氮肥与密度互作对单粒精播花生根系形态、植株性状及产量的影响
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刘俊华, 吴正锋, 沈浦, 于天一, 郑永美, 孙学武, 李林, 陈殿绪, 王才斌, 万书波
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Effects of nitrogen and density interaction on root morphology, plant characteristic and pod yield under single seed precision sowing in peanut
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Jun-Hua LIU, Zheng-Feng WU, Pu SHEN, Tian-Yi YU, Yong-Mei ZHENG, Xue-Wu SUN, Lin LI, Dian-Xu CHEN, Cai-Bin WANG, Shu-Bo WAN
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表4 氮肥和密度互作对花生根干重的影响
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Table 4 Effects of the interaction of nitrogen and density on root dry weight in peanut
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氮肥水平 Nitrogen level | 种植密度 Plant density | 单位面积根干重Root dry weight of unit area (g pot-1) | 单株根干重Root dry weight per plant (g plant-1) | 2018 | 2019 | 2018 | 2019 | | | 花针期 FS | 结荚期 PS | 收获期HS | 花针期 FS | 结荚期 PS | 收获期HS | 花针期 FS | 结荚期 PS | 收获期 HS | 花针期 FS | 结荚期 PS | 收获期 HS | N0 | D1 | 2.09 c | 6.03 ab | 5.69 a | 4.17 c | 3.62 b | 3.45 bc | 2.09 ab | 6.03 a | 5.69 a | 4.17 a | 3.62 bc | 3.45 a | | D2 | 3.24 abc | 8.63 ab | 5.88 a | 5.92 b | 6.78 ab | 4.39 abc | 1.62 bc | 4.32 ab | 2.94 b | 2.96 bcd | 3.39 bc | 2.19 bc | | D3 | 4.54 a | 8.71 ab | 6.19 a | 6.81 ab | 7.33 a | 4.59 ab | 1.51 bc | 2.90 b | 2.06 b | 2.27 d | 2.44 c | 1.53 c | N1 | D1 | 2.50 bc | 5.60 ab | 6.26 a | 3.54 c | 5.88 ab | 2.72 c | 2.50 a | 5.60 a | 6.26 a | 3.54 ab | 5.88 a | 2.72 ab | | D2 | 3.40 abc | 8.95 a | 5.83 a | 6.62 ab | 6.96 a | 4.39 abc | 1.70 bc | 4.48 ab | 2.92 b | 3.31 bc | 3.48 bc | 2.20 bc | | D3 | 3.50 ab | 8.12 ab | 5.11 a | 7.73 a | 7.32 a | 5.89 a | 1.17 c | 2.71 b | 1.70 b | 2.58 cd | 2.44 c | 1.96 bc | N2 | D1 | 2.57 bc | 4.99 b | 6.29 a | 3.43 c | 5.06 ab | 3.08 bc | 2.57 a | 4.99 ab | 6.29 a | 3.43 ab | 5.06 ab | 3.08 ab | | D2 | 2.52 bc | 6.71 ab | 6.25 a | 5.96 b | 6.56 ab | 5.38 a | 1.26 c | 3.35 ab | 3.13 b | 2.98 bcd | 3.28 bc | 2.69 ab | | D3 | 3.55 ab | 8.70 ab | 6.96 a | 6.94 ab | 6.35 ab | 4.47 abc | 1.18 c | 2.90 b | 2.32 b | 2.31 d | 2.12 c | 1.49 c | 氮肥 Nitrogen (N) | | ns | ns | ns | ns | ns | ns | ns | ns | ns | ns | ns | ns | 密度 Density (D) | | ** | ** | ns | ** | * | ** | ** | ** | ** | ** | ** | ** | 氮肥×密度 N×D | | ns | ns | ns | ns | ns | ns | ns | ns | ns | ns | ns | ns |
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