共 25 条
[1]
BERINGER H, 1979, POTASSIUM RES REV TR, P189
[3]
BERNIER B, 1987, 1987 P N AM OX S QUE, P500
[4]
BORDELEAU C, 1986, MAPLE PRODUCERS INFO, P17
[5]
Bould C., 1970, PHYSL TREE CROPS, P223
[6]
CHANDLER ROBERT F., 1941, JOUR AMER SOC AGRON, V33, P859
[7]
CHILDERS NF, 1966, NUTRITION FRUIT CROP
[8]
COTTIGNIES X, 1979, POTASSE AGR
[9]
ERDMANN GG, 1979, USDA NC53 FOR SERV G