Instruction and study (1) Pruning (1) Anecdotes (1) Balances (Weighing instruments) (1) Price-earnings ratio (1) Mark, German (1) Biomass (1) Wealth (1) Slash (Logging) (1) Scales (Weighing instruments) (1) Proportion (1) Production (Economic theory) (1) Potassium (1) Phosphorus (1) Pension trusts (1) Nitrogen (1) Leaves (1) Fruit-culture (1) Wild foods (1) Food--Composition (1) Castanea (1) Aphorisms and apothegms (1) Addition (1) Management (1) Soils (1) Practice (1) Harvesting (1) Training of (1) Alimentos--Composición (1) Biomasa (1)