Water use and productivity of drip irrigated wheat under variable climatic and soil moisture regimes in North-West, India

Dar, Eajaz Ahmad; Brar, A. S.; Singh, Kulvir

doi:10.1016/j.agee.2017.07.019

Cited by 33 publications

(11 citation statements)

References 24 publications

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“…Water stress induced a decrease in the leaf water status such as leaf relative water content (LRWC), leaf water potential (Lψ), leaf osmotic potential (Lπ), radiation use efficiency (RUE), and yield components and grain yield (Chowdhury et al., 2011) while increased the leaf abscisic acid (ABA) content (El‐Hendawy et al., 2019; Saradadevi et al., 2014). Nevertheless, considering the efficient use of limited water in NCP, the optimal deficit irrigation of winter wheat varies greatly, for instance, 60 mm (Fang et al., 2018), 75 mm (Ali et al., 2019), 135 mm (Wang et al., 2016), 165 mm (Dar et al., 2017) and 263 mm (Li et al., 2019), which there is no uniform optimal irrigation standard yet until now. The results of several investigators also indicated that irrigation frequency had great effect on winter wheat yield and WUE (El‐Hendawy et al., 2008; Pahlavan‐Rad et al., 2011; Tunio et al., 2019).…”

Section: Introductionmentioning

confidence: 99%

Effect of deficit irrigation scheduling and planting pattern on leaf water status and radiation use efficiency of winter wheat

Zhou

Yang

Wang

et al. 2020

J Agronomy Crop Science

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Drought and water shortages have always been great challenges for agricultural production in the North China Plain. To explore appropriate irrigation regimes and planting patterns in this area, a field experiment was conducted for winter wheat (Triticum aestivum L.) from 2014 to 2016. Three irrigation treatments of 50 mm irrigation at growth stage of jointing (GS34) and heading (GS48, W1), 100 mm irrigation at GS34 (W2) and 100 mm irrigation at GS34 and GS48 (W3) combined with uniform (U), double-double (DD) and furrow-ridge (F) planting patterns were designed. The tillers number, leaf water status, spike characteristics and radiation use efficiency (RUE) were measured. Results showed that compared with W2, W3 significantly reduced leaf abscisic acid (ABA) content and increased tillers number, spikelets spike −1 , yield components and RUE, while W1 produced more tillers number, leaf relative water content (LRWC) and water potential (Lψ) only in the late growth stage, yield components and RUE. The DD significantly increased tillers number, LRWC, Lψ, leaf osmotic potential, spike length, spikes m −2 , grains spike −1 and RUE, and reduced the ABA content compared with U. Considering the serious water shortage in the North China Plain, 50 mm irrigation at jointing and heading stages combined with DD is a worthy cultivation measure for sustainable agriculture at water-deficit condition.

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Section: Introductionmentioning

confidence: 99%

Effect of deficit irrigation scheduling and planting pattern on leaf water status and radiation use efficiency of winter wheat

Zhou

Yang

Wang

et al. 2020

J Agronomy Crop Science

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“…This means that treatments which received more irrigation water experienced lesser water stress compared with treatments receiving lesser irrigation. As a result, the SCY was statistically better under 80% ETc and 100% ETc treatments having a high IWA compared with 60% ETc and resulted in higher BWP (Sun et al, 2006;Dar et al, 2017). When averaged over the years, a linear relationship between ETa and SCY was observed, with R 2 value of 0.723 at Abohar and 0.983 for Faridkot and R 2 of 0.936 (Figure 4C) and R 2 of 0.891 when averaged over the locations and years.…”

Section: Actual Crop Evapotranspirationmentioning

confidence: 99%

Sub-surface drip fertigation improves seed cotton yield and monetary returns

Singh

et al. 2022

Front. Plant Sci.

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Surface flood (SF) method is used to irrigate cotton in India, which results in huge wastage of water besides leaching of nutrients. This necessitates the adoption of efficient management strategies to save scarce water without compromising the yield. Therefore, a 2-year field investigation was conducted under two climatic regimes (Faridkot and Abohar) to study the effect of sub-surface drip fertigation (SSDF) on seed cotton yield (SCY), water productivity, nitrogen use efficiency (NUE), and economic parameters in comparison with SF and surface drip fertigation (SDF). The field experiment had a total of eight treatments arranged in a randomized complete block design. Three levels of sub-surface drip irrigation [(SSDI); i.e., 60%, 80%, and 100% of crop evapotranspiration (ETc)] and two N fertigation levels [100% recommended dose of nitrogen (RDN; i.e., 112.5 kg N ha-1) and 75% RDN] made up six treatments, while SF (Control 1) and SDF at 80% ETc (Control 2), both with 100% of RDN, served as the controls. Among irrigation regimes, the SSDI levels of 80% ETc and 100% ETc recorded 18.7% (3,240 kg ha-1) and 21.1% (3,305 kg ha-1) higher SCY compared with SF (2,728 kg ha-1). Water use efficiency under SF (57.0%) was reduced by 34.2%, 40.8%, and 38.2% compared with SSDI’s 60 (76.5%), 80 (80.3%), and 100% ETc (78.8%), respectively. Among fertigation levels, NUE was higher by 19.2% under 75% (34.1 kg SCY kg-1 N) over 100% RDN (28.6 kg SCY kg-1 N), but later it also registered 11.9% higher SCY, indicating such to be optimum for better productivity. SSDF at 80% ETc along with 112.5 kg N ha-1 recorded 26.6% better SCY (3455 kg ha-1) and 18.5% higher NUE (30.7 kg SCY kg-1 N) over SF. These findings demonstrate that the application of SSDF could save irrigation water, enhance SCY, and improve the farmers’ returns compared with SF. Therefore, in northwestern India, SSDF at 80% ETc along with 112.5 kg N ha-1 could be a novel water-savvy concept which would be immensely helpful in enhancing cotton productivity.

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“…Advanced irrigation techniques are essential in order to achieve efficient irrigation management, and an optimal agriculture management system will ensure productivity, and environmental and economic viability [7][8][9][10]. Most techniques, such as regulated deficit irrigation [11], automated drip fertigation [10,[12][13] and precision irrigation systems offer the opportunity to conserve irrigation water, improve fruit quality, increasing crop yield and decreasing costs while contributing to environmental sustainability [14][15].…”

Section: Introductionmentioning

confidence: 99%

Drip Irrigation Detection for Power Outage-Prone Areas with Internet-of-Things Smart Fertigation Managemant System

Dahnill¹,

Hood²,

Adam³

et al. 2021

IJACSA

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In drip irrigation agriculture or fertigation technique, sufficient amount of water and nutrients are crucial for a plant's growth and development. An electronic timer is usually used to control the plant watering automatically and the scheduling is set according to different levels of plant growth. The timer has to be adjusted frequently since the required amount of water is different according to the growth stages. In power outage-prone regions, the problem with scheduled irrigation using timer becomes worsen since the watering schedule is disrupted by occasional black-outs, leading to an insufficient supply of water and nutrients, which leads to poor crop yields. Typical solution for such problems is by hiring field works to monitor the functionality of the automated system, plant health, and to re-adjust the timer once a power outage occurs. However, this solution is ineffective, time-consuming, and acquires high overhead costs. This paper proposes a systematic irrigation method using the internet-of-things (IoT) framework in order to improve the monitoring of plant growth and consequently improves the efficiency of the workflow. This systematic fertigation monitoring system consists of power outage alerts, and on-line notifications of plant irrigation, pesticide delivery, and polybag cleaning schedule. As a result, by using the proposed system, higher efficiency in farming management is achieved, with a 40% reduction in manpower, as compared to a typical fertigation-based farming system. This system demonstrates greater control over irrigation scheduling, plant growth, recording of pesticide scheduling automatically, and polybag cleaning, all of which will improve crop yields significantly.

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Water use and productivity of drip irrigated wheat under variable climatic and soil moisture regimes in North-West, India

Cited by 33 publications

References 24 publications

Effect of deficit irrigation scheduling and planting pattern on leaf water status and radiation use efficiency of winter wheat

Effect of deficit irrigation scheduling and planting pattern on leaf water status and radiation use efficiency of winter wheat

Sub-surface drip fertigation improves seed cotton yield and monetary returns

Drip Irrigation Detection for Power Outage-Prone Areas with Internet-of-Things Smart Fertigation Managemant System

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