Response of Vertical Migration and Leaching of Nitrogen in Percolation Water of Paddy Fields under Water-Saving Irrigation and Straw Return Conditions

The use of water-saving irrigation techniques has been encouraged in rice fields in response to irrigation water scarcity. Straw return is an important means of straw reuse. However, the environmental impact of this technology, e.g., nitrogen leaching loss, must be further explored. A two-year (2017–2018) experiment was conducted to investigate the vertical migration and leaching of nitrogen in paddy fields under water-saving and straw return conditions. Treatments included traditional flood irrigation (FI) and two water-saving irrigation regimes: rain-catching and controlled irrigation (RC-CI) and drought planting with straw mulching (DP-SM). RC-CI and DP-SM both significantly decreased the irrigation input compared with FI. RC-CI increased the rice yield by 8.23%~12.26%, while DP-SM decreased it by 8.98%~15.24% compared with FI. NH4+-N was the main form of the nitrogen leaching loss in percolation water, occupying 49.06%~50.97% of TN leaching losses. The NH4+-N and TN concentration showed a decreasing trend from top to bottom in soil water of 0~54 cm depth, while the concentration of NO3−-N presented the opposite behavior. The TN and NH4+-N concentrations in percolation water of RC-CI during most of the rice growth stage were the highest among treatments in both years, and DP-SM showed a trend of decreasing TN and NH4+-N concentrations. The NO3−-N concentrations in percolation water showed a regular pattern of DP-SM > RC-CI > FI during most of the rice growth stage. RC-CI and DP-SM remarkably reduced the amount of N leaching losses compared to FI as a result of the significant decrease of percolation water volumes. The tillering and jointing-booting stages were the two critical periods of N leaching (accounted for 74.85%~86.26% of N leaching losses). Great promotion potential of RC-CI and DP-SM exists in the lower reaches of the Yangtze River, China, and DP-SM needs to be further optimized.

[1]  Junzeng Xu,et al.  Effects of biochar addition on the NEE and soil organic carbon content of paddy fields under water-saving irrigation , 2019, Environmental Science and Pollution Research.

[2]  Yuanyuan Li,et al.  Study on the Law of Nitrogen Transfer and Conversion and Use of Fertilizer Nitrogen in Paddy Fields under Water-Saving Irrigation Mode , 2019, Water.

[3]  S. Peng,et al.  Optimizing nitrogen management to balance rice yield and environmental risk in the Yangtze River’s middle reaches , 2018, Environmental Science and Pollution Research.

[4]  Yubin Dai,et al.  Ammonia volatilization and nitrogen leaching following top-dressing of urea from water-saving irrigated rice field: impact of two-split surge irrigation , 2018, Paddy and Water Environment.

[5]  A. Datta,et al.  Growth, yield and water productivity of selected lowland Thai rice varieties under different cultivation methods and alternate wetting and drying irrigation , 2018, Annals of Applied Biology.

[6]  Xiaoyin Liu,et al.  Effect of straw return on soil respiration and NEE of paddy fields under water-saving irrigation , 2018, PloS one.

[7]  Hongfei Lu,et al.  Canopy Light Utilization and Yield of Rice under Rain-Catching and Controlled Irrigation , 2018, Water.

[8]  Yongjian Sun,et al.  Effects of different water regimes and nitrogen application strategies on grain filling characteristics and grain yield in hybrid rice , 2018 .

[9]  Shiqi Yang,et al.  Improved crop yield and reduced nitrate nitrogen leaching with straw return in a rice-wheat rotation of Ningxia irrigation district , 2018, Scientific Reports.

[10]  Madeeha Kamal,et al.  Assessment of Nutrient Leaching in Flooded Paddy Rice Field Experiment Using Hydrus-1D , 2018, Water.

[11]  Kazuki Saito,et al.  Effects of Alternate Wetting and Drying Irrigation Regime and Nitrogen Fertilizer on Yield and Nitrogen Use Efficiency of Irrigated Rice in the Sahel , 2018, Water.

[12]  Hong-cheng Zhang,et al.  Effects of open-field warming during grain-filling stage on grain quality of two japonica rice cultivars in lower reaches of Yangtze River delta , 2018 .

[13]  X. H. Wu,et al.  Photosynthetic and yield responses of rice (Oryza sativa L.) to different water management strategies in subtropical China , 2018, Photosynthetica.

[14]  G. Shao,et al.  Impact of Alternate Drought and FloodingStress on Water Use, and Nitrogen and PhosphorusLosses in a Paddy Field , 2018 .

[15]  Wenquan Gu,et al.  Evaluation of soil water percolation under different irrigation practices, antecedent moisture and groundwater depths in paddy fields , 2017 .

[16]  J. Šimůnek,et al.  Modeling of Soil Water Regime and Water Balance in a Transplanted Rice Field Experiment with Reduced Irrigation , 2017 .

[17]  D. She,et al.  Effects of Controlled Irrigation and Drainage on Nitrogen and Phosphorus Concentrations in Paddy Water , 2016 .

[18]  Baojun Wang,et al.  Effects of different straw returning modes on greenhouse gas emissions and crop yields in a rice–wheat rotation system , 2016 .

[19]  Junzeng Xu,et al.  Effect of controlled irrigation and drainage on nitrogen leaching losses from paddy fields , 2015, Paddy and Water Environment.

[20]  G. Shao,et al.  Potential of Controlled Irrigation and Drainage for Reducing Nitrogen Emission from Rice Paddies in Southern China , 2015 .

[21]  D. She,et al.  Nitrogen and phosphorus loss and optimal drainage time of paddy field under controlled drainage condition , 2015, Arabian Journal of Geosciences.

[22]  Wenquan Gu,et al.  Field analysis of water and nitrogen fate in lowland paddy fields under different water managements using HYDRUS-1D , 2015 .

[23]  D. She,et al.  Impacts of controlled irrigation and drainage on the yield and physiological attributes of rice , 2015 .

[24]  Yong Li,et al.  Evaluation of nitrogen balance in a direct-seeded-rice field experiment using Hydrus-1D , 2015 .

[25]  Gang Zhang,et al.  Nitrogen and phosphorus leaching losses from intensively managed paddy fields with straw retention , 2014 .

[26]  Dong-Keun Yang,et al.  Rice Photosynthetic Productivity and PSII Photochemistry under Nonflooded Irrigation , 2014, TheScientificWorldJournal.

[27]  Dongguo Shao,et al.  Simulating soil water regime in lowland paddy fields under different water managements using HYDRUS-1D , 2014 .

[28]  Huijing Hou,et al.  Nitrogen Loss from Paddy Field with Different Water and Nitrogen Managements in Taihu Lake Region of China , 2013 .

[29]  C. Cao,et al.  Effects of N Management on Yield and N Uptake of Rice in Central China , 2012 .

[30]  Hui Zhang,et al.  Recovery efficiency and loss of 15N-labelled urea in a rice–soil system in the upper reaches of the Yellow River basin , 2012 .

[31]  Dongguo Shao,et al.  Effects of alternate wetting and drying irrigation on percolation and nitrogen leaching in paddy fields , 2012, Paddy and Water Environment.

[32]  K. Brandt,et al.  Effects of alternating wetting and drying versus continuous flooding on fertilizer nitrogen fate in rice fields in the Mekong Delta, Vietnam , 2012 .

[33]  Huijing Hou,et al.  Nitrogen and phosphorus leaching losses from paddy fields with different water and nitrogen managements , 2011, Paddy and Water Environment.

[34]  Y. Kato,et al.  Radiation use efficiency, N accumulation and biomass production of high-yielding rice in aerobic culture. , 2010 .

[35]  M. Safeeq,et al.  Measurement and modeling of soil water regime in a lowland paddy field showing preferential transport , 2009 .

[36]  Xin-ping Chen,et al.  Reducing environmental risk by improving N management in intensive Chinese agricultural systems , 2009, Proceedings of the National Academy of Sciences.

[37]  Ying-xin Xie,et al.  Nitrogen fate and environmental consequence in paddy soil under rice-wheat rotation in the Taihu lake region, China , 2009, Plant and Soil.

[38]  David Molden,et al.  Adapting to intersectoral transfers in the Zhanghe Irrigation System, China. Part I. In-system storage characteristics , 2008 .

[39]  F. Salvagiotti,et al.  Radiation interception, biomass production and grain yield as affected by the interaction of nitrogen and sulfur fertilization in wheat , 2008 .

[40]  P. Haygarth,et al.  Drying and rewetting effects on soil microbial community composition and nutrient leaching , 2008 .

[41]  Lin-zhang Yang,et al.  Nitrogen Runoff and Leaching Losses During Rice-Wheat Rotations in Taihu Lake Region, China , 2007 .

[42]  B. Bouman,et al.  Nitrogen economy and water productivity of lowland rice under water-saving irrigation , 2005 .

[43]  B. Bouman,et al.  Field water management to save water and increase its productivity in irrigated lowland rice , 2001 .

[44]  W. Horwath,et al.  Rice yield and nitrogen utilization efficiency under alternative straw management practices. , 2000 .

[45]  Zhaoming Chen,et al.  Changes in soil microbial community and organic carbon fractions under short-term straw return in a rice–wheat cropping system , 2017 .

[46]  Junzeng Xu,et al.  Effects of water saving irrigation and controlled release nitrogen fertilizer managements on nitrogen losses from paddy fields , 2013, Paddy and Water Environment.

[47]  B. Lennartz,et al.  Infiltration properties of paddy fields under intermittent irrigation , 2013, Paddy and Water Environment.

[48]  B. Mati,et al.  Improving land and water productivity in basin rice cultivation in Kenya through System of Rice Intensification (SRI) , 2012 .

[49]  Zhu Zhao-liang.  Effect of nitrogen application rate on nitrogen uptake and distribution in rice , 2008 .

[50]  B. Bouman,et al.  Rice and Water , 2007 .

[51]  J. Six,et al.  Efficiency of Fertilizer Nitrogen in Cereal Production: Retrospects and Prospects , 2005 .