不同连作年限烟田土壤酶活性及养分含量变化陈继峰,孙会,夏阳,蔡凯旋,刘洪源,赵松辉,李远远,郑亚楠,郭瑞亮Journal of Henan Agricultural Sciences(2016)引用 5|浏览18关键词flue-cured tobacco,continuous cropping,soil nutrients,enzyme activity,Henan provinceAI 理解论文溯源树样例生成溯源树,研究论文发展脉络Chat Paper正在生成论文摘要