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结合山东安丘市土壤特点 ,近年来小麦增施过磷酸钙、硫酸锌取得了良好的增产效果。1 小麦施过磷酸钙土壤缺磷 ,根系发育受到限制 ,叶色暗绿无光泽 ,光合能力减弱 ,分蘖少 ,成熟延迟 ,籽粒轻。我市地处鲁中南山区的延伸带 ,岩性复杂 ,多为钙质岩类 ,少为酸性岩类。风化形成的土
Combined with the soil characteristics of Anqiu City in Shandong Province in recent years, wheat increased by superphosphate, zinc sulfate has achieved good yield. 1 wheat phosphate-deficient soil phosphorus, root development is limited, dark green leaf color matte, weakened ability of photosynthesis, less tillers, delayed maturation, light grain. Our city is located in the extension zone of Luzhongnan mountainous area, with complex lithology, mostly calcareous rocks and less acidic rocks. Weathered formed soil