Probably need more than cow shit and worm shit alone.
Best soil composition for growth is 50% pore space 45% minerals 5% organic matter.
Of that 45% in minerals. 99% of that should be made up of the 6 macronutrients. N,P,K,Ca,Mg,S.
1% makes up everything else. Just some basic knowledge that hopefully guides one in right direction. Good luck.