Paraguay (2) Measurement (2) Medición (2) Labor (1) Biomass (1) Origin (1) Weights and measures (1) Trees (1) Time (1) Surveys (1) Seeds (1) Science (1) Rice (1) Research (1) Production (Economic theory) (1) Plants (1) Neck (1) Months (1) Insects (1) Humus (1) Shingles (Disease) (1) Garlic (1) Fuelwood (1) Force and energy (1) Farm manure (1) Consumption (Economics) (1) Chance (1) Bricks (1) Aphids (1) Analysis of variance (1)