Agriculture & Biology
nutrient management
76%
long term effects
63%
Oryza sativa
57%
Triticum aestivum
55%
green manures
52%
rice
43%
wheat
42%
animal manures
41%
straw
39%
fertilizers
25%
bulk density
21%
fertilizer application
20%
Sesbania bispinosa
17%
infiltration rate
15%
soil strength
15%
soil biological properties
14%
resistance to penetration
13%
agronomy
13%
soil physical properties
12%
organic carbon
11%
agricultural colleges
11%
water holding capacity
11%
soil
11%
cropping systems
10%
nitrogen fertilizers
9%
soil water
9%
nutrition
8%
physicochemical properties
8%
potassium
8%
phosphorus
8%
India
7%
farms
7%
nutrients
6%
nitrogen
6%
methodology
2%
Earth & Environmental Sciences
long-term effect
70%
green manure
65%
wheat
59%
rice
57%
chemical fertilizer
54%
farm
46%
straw
44%
nutrient
42%
manure
42%
fertilizer application
25%
bulk density
21%
sesbania
18%
soil
18%
agronomy
15%
DTPA
14%
soil strength
13%
management technique
13%
physicochemical property
11%
nutrition
11%
cropping practice
10%
field experiment
9%
potassium
9%
infiltration
9%
penetration
8%
soil moisture
8%
physical property
8%
organic carbon
8%
phosphorus
7%
nitrogen
6%
rate
3%
water
3%
Business & Economics
Manure
100%
Nutrients
80%
Wheat
77%
Soil
57%
Fertilizer
45%
Integrated
38%
Farm
35%
Phosphorus
12%
Physical Properties
11%
Nitrogen
11%
Moisture
10%
Carbon
8%
Management Techniques
8%
Field Experiment
8%
Nutrition
8%
Penetration
8%
Substitute
6%
Water
6%
India
5%
Experiment
4%
Engineering & Materials Science
Manures
92%
Nutrients
82%
Fertilizers
52%
Straw
40%
Farms
40%
Soils
32%
Agronomy
14%
Organic carbon
12%
Soil moisture
11%
Physicochemical properties
10%
Nutrition
10%
Potassium
10%
Phosphorus
9%
Infiltration
9%
Nitrogen
7%
Physical properties
7%
Experiments
5%
Water
4%
Social Sciences
farm
61%
management
31%
agronomy
20%
subversion
15%
experiment
15%
European Community
12%
nutrition
11%
water
10%
India
9%