Shi, Lei, Zhong Zheng Liu, Liangyan Yang, and Wangtao Fan. “Effects of Different Fertilization Measures on Corn Yield and Soil Nitrogen Level in Hollow Village On the Loess Plateau”. Bangladesh Journal of Botany 50, no. 5 (November 18, 2021): 729–736. Accessed December 22, 2024. https://banglajol.info/index.php/BJB/article/view/56423.