黄淮海夏玉米一次性施肥技术效应研究
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杨岩, 谭德水, 江丽华, 郭建华, 孙克刚, 徐钰, 石璟, 王梅, 刘兆辉
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The Effects of One-off Fertilization of Summer Maize in Huang-Huai-Hai Region
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Yan YANG, DeShui TAN, LiHua JIANG, JianHua GUO, KeGang SUN, Yu XU, Jing SHI, Mei WANG, ZhaoHui LIU
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| 表4 不同处理对试验期内夏玉米产量及其构成因素的影响 |
| Table 4 Effects of different fertilizer treatments on summer maize yield and it’s component |
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处理
Treatments | 穗粒数
Grains per ear (No.) | 百粒重
100 grain weight (g) | 平均产量
Average grain yield (t·hm-2) | 变异系数
CV | 增产率
Increased rate (%) | | 2015 | 2016 | 2015 | 2016 | 2015 | 2016 | 2015 | 2016 | 2015 | 2016 | | N0PK | 432.03a | 397.22a | 28.89a | 31.42b | 6.51b | 6.09b | 0.29 | 0.27 | - | - | | FP | 506.70a | 438.89a | 30.43a | 34.31a | 8.51a | 8.36a | 0.17 | 0.21 | - | - | | OPT | 496.65a | 455.95a | 29.52a | 34.47a | 9.00a | 9.18a | 0.20 | 0.25 | 5.79 | 9.85 | | CRFA | 505.06a | 440.71a | 30.63a | 33.69ab | 9.18a | 9.00a | 0.19 | 0.21 | 7.83 | 7.99 | | CRFA80%N | 502.31a | 446.63a | 30.20a | 32.84ab | 8.79a | 8.86a | 0.22 | 0.24 | 3.28 | 6.01 | | CRFB80%N | 483.81a | 435.41a | 30.49a | 33.16ab | 8.74a | 8.55a | 0.25 | 0.24 | 2.75 | 2.28 | | CRFC80%N | 465.81a | 441.11a | 28.93a | 32.93ab | 8.14ab | 8.78a | 0.21 | 0.26 | -4.36 | 5.07 |
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