长期施用不同剂量氮肥对高粱产量、氮素利用特性和土壤硝态氮含量的影响
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王媛 1,2( ), 王劲松 1, 董二伟 1, 武爱莲 1, 焦晓燕 1,*( )
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Effects of long-term nitrogen fertilization with different levels on sorghum grain yield, nitrogen use characteristics and soil nitrate distribution
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WANG Yuan 1,2( ), WANG Jin-Song 1, DONG Er-Wei 1, WU Ai-Lian 1, JIAO Xiao-Yan 1,*( )
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图1. 不同施氮量下高梁淀粉含量和淀粉产量 不同字母表示同一年度不同处理间差异达0.05显著水平。处理同表3。
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Fig. 1. Content of total starch and starch yield at different nitrogen application rates (mean±SD) Values followed by different letters mean significant differences among treatments in a year at the 0.05 probability level. Treatments are the same as those given in Table 3.
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