we conducted the test of foliar spray and soil application of magnesium sulfate from 1984 to 1985 and obtained the preliminary results. The briefing is as follows: First, the materials and methods of test Sixth, seven year old Citrus aurantium orange mandarin, 42 tested in 1984, 75 in 1985 continued test. The use of Changzhou, Wenzhou City, Zhejiang Chemical Plant produced containing MgSO_4 · 7H_2O ≥ 99.5% of the magnesium sulfate. 1, foliar spray: spraying twice in June and July, 4% magnesium sulfate and water control, a total of three groups. One nine