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- [6] Spatial and temporal variability of soil nutrients in the black soil area of northeast China JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT, 2013, 11 (02): : 1386 - 1389
- [10] Study on the Differences of Village-Level Spatial Variability of Agricultural Soil Available K in the Typical Black Soil Regions of Northeast China COMPUTER AND COMPUTING TECHNOLOGIES IN AGRICULTURE IV, PT 2, 2011, 345 : 674 - 681