Effects of varied levels of nitrogen (N),phosphorus (P),potassium (K) nutrients on the growth,photosynthetic characteristics and yield in three-year old saplings of C. arabica with the density of 4 500 individuals per hectare were measured.

• 结果表明 ；N的缺乏对小粒咖啡生长、光合特性和产量的影响最大 ；其次为K ；而P的影响相对较小 .