Physics & Astronomy
Botswana
100%
cattle
79%
nutrients
63%
soils
49%
animals
10%
manures
9%
ecosystems
7%
moisture content
5%
particle size distribution
5%
depletion
4%
nitrogen
3%
porosity
3%
water
3%
Agriculture & Biology
Botswana
63%
soil nutrients
48%
cattle
28%
eutrophication
18%
nutrient content
14%
phosphorus
11%
pastoralism
11%
animal wastes
10%
soil amendments
9%
particle size distribution
9%
urban areas
8%
soil
8%
bulk density
7%
animal manures
7%
organic matter
7%
ecosystems
6%
water content
5%
nutrients
4%
nitrogen
4%
animals
3%
water
3%
Medicine & Life Sciences
Botswana
70%
Soil
51%
Nutrients
40%
Cattle
38%
Manure
8%
Ecosystem
5%
Particle Size
5%
Animals
5%
Nitrogen
5%
Water
3%
Engineering & Materials Science
Nutrients
59%
Soils
37%
Animals
10%
Manures
7%
Potassium chloride
7%
Biological materials
6%
Particle size analysis
6%
Ecosystems
5%
Nitrogen
4%
Moisture
4%
Water
2%
Chemical Compounds
Nutrient
51%
Soil
40%
Soil Amendment
10%
Ecosystem
7%
Bulk Density
7%
Organic Matter
6%
Particle Size Distribution
5%
Time
4%
Pore
3%
Nitrogen
3%
pH Value
2%