Evaluation of fertigation technique for phosphorus application of maize in the semi-arid region of Northeast China

Qian Li, Chen Xu, Caixia Yin, Lili Kong, Yubo Qin, Yunpeng Hou, Hongjun Wang and Lanpo Zhao
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Qian Li: Department of Resources and Environment, Jilin Agricultural University, Changchun, P.R. China
Chen Xu: Department of Agronomy, Jilin Agricultural University, Changchun, P.R. China
Caixia Yin: Institute of Agricultural Resources and Environment Research, Jilin Academy of Agricultural Sciences, Changchun, P.R. China
Lili Kong: Institute of Agricultural Resources and Environment Research, Jilin Academy of Agricultural Sciences, Changchun, P.R. China
Yubo Qin: Institute of Agricultural Resources and Environment Research, Jilin Academy of Agricultural Sciences, Changchun, P.R. China
Yunpeng Hou: Institute of Agricultural Resources and Environment Research, Jilin Academy of Agricultural Sciences, Changchun, P.R. China
Hongjun Wang: Institute of Agricultural Resources and Environment Research, Jilin Academy of Agricultural Sciences, Changchun, P.R. China
Lanpo Zhao: Department of Resources and Environment, Jilin Agricultural University, Changchun, P.R. China

Plant, Soil and Environment, 2019, vol. 65, issue 8, 401-407

Abstract: To determine the best phosphorus (P) fertilizer management strategy in chernozem soil in the semi-arid region of Northeast China, a field experiment under film mulched drip irrigation was conducted for two consecutive years. Five P application methods were tested, including no P fertilizer applied (P0); P fertilizer one-time basal application (P1); one fertigation one time (P2); fertigation twice (P3) and fertigation four times (P4). The shoot dry matter weight, phosphorus accumulation, yield and POlsen in soil were measured regularly during the maize growing season. The results demonstrated that P fertilizer application methods imposed significant effects on dry shoot matter, the apparent P loss, P fertilizer use efficiency and yield of maize (P < 0.05). The yield, P agrinomic efficiency and P recovery efficiency of P4 treatment were significantly higher than P1 treatment by 4.2, 39.7, and 66.4% across two year. In addition, P4 treatment significantly enhanced the shoot dry matter weight after V12 stage, post-silking P uptake and reduced the apparent P loss. In conclusion, P fertigation and a rational frequency (e.g., fertigation four times) enable to keep the maximum grain yield, the shoot dry matter, and recovery efficiency of P fertilizer (66.4%) though changing agronomic methods for efficient acquisition of P toward a sustainable and productive agricultural fertigation system.

Keywords: phosphorus management; fertigation frequency; maize production; soil P balance; irrigated agriculture (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpse:v:65:y:2019:i:8:id:287-2019-pse

DOI: 10.17221/287/2019-PSE

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