water-fertilizer production function of crops

application of organic fertilizer combined with chemical fertilizer

Different ratio of cake fertilizer and inorganic fertilizer

Nitrogen fertilizer combined with potassium fertilizer

organic fertilizer and chemical fertilizer

organic fertilizer plus inorganic fertilizer

phosphate fertilizer and potassium fertilizer

Addictive food crops

adjusting the crops structure

Agricultural crops

Agriculture of Chinese medicinal crops

agro-crops

Alternation of forest and agricultural crops

alternative crops

American Cereal Crops

area under crops

arrangement of crops

Artificial regeneration with the aid of field crops

bast fiber crops