Agriculture & Biology
animal manures
7%
Bhutan
100%
bunds
12%
crops
4%
cultivars
39%
economics
5%
farm size
9%
farmers
10%
farming systems
12%
farms
46%
genotype
4%
grain yield
36%
harvest index
8%
highlands
63%
household consumption
12%
livestock
6%
minerals
52%
nitrogen
40%
nitrogen fertilizers
7%
nutrient use efficiency
8%
nutrients
4%
Oryza sativa
6%
rice
46%
small farms
9%
socioeconomic factors
10%
soil organic matter
7%
soil properties
7%
straw
6%
transplanting (plants)
8%
villages
7%
Earth & Environmental Sciences
consumption
5%
cost
4%
crop
5%
cultivar
87%
dry matter
9%
economics
4%
effect
16%
environmental index
44%
farm
59%
farm size
11%
farming system
16%
fertilizer
6%
genotype
8%
harvest
6%
household
6%
index
3%
livestock
7%
manure
7%
mineral
38%
mixed farming
12%
nitrogen
41%
nutrient
5%
productivity
48%
rate
2%
rice
60%
smallholder
9%
socioeconomic factor
9%
soil organic matter
7%
soil property
6%
straw
7%
trial
6%
village
6%