不同栽培管理条件下夏玉米产量与肥料利用效率的差异解析
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王洪章,刘鹏,贾绪存,李静,任昊,董树亭,张吉旺,赵斌
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Analysis of differences in summer maize yield and fertilizer use efficiency under different cultivation managements
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Hong-Zhang WANG,Peng LIU,Xu-Cun JIA,Jing LI,Hao REN,Shu-Ting DONG,Ji-Wang ZHANG,Bin ZHAO
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表2 各处理的种植密度及肥料运筹
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Table 2 Plant density and application of fertilizer in different treatments
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处理
Treatment | 种植密度
Plant
density
(plant hm-2) | 目标产量
Target yield
(kg hm-2) | 肥料种类
Fertilizer | 用量
Rate
(kg hm-2) | 比例 Percentage | 播种期
Sowing | 大喇叭口期
Bell stage | 开花期
Flowering stage | 乳熟期
Milking stage | | SH | 82500 | 18000 | 有机肥OF | 7500 | 100% | — | — | — | | N | 540 | 30%PU+10%U | 30%U | 20%U | 10%U | | P2O5 | 180 | 100% | — | — | — | | K2O | 360 | 75% | — | 25% | — | | HH | 82500 | 15000 | 有机肥OF | 7500 | 100% | | | | | N | 375 | 30%PU+10%U | 30%U | 20%U | 10%U | | P2O5 | 150 | 100% | — | — | — | | K2O | 300 | 75% | — | 25% | — | | FP | 67500 | — | N | 208.5 | 100% | — | — | — | | P2O5 | 120 | 100% | — | — | — | | K2O | 112.5 | 100% | — | — | — |
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