东北黑土区农田土壤有机质的空间变异性及适宜样本容量研究

张舜凯, 刘继龙

Spatial variability and suitable sample size of soil organic matter content in black soil region of Northeast China

ZHANG Shun-kai, LIU Ji-long

湖北农业科学 . 2019, (16): 38 -40 . DOI: 10.14088/j.cnki.issn0439-8114.2019.16.009