Identifying irrigation and nitrogen best management practices for aerobic rice–maize cropping system for semi-arid tropics using CERES-rice and maize models

Kadiyala, M D M; Jones, James W.; Mylavarapu, Rao; Li, Yuncong; Reddy, M. D.

doi:10.1016/j.agwat.2014.10.019

Cited by 73 publications

(38 citation statements)

References 32 publications

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“…Among them, there are three main strategies: aerobic system, where the plants are rain-fed or sprinkler-watered [5,6,7,8,9]; keep the soil saturated, but with no superficial water [10,11,12]; and intermittent flooding [4,6,13,14,15,16]. However, each of these strategies that have been chosen can potentially decrease yield with less availability of water in critical stages [17] because rice is very sensitive to drought [18,19].…”

Section: Introductionmentioning

confidence: 99%

Determination of the Water Potential Threshold at Which Rice Growth Is Impacted

Santos

Reis

Mazzafera

et al. 2018

Plants

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Rice feeds 50% of the world’s population. Flooding is the most common irrigation system used for growing rice, a practice responsible for a large amount of water loss. Climate changes may affect water availability in irrigated agriculture, and it will be necessary to develop more sustainable irrigation practices. The aim of this work was to determine, in controlled conditions, the threshold when water potential begins to decrease plant growth. Two independent greenhouse experiments were conducted during middle summer and fall, in order to validate the results for high and low evapotranspiration conditions. Rice plants were grown in hydroponics and the water potential was adjusted with polyethylene glycol 6000, varying from −0.04 MPa (control) to −0.19 MPa. Leaf water potential, water use efficiency, leaf area, and root and shoot biomass were evaluated. All assayed parameters decreased as the water potential was decreased. The water potential threshold which starts to negatively affect rice growth was between −0.046 and −0.056 MPa, which are values close to those observed in the field in previous research. The definition of a critical value may help to improve water management in rice cultivation and to maintain productivity.

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Section: Introductionmentioning

confidence: 99%

Determination of the Water Potential Threshold at Which Rice Growth Is Impacted

Santos

Reis

Mazzafera

et al. 2018

Plants

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“…It is considerably lower efficiency compared to 0.5-1.1 kg grain kg water -1 reported in similar standards of yield and N rate ; M.D.M. Kadiyala et al, 2015;. While at fertilized plot, NF had 0.81 WUEin, and it was very similar to which also observed higher yield to aerobic condition.…”

Section: The Water Use Efficiencysupporting

confidence: 52%

“…increases with N-NO3 -availability and it was observed in all irrigation regime used, although the severity NF was worst. The N rate dependence to optimum ANUE is widely reported Fageria and Baligar, 2003), and poor ANUE are commonly related to pronounced N loss ; M. D. M. Kadiyala et al, 2015). But for the particular case of NF in this study it can be interpreted as higher N soil surplus and thin relationship between rice crop and to N fertilizer.…”

Section: N Efficiency Indexesmentioning

confidence: 91%

“…However, the penalization in crop productivity is also reported, and depreciation between 0% and 38% leads adoption to proceed with caution and require site-specific adaptation. The lower productivity is attributed to the direct consequence of inadequate water supply to meet ET Singh et al, 2001), to genotypes not adapted to soil water tension around field capacity , or the indirect influence of irrigation on the lower availability of nitrogen in the soil Kadiyala et al, 2015;.…”

Section: Introductionmentioning

confidence: 99%

“…Some alternative irrigation strategies for rice production in tropical regions include: a) aerobic rice in which fields are not flooded and soil is kept unsaturated throughout most of the season, usually being rain fed or sprinkler-irrigated ; M. D. M. Kadiyala et al, 2015;; b) alternate wetting and drying, in which the crop is subjected to intermittent periods of flooding and drying (Awio et al, 2015;; de Vries et al, 2010; Dong et al, 2012); and c) saturated soil systems where soil pores are kept saturated, but without ponding water . All these strategies resulted in increased water use efficiency (WUE), but yields were often impaired.…”

Section: Introductionmentioning

confidence: 99%

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Rice performance, water and nitrogen efficiency in different irrigation regimes in tropical lowland

Reis¹

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Optimization of irrigation and fertilization of drip‐irrigated corn in the chernozem area of north‐east China based on the CERES‐Maize model

Wang

Gong

et al. 2020

Irrigation and Drainage

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To improve water and nitrogen utilization efficiency, and reduce nitrogen leaching in the chernozem area of northeast China, field trial data and the CERES-Maize model were used to optimize irrigation and fertilization management of drip-irrigated corn. In this study field trial data for drip-irrigated corn from 2014 and 2015 were used to calibrate and validate the CERES-Maize model. Results show that yield and nitrogen leaching declined with decrease in the nitrogen fertilizer amount applied. Compared with the traditional nitrogen fertilizer amount applied in the study area (330 kg ha‾¹), yield was decreased with nitrogen fertilizer amounts of ≤170 kg ha‾¹, and nitrogen leaching was decreased with nitrogen fertilizer amounts of ≤240 kg ha‾¹. Yield was decreased in the absence of or reduced topdressing at the jointing stage, and nitrogen leaching was increased by topdressing at the jointing stage. Based on the results of simulations, it is suggested that drip-irrigated corn in the chernozem area should be irrigated three or four times during the entire growth period. A total nitrogen fertilizer amount of 240 or 230 kg ha‾¹, and topdressing ratios at the jointing, tasseling and grain-filling stages of 2/5-0-3/5 or 1/3-1/3-1/3 were recommended. Eight optimal irrigation and fertilization schedules were identified.

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Identifying irrigation and nitrogen best management practices for aerobic rice–maize cropping system for semi-arid tropics using CERES-rice and maize models

Abstract: 2016-11-02T23:50:20

Cited by 73 publications

References 32 publications

Determination of the Water Potential Threshold at Which Rice Growth Is Impacted

Determination of the Water Potential Threshold at Which Rice Growth Is Impacted

Rice performance, water and nitrogen efficiency in different irrigation regimes in tropical lowland

Optimization of irrigation and fertilization of drip‐irrigated corn in the chernozem area of north‐east China based on the CERES‐Maize model

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