摘要
【目的】探讨不同肥料对作物养分吸收及农田氮磷流失的影响。【方法】利用水稻Oryza sativa-白菜Brassica pekinensis轮作田间小区试验,设置不施肥(ck)、纯化肥(FP)、半替代有机肥(50%有机肥替代,CM)、炭基肥(CC)4个处理,研究不同处理下水稻和白菜产量,作物氮磷吸收量和氮磷径流损失量的变化。【结果】与ck相比,施肥条件下水稻产量显著增加了33.5%~42.5%(P<0.05),白菜产量显著增加了26.0%~31.8%(P<0.05),水稻氮吸收量显著提高了41.9%~57.4%(P<0.05),磷吸收量显著提高了22.8%~41.7%(P<0.05),但3种施肥间没有显著差异。与ck相比,3种施肥条件下白菜氮吸收量提高了33.8%~53.6%,CM处理显著高于其他(P<0.05),磷吸收量提高了163.5%~267.8%,增幅从大到小依次为FP、CM、CC、ck,不同处理间差异显著(P<0.05)。稻季3种施肥处理的氮磷径流流失量为13.49~15.32和2.19~2.61 kg·hm^(-2),径流率为3.5%~4.2%和2.0%~2.4%,菜季氮磷流失量为6.33~6.82和0.35~0.44 kg·hm^(-2),径流率为1.3%~1.6%和0.1%~0.4%,不同施肥处理间差异不显著(P>0.05)。【结论】相同养分当量情况下,纯化肥、半替代有机肥、炭基肥对稻菜种植模式氮磷养分吸收及径流流失无影响。图3表4参25。
[Obejective]This study aims to explore the effect of different fertilization on nitrogen and phosphorus content in farmland in Xianju County,Zhejiang Province.[Method]A rice/Chinese cabbage rotation experiment was conducted to study the change of four fertilization treatments to crop yield,fertilizer absorption,runoff-driven N and P loss.The four treatments were no fertilizer application(ck),pure chemical fertilizer application(FP),50% organic fertilizer replacement(CM)and carbon-based fertilizer application(CC).[Result]Compared with ck,the yield of rice and Chinese cabbage under three fertilization increased significantly by 33.5%-42.5% and 26.0%-31.8%,respectively.But there was no significant difference among three fertilizer treatments.Compared with ck,nitrogen absorption in Chinese cabbage increased by33.8%-53.6%,whereas those of CM treatment were significant higher than others.Phosphorus absorption increased by 163.5%-267.8%,and the increase between different treatments was CM>FP>CC>ck.However,there was no significant difference among each treatment(P<0.05).For rice,runoff volume of nitrogen and phosphorus under three fertilization treatments was 13.49-15.32,2.19-2.61 kg·hm^(-2),and runoff rate was3.5%-4.2%,2.0%-2.4%,respectively.For Chinese cabbage,nitrogen and phosphorus loss was 6.33-6.82,and 0.35-0.44 kg·hm^(-2),runoff rate was 1.3%-1.6%,0.1%-0.4%,respectively.However,there was no significant difference among three fertilization treatments.While maintaining the same nutrient equivalent.There was no significant difference betweenpure chemical fertilizer application,50%organic fertilizer replacement and carbon-based fertilizer application.[Ch,3 fig.4 tab.25 ref.].
作者
张崑
徐坚
鲁长根
邵建均
蔡广越
张艳
吴家森
ZHANG Kun;XU Jian;LU Changgen;SHAO Jianjun;CAI Guangyue;ZHANG Yan;WU Jiasen(College of Environmental and Resource Sciences,Zhejiang A&F University,Hangzhou 311300,Zhejiang,China;Bureau of Agriculture and Rural Affairs of Xianju,Xianju 317300,Zhejiang,China;Rural Energy and Enviornmental Agency of Zhejiang,Hangzhou 310012,Zhejiang,China)
出处
《浙江农林大学学报》
CAS
CSCD
北大核心
2021年第4期784-791,共8页
Journal of Zhejiang A&F University
基金
浙江省重点研发计划项目(2019C03121)
浙江省科技厅公益项目资助(LGF18D010003)。
关键词
稻-菜种植模式
氮
磷
吸收
径流
rice-vegetable rotation system
nitrogen
phosphorus
absorption
runoff water
