藜蒿施肥与增产效果

430064
434500
7000
1100
40%
2001
1
2001 2002 9
9
pH7.5 0.45%NH 4 14.9 /P
9.3 /K 32.5 /
2001
7 4
10 NPK
/
\ N P2O5 K2O
1 12 4 0
2 12 4 5
3 12 4 10
4 18 8 0
5 18 8 5
6 18 8 10
7 18 8 15
2002
4
8 NPK
\ N P2O5 K2O
PK 0 10 15
NK 24 0 15
NPK 24 10 15
NPK 24 10 15
60% 40% 2
15

2
2.1
1
NP
N 12P 2 O 5 4
K 2 O 5
317
24.2% 222 /
212
K
2 O 10
32.5% 278
K 2 O 5 10
NP
N 18P 2 O 5 8
K 2 O 5 /
5.6%
K 2 O 10 /
325
19.9% 228 /
208
K 2 O 15
K 2 O 15
10
65 /273 -208
K 2 O 15 /
N 18P 2 O 5 8 K 2 O 10
1959 /
N12P 2 O 5 4 K 2 O10
1734 / 225
13.0% 158
130
N18P 2 O 5 8
1
NPK
/ / 5% 1% / % / /
12-4-0 1309 d D - - - -
12-4-5 1626 c C 317 24.2 222 212
12-4-10 1734 c BC 425 32.5 298 278
18-8-0 1634 c C - - - -
18-8-5 1726 c BC 92 5.6 64 54
18-8-10 1959 ab A 325 19.9 228 208
18-8-15 2068 a A 434 26.5 303 273
1.2 /N46%
0.36 /P 2 O 5 12%
KCl 1.2 /K 2 O60%
0.70 /
NP
16

N 18P 2 O 5 8 K 2 O 15
2.2
(2)
NPK
N 24
469 40.9% 328
265
27.7%
8-9
P 2 O 5 10
437 37.2% 306 276 2
NPK
/ % / /
N /5% 1%
N P N P N P N P
0-10-15
24-0-15
24-10-151615 469 437 40.9 37.2 328 306 265 276
24-10-15
1.2 /
0.4 /N 17%
0.36 / (P 2 O 5
12%)KCl 1.2 / (K 2 O 60%)
0.70 /
1
2 NPK
N18P 2 O 5 8 K 2 O 15
3
4
0.51.0
2003
17