id	keyword
ahs-12450	plant
ahs-12450	number
ahs-12450	grain
ahs-12450	soybean
ahs-12450	safflower
ahs-12450	intercropping
ahs-12450	yield
ahs-12450	grain number
ahs-12450	nitrogen
ahs-12450	soil
ahs-12450	fertilizer