Table 1 Effect of different chemical treatments on the survival rate of sweet corn seedlings.
Position | GO mg kg−1 | NIF mg kg−1 | HK301 | HK320 | ||||
---|---|---|---|---|---|---|---|---|
Number of seedlings | Number of seedlings after spraying | Survival rate [%] | Number of seedlings | Number of seedlings after spraying | Survival rate [%] | |||
Hebei | 0 | 0 | 498 | 498 | 100.00 | 497 | 497 | 100.00 |
0 | 20 | 497 | 497 | 100.00 | 496 | 330 | 66.53* | |
0 | 40 | 498 | 498 | 100.00 | 498 | 32 | 6.43* | |
0 | 80 | 494 | 490 | 99.19 | 495 | 0 | 0.00* | |
0 | 120 | 497 | 471 | 94.77 | 497 | 0 | 0.00* | |
20 | 0 | 496 | 496 | 100.00 | 492 | 492 | 100.00 | |
40 | 0 | 497 | 497 | 100.00 | 495 | 490 | 98.99 | |
80 | 0 | 499 | 492 | 98.60 | 495 | 493 | 99.60 | |
120 | 0 | 494 | 489 | 98.99 | 494 | 488 | 98.79 | |
20 | 20 | 496 | 496 | 100.00 | 496 | 492 | 99.19 | |
40 | 40 | 495 | 495 | 100.00 | 498 | 492 | 98.80 | |
80 | 80 | 498 | 493 | 99.00 | 495 | 445 | 89.90 | |
120 | 120 | 496 | 446 | 89.92* | 498 | 401 | 80.52* | |
Zhejiang | 0 | 0 | 495 | 495 | 100.00 | 497 | 497 | 100.00 |
0 | 20 | 494 | 494 | 100.00 | 494 | 304 | 61.54* | |
0 | 40 | 497 | 495 | 99.60 | 495 | 95 | 19.19* | |
0 | 80 | 496 | 480 | 96.77 | 495 | 0 | 0.00* | |
0 | 120 | 499 | 439 | 87.98* | 494 | 0 | 0.00* | |
20 | 0 | 495 | 495 | 100.00 | 497 | 497 | 100.00 | |
40 | 0 | 492 | 490 | 99.59 | 498 | 490 | 98.39 | |
80 | 0 | 495 | 490 | 98.99 | 493 | 490 | 99.39 | |
120 | 0 | 494 | 490 | 99.19 | 497 | 491 | 98.79 | |
20 | 20 | 497 | 497 | 100.00 | 494 | 492 | 99.60 | |
40 | 40 | 496 | 490 | 98.79 | 496 | 490 | 98.79 | |
80 | 80 | 493 | 480 | 97.36 | 494 | 453 | 91.70 | |
120 | 120 | 496 | 455 | 91.73 | 494 | 404 | 81.78* | |
Hainan | 0 | 0 | 492 | 492 | 100.00 | 492 | 492 | 100.00 |
0 | 20 | 497 | 497 | 100.00 | 497 | 297 | 59.76* | |
0 | 40 | 494 | 484 | 97.98 | 498 | 38 | 7.63* | |
0 | 80 | 497 | 477 | 95.98 | 498 | 0 | 0.00* | |
0 | 120 | 496 | 426 | 85.89* | 495 | 0 | 0.00* | |
20 | 0 | 494 | 494 | 100.00 | 494 | 490 | 99.19 | |
40 | 0 | 491 | 491 | 100.00 | 497 | 493 | 99.20 | |
80 | 0 | 498 | 488 | 97.99 | 496 | 488 | 98.39 | |
120 | 0 | 492 | 472 | 95.93 | 498 | 493 | 99.00 | |
20 | 20 | 491 | 491 | 100.00 | 497 | 490 | 98.59 | |
40 | 40 | 494 | 494 | 100.00 | 495 | 485 | 97.98 | |
80 | 80 | 495 | 475 | 95.96 | 494 | 453 | 91.70 | |
120 | 120 | 497 | 427 | 85.92* | 493 | 403 | 81.74* |