Table 1.
Crop season (S) | Number of grains | 1000-grain weight | N-leaf concentration | |||
---|---|---|---|---|---|---|
pod−1 | g | g kg−1 | ||||
Post-pasture area | Post-soybean crop area | Post-pasture area | Post-soybean crop area | Post-pasture area | Post-soybean crop area | |
2015/2016 | 2.12 b | 2.24 b | 134.2 a | 126.9 a | 36.9 a | 53.1 c |
2016/2017 | 2.76 a | 2.45 a | 122.5 c | 98.1 c | 31.3 c | 63.6 a |
2017/2018 | 2.07 b | 2.43 a | 126.7 b | 107.2 b | 34.1 b | 58.4 b |
Inoculant dose (I) – doses ha−1 | ||||||
0 | 2.29 | 2.48 | 126.8 | 112.8 | 32.1 | 57.5 |
4 | 2.34 | 2.37 | 128.0 | 111.5 | 33.3 | 57.7 |
8 | 2.28 | 2.30 | 129.9 | 112.3 | 35.3 | 59.0 |
12 | 2.35 | 2.39 | 127.1 | 109.2 | 35.7 | 59.3 |
Y | 2.38ns | 2.5 + 0.04x + 0.003x²R² = 0.97** | 127.3ns | 111.5ns | 32.2 + 0.31x R² = 0.84* | 57.4 + 0.17x R² = 0.93* |
Nitrogen rate (N) – kg ha−1 | ||||||
0 | 2.35 | 2.29 | 132.1 | 114.1 | 27.7 | 57.1 |
25 | 2.30 | 2.47 | 129.5 | 109.8 | 32.1 | 57.8 |
50 | 2.34 | 2.34 | 126.6 | 111.9 | 35.2 | 58.3 |
100 | 2.27 | 2.45 | 123.7 | 109.1 | 41.3 | 60.3 |
Y | 2.31ns | 2.38ns | 13.1 − 0.018x R² = 0.94* | 11.2 − 0.004x R² = 0.60** | 28.2 + 0.13x R² = 0.99* | 57.1 + 0.03x R² = 0.98* |
F | ||||||
S | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 | 0.0000 |
N | 0.5738 | 0.0530 | 0.4420 | 0.2031 | 0.0000 | 0.0001 |
I | 0.4206 | 0.0223 | 0.0003 | 0.0073 | 0.0000 | 0.0000 |
S*N | 0.0614 | 0.1072 | 0.0000 | 0.0863 | 0.0441 | 0.6720 |
S*I | 0.9478 | 0.5431 | 0.5681 | 0.6762 | 0.0978 | 0.4921 |
N*I | 0.5320 | 0.8269 | 0.6150 | 0.1953 | 0.0000 | 0.0000 |
S*N*I | 0.3969 | 0.8973 | 0.4590 | 0.3069 | 0.0269 | 0.8655 |
CV% | 11.4 | 13.1 | 8.1 | 6.8 | 9.4 | 3.8 |
*Significant at 1%, **significant at 5%, ns = not significant. Means of the treatments followed by the same letter do not differ by Tukey’s test at 5% probability a > b (p < 0.05).