The Study on the Abundance and Deficiency Indices of Phosphorus andPotassium of Rainfed Potato in North Yinshan Area of Inner Mongolia
ZHANG Zi-yi, ZHENG Hai-chun, GAO Fan-shen, FAN Ming-shou
ACTA AGRICULTURAE BOREALI-SINICA . 2011, (1): 177 -180 .  DOI: 10.7668/hbnxb.2011.01.036