FERTILISER GUIDELINES FOR THE WINE INDUSTRY

TABLE 20: Chemical composition (%) of inorganic fertilisers.

Product

N P K S Ca Mg Cu Zn Mn B Fe Mo

KCl

50

K 2 SO 4

40 16

Ammonium sulphate 21

24

MAP(33)

11 22

DAP(38)

18 20

Urea(46)

46

LAN(28)

28

1-0-0(40)

40

6

UAN 32

32

AN 21

21

AN 19

19

13

KNO 3

37

Ca(NO 3 ) 2

15

21

Urea phosphate

25 15

Double superphosphate(20) Superphoshate (10.5)

20

10,5

Superphosphate (8.7)

8,7

Calfos

14

1,3 35,5 0,65

6

MgO

45

Micro-element sources CuSO 4 25%

25,0

ZnSO 4 22%

22,0

MnSO 4 31.5% Boric acid 17.3%

31,5

17,3

NaMo 39.5%

39,5

77