Using Sentinel-2 to Track Field-Level Tillage Practices at Regional Scales in Smallholder Systems. - Weiqi Zhou; Preeti Rao; Mangi L. Jat; Balwinder Singh; Shishpal Poonia; Deepak Bijarniya; Manish Kumar; Love Kumar Singh; Urs Schulthess; Rajbir Singh; Meha Jain (Remote. Sens., 2021)