聚天门冬氨酸螯合氮肥减量基施对东北春玉米的增效机制
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唐会会,许艳丽,王庆燕,马正波,李光彦,董会,董志强
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Increasing spring maize yield by basic application of PASP chelating nitrogen fertilizer in northeast China
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Hui-Hui TANG,Yan-Li XU,Qing-Yan WANG,Zheng-Bo MA,Guang-Yan LI,Hui DONG,Zhi-Qiang DONG
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表3 CN与PASP-N处理不同施肥量对玉米干物质积累的影响
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Table 3 Effects of CN and PASP-N treatments on maize dry matter accumulation
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处理
Treatment | 施氮量
Nitrogen (kg hm-2) | 植株干物质积累Plant dry matter accumulation (g plant-1) | 收获指数
Harvest index | | 花前Pre-silking | 花后Post-silking | | CK | 0 | 105.2±2.1 cd | 156.6±33.5 c | 0.6±0.1 ab | | CN1 | 112.5 | 138.7±6.2 ab | 191.7±7.3 bc | 0.5±0.0 ab | | CN2 | 225.0 | 152.1±10.8 a | 216.4±11.0 b | 0.6±0.0 ab | | CN3 | 337.5 | 104.1±9.1 d | 316.1±42.8 a | 0.5±0.0 b | | PASP-N1 | 75.0 | 124.2±15.7 b | 206.7±12.1 b | 0.6±0.0 a | | PASP-N2 | 150.0 | 122.4±10.9 bc | 218.1±25.3 b | 0.5±0.0 ab | | PASP-N3 | 225.0 | 132.4±10.9 b | 180.8±27.2 bc | 0.5±0.0 ab |
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