Agriculture & Biology
nutrient use efficiency
72%
fertilizers
49%
wheat
41%
nutrient management
24%
biofertilizers
24%
organic compounds
23%
organic matter
19%
bio-organic fertilizer
17%
crops
17%
fertilizer requirements
14%
staple crops
13%
soil carbon
13%
carbon sinks
12%
plant growth-promoting rhizobacteria
12%
soil nutrients
10%
food security
10%
animal manures
10%
soil quality
9%
soil fertility
9%
crop yield
9%
pollution
9%
legumes
8%
phosphorus
7%
methodology
5%
soil
5%
Medicine & Life Sciences
Fertilizers
100%
Triticum
77%
Nutrients
54%
Soil
49%
Manure
14%
Environmental Pollution
12%
Fabaceae
11%
Food Supply
11%
Farms
10%
Phosphorus
9%
Carbon
9%
Fertility
8%
Food
6%
Bacteria
6%
Engineering & Materials Science
Fertilizers
81%
Nutrients
80%
Crops
51%
Soils
35%
Biological materials
24%
Productivity
14%
Organic chemicals
13%
Manures
12%
Phosphorus
10%
Bacteria
10%
Farms
8%
Pollution
8%
Carbon
6%
Health
6%