Only the balanced supply of N, P and K could make the grape yield, quality and benefit best.
氮磷钾平衡施用才能使葡萄产量最高、品质最佳、效益较好；
The changes of amino acids in grape wine during wine brewing covered N compounds change in brewing, N compounds change in half-anaerobic aging, and N compounds change in half-aerobic aging.
酿造过程中葡萄酒氨基酸的变化包括：酿造过程中含N 化合物的变化、半厌氧老熟过程中含N化合物的变化和半需氧老熟过程中含N化合物的变化。
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