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450002
Effect of Application of N, P and K Fertilizers on Yield of Wheat and Corn
in Cinnamon Soil in Henan Province
Sun Ke-gang, Li Bing-qi, Wang Ying, Wang Jiyin, Bi Jianguo
Soil and Fertilizer Institute, Henan Academy of Agricultural Sciences
37.1% 23.1% 7.5% 400kg/ 362 /
54.0% 21.1% 12.7%
431kg/ 397 /
1
2
1 (kg/ )
N P2O5 K2O N P2O5 K2O
1 12 8 8 1 15 6 10
2 0 8 8 2 0 9 10
3 12 0 8 3 15 0 10
4 12 8 0 4 15 6 0
5 CK 0 0 0 5 CK 0 0 0
1 20 30M2 3
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N P K
2
2
400kg/ 362 / 5.7 708 kg/
0.56 5%
372 kg/ 2 349 / 6.8 2
676 kg/ 0.55
37.1% 23.1% 7.5%
1
2 2003
/
kg/ kg/
N P2O5 K2O % 1% 5% /
12 8 8 400 183 84.6 A A 440 78 362 5.7 708 0.56
12 8 0 372 155 71.6 AB A 409 60 349 6.8 676 0.55
12 0 8 325 108 50.0 BC B 358 50 304 6.7 592 0.55
0 8 8 292 75 34.6 C B 321 42 279 7.7 500 0.58
0 0 0 217 - - D C 238 - 238 - 408 0.53
-1
LSD0.05=529.8 LSD0.01=770.6 · N 3.0 P2O5 3.0 K2O 2.2 1.1
3 2003
/
kg/ kg/
N P2O5 K2O % 1% 5% /
15 6 10 431 163 60.7 A A 482 85 397 5.7 530 0.45
15 6 0 382 114 42.5 AB B 428 63 365 6.8 535 0.42
15 0 10 356 88 32.7 B B 399 67 332 5.9 415 0.46
0 6 10 280 12 4.3 C C 313 40 273 7.8 459 0.38
0 0 0 268 - - C C 300 - 300 - 311 0.46
-1
LSD0.05=36.57 LSD0.01=53.19 · N 3.0 P2O5 3.0 K2O 2.2 1.12
461kg/ 397
/ 5.7 2 530kg/ 0.45
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