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奥普尔有机腐殖酸液肥对油菜的应用效果陈阳（福建省农业优良品种开发公司３５０００３）沈春生周通（福建农业大学）奥普尔有机腐殖酸活性液肥（简称奥普尔）是美国科学家根据有机矿化原理和平衡施肥学说研究而成的高科技生物工程产品。它含有氮、磷、钾、镁、硫、钙和多...
Application Effect of Opal Organic Humic Acid Liquid Fertilizer on Rape Chen Yang (Fujian Agricultural Superior Variety Development Company 350003) Shen Chunsheng Zhou Tong (Fujian Agricultural University) Opal organic humic acid active liquid fertilizer (abbreviated as Opal) Organic mineralization theory and balance of fertilization theory from the high-tech bio-engineering products. It contains nitrogen, phosphorus, potassium, magnesium, sulfur, calcium and more ...