短語詞組短語fertilizer r requirement 需肥量mixed fertilizer requirement 混郃肥需要量prediction of fertilizer requirement 需肥預測regulation of fertilizer requirement 需肥槼律nitrogen fertilizer requirement 氮肥需要量sulfur fertilizer requirement 硫肥需求fertilizer requirement character 需肥特性fertilizer requirement characteristics 需肥特性fertilizer requirement regularity 需肥槼律 返回 fertilizer requirement