Tsolmon, Nyamdavaa, and Friedel K Jürgen. 2017. “Tuber Yield Parameters in Organic Potato Production With Green Manures As Preceding Crop, Catch Crop and With Farmyard Manure”. Mongolian Journal of Agricultural Sciences 17 (1):21-26. https://doi.org/10.5564/mjas.v17i1.722.