Table 2.
Impact of foliar spraying of stimulants and chemical and bio fertilization treatments on grain weight per ear,100-grain weight and grain yield of maize.
| Foliar spraying | GW/E | 100-GW | GY | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F1 | F2 | F3 | F4 | F5 | Mean | F1 | F2 | F3 | F4 | F5 | Mean | F1 | F2 | F3 | F4 | F5 | Mean | |||||||||||||
| 2019 season | ||||||||||||||||||||||||||||||
| TW | 206.0b | 122.6ij | 111.0j | 109.9j | 150.0f:h | 139.9d | 37.91ab | 26.81i:k | 24.65jk | 23.58k | 30.55e:i | 28.70b | 8.79a:c | 5.38g:i | 4.88h | 4.83h | 5.64e:h | 5.90c | ||||||||||||
| HA | 185.0c | 175.9cd | 156.1e:g | 150.8f:h | 125.2ij | 158.6c | 34.66b:d | 31.69c:g | 34.14b:e | 30.72d:h | 24.20jk | 31.08a | 6.91c:g | 7.73b:d | 6.36d:h | 6.63d:h | 4.95h | 6.51bc | ||||||||||||
| AA | 133.5hi | 213.6ab | 172.3c:e | 182.7c | 139.5g:i | 168.3b | 24.86jk | 35.23bc | 34.10b:e | 32.72c:f | 29.90f:i | 31.36a | 7.33c:g | 9.39ab | 7.57b:e | 8.02b:d | 5.63f:h | 7.59ab | ||||||||||||
| HA+AA | 159.3d:f | 229.5a | 171.5c:e | 174.8cd | 169.9c:e | 181.0a | 31.84c:g | 40.31a | 28.03g:j | 31.30d:h | 27.70h:j | 31.83a | 7.00c:g | 10.08a | 7.54b:f | 7.18c:g | 6.96c:g | 7.75a | ||||||||||||
| Mean | 170.9B | 185.4A | 152.7C | 154.5C | 146.1C | 32.32A | 33.51A | 30.23B | 29.58BC | 28.09C | 7.51AB | 8.15A | 6.59BC | 6.67BC | 5.80C | |||||||||||||||
| 2020 season | ||||||||||||||||||||||||||||||
| TW | 221.2ab | 118.0jk | 106.8k | 104.7k | 130.2ij | 136.2d | 40.51a | 22.74j | 22.49j | 21.16j | 24.82h:j | 26.34c | 9.72ab | 5.20jk | 4.70k | 4.60k | 5.73ij | 5.99d | ||||||||||||
| HA | 181.7de | 183.0de | 149.6gh | 145.6g:i | 114.1jk | 154.8c | 34.57bc | 32.51c:e | 30.19d:g | 29.30e:g | 22.44j | 29.80b | 7.98de | 8.04de | 6.57gh | 6.41g:i | 5.01jk | 6.80c | ||||||||||||
| AA | 137.7hi | 225.9a | 155.4f:h | 169.7ef | 137.5hi | 165.2b | 23.34ij | 40.43a | 28.05f:h | 32.11c:e | 31.38c:f | 31.06a | 6.05hi | 9.93a | 6.82f:h | 7.46ef | 6.05hi | 7.26b | ||||||||||||
| HA+AA | 155.4f:h | 206.1bc | 189.4cd | 190.0cd | 155.9fg | 179.3a | 29.56d:g | 36.34b | 33.49b:d | 32.58b:e | 27.01g:i | 31.79a | 6.82f:h | 9.06bc | 8.32cd | 8.36cd | 6.86fg | 7.88a | ||||||||||||
| Mean | 174.0A | 183.3A | 150.3B | 152.5B | 134.4C | 32.00A | 33.00A | 28.55B | 28.79B | 26.41C | 7.64A | 8.06A | 6.60B | 6.70B | 5.91C | |||||||||||||||
TW, tap water, HA, humic acid, AA, amino acids, HA + AA, mixture of humic acid + amino acids, F1, 100% NPK, F2, 75% NPK + biofertilizers, F3, 50% NPK + biofertilizers, F4, 25% NPK + biofertilizers, F5, biofertilizers, GW/E is grain weight/ear (g), 100-GW is 100- grain weight (g) and GY is grain yield (Mg ha-1). Means in italic refer to foliage applications, while none italic refer to fertilization treatments. Means followed by different letters in the same direction differ significantly by LSD (p ≤ 0.05).