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本试验从1980年晚造到1982年晚造,先后在东成、环城、天堂、河头、集成等5个公社的26个试验点进行,面积共16.61亩。 (一)试验方法试验设喷施0.1％硫酸锰水溶液和不喷施锰液的对照进行对比,每处理3次重复,每小区面积3—4厘。大区对比试验,是在1块条件较均衡的田划为两半,分别喷施0.1％硫酸锰水溶液和不喷施锰液。在水稻分蘖盛期、孕大穗期、灌浆期用喷雾器喷施叶面,每亩每次喷施锰肥液150斤。试区土壤大多数是发育在花岗岩和砂岩风化的冲积物上。据广东省土壤
The experiment was made from the late 1980s to late 1982, and was conducted at 26 pilot stations in 5 communes such as Dongcheng, Huancheng, Paradise, River Head and Integration, covering a total area of 16.61 mu. (A) Test Method Test control sprayed with 0.1% manganese sulfate aqueous solution and do not spray manganese control comparison, each treatment 3 times repeated, each plot area of 3-4%. Regional comparative test is in a more balanced field plan for the two halves were sprayed with 0.1% manganese sulfate aqueous solution and do not spray manganese liquid. In the tillering stage of rice, the big spike of pregnancy, grain filling stage with foliar spray foliar application of 150 kg of manganese fertilizer per acre. Most of the soil in the test area was developed on the weathered alluvial deposits of granite and sandstone. According to the soil of Guangdong Province