Effect of irrigation schedules on plant — Water relations, root, grain yield and water productivity of wheat [<i>Triticum aestivum</i> (L.) emend. Flori &amp; Paol] under various crop establishment techniques

Rajanna, G. A.; Dhindwal, A. S.; Nanwal, R. K.

doi:10.1556/0806.44.2016.051

Cited by 15 publications

(14 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…More stable and significantly higher soybean and wheat yields were recorded under adequate irrigation (crops do not subjected to drought spells) during both the study years (2017–18 and 2018–19); grain and biomass yields of soybean and wheat were increased significantly by 4.6–9.8% and 5.2–12.5%, and 24–49% and 12–54%, respectively under adequate irrigation compared to rainfed plot (crops under frequent drought spells) due to better growth and development of soybean and wheat crops observed owing to favorable soil moisture content under full irrigation regimes. In frequent and adequate irrigation applied plots the surface layers remained wet for a longer duration, maintaining favorable conditions during flowering to maturity time resulting in higher water and nutrient uptake 28 , 35 , 36 and finally enhanced yield parameters and yield 37 , 38 compared to limited-irrigated (crops subjected to short period drought spells) or rainfed plots (crops under frequent drought spells). Such enhancements in soybean and wheat yields caused a 10–32% improvement in system productivity.…”

Section: Discussionmentioning

confidence: 99%

Biopolymeric superabsorbent hydrogels enhance crop and water productivity of soybean–wheat system in Indo-Gangetic plains of India

Rajanna

Manna

Singh

et al. 2022

Sci Rep

View full text Add to dashboard Cite

Environmental crises, declining factor productivity, and shrinking natural resource is a threat to global agricultural sustainability. The task is much more daunting in the Indo-Gangetic northern plains of India, where depletion of the underground water table and erratic rains due to the changing climate pose a major challenge to agriculture. To address these challenges a field investigation was carried out during 2016–2018 to test the efficacy of biopolymeric superabsorbent hydrogels namely Pusa Hydrogel (P-hydrogel: a semi-synthetic cellulose derivative-based product) and kaolin derivative of Pusa Hydrogel (K-hydrogel: semi-synthetic cellulose derivative) to assess their effect on crop and water productivity, soil moisture, root dynamics, and economics of soybean (Glycine max L.)–wheat (Triticum aestivum L.) system under three irrigation regimes namely full irrigation, limited irrigation and rainfed. The results revealed that the full irrigation along with P-hydrogel led to enhanced grain yield, biomass yield, and water productivity (WP) of soybean (1.61–10.5%, 2.2–9.5%, and 2.15–21.8%, respectively) and wheat (11.1–18.3%, 12–54% and 11.1–13.1%, respectively) over control plots. Likewise, under water stressed plots of rainfed conditions with P-hydrogel exhibited 52.7 and 20.6% higher system yields (in terms of wheat equivalent yield) over control and other combinations during the respective study years. Whereas the magnitude of increase in system yield under limited irrigation with P-hydrogel was ~ 15.1% and under full irrigation with P-hydrogel was 8.0–19.4%. Plots treated with P-hydrogel retained 3.0–5.0% higher soil moisture compared to no-hydrogel plots, while K-hydrogel treated plots held the lower moisture (4.0–6.0%) than the control. In terms of profitability, full irrigation along with P-hydrogel plots registered 12.97% higher economic returns over control. The results suggested that P-hydrogel (2.5 kg ha−1) reduces runoff water loss in full irrigation applied plots and retained more water, where loss of water is more thus reduces number of irrigations. Hence P-hydrogel with irrigation water is a viable option for sustainable production of soybean-wheat systems in the Indo-Gangetic plains of India and other similar eco-regions of the world.

show abstract

Section: Discussionmentioning

confidence: 99%

Biopolymeric superabsorbent hydrogels enhance crop and water productivity of soybean–wheat system in Indo-Gangetic plains of India

Rajanna

Manna

Singh

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The higher root parameters like volume, length, and dry matter of this variety might be the reason for higher biomass yield under limited irrigation. Higher root density in the upper soil depth (0-15 cm) resulted from a higher moisture regime due to irrigation at IW:CPE{(irrigation water (IW) and cumulative pan evaporation (CPE)} ratio of 0.90 that eliminated water-stress, thus enabling better root growth into deeper layers in wheat [10]. The enzymatic activity and SMBC were also found higher in its rhizosphere.…”

Section: Soil Microbial Activitymentioning

confidence: 99%

“…Root exudates' qualitative and quantitative composition is determined by plant species, cultivar, growth stage, and different environmental factors, such as temperature, pH, soil type, and availability of micro-organisms [8,9]. In wheat, deficit irrigation (three irrigations) enhanced soil respiration, soil dehydrogenase activity, and SMBC by 79, 8.18, and 27.17%, respectively, over the recommended five irrigations [10]; however, such effects are location specific. Water regime is a critical factor in production, and irrigation will also enhance the production in the dry season or under water-stressed conditions as found in a previous investigation on wheat associating between irrigation and productivity [11].…”

Section: Introductionmentioning

confidence: 99%

Microbial Biomass Carbon, Activity of Soil Enzymes, Nutrient Availability, Root Growth, and Total Biomass Production in Wheat Cultivars under Variable Irrigation and Nutrient Management

et al. 2021

View full text Add to dashboard Cite

Intensive mono-cropping without a balanced supply of nutrients and declining water resources are degrading soil health, and as a consequence, agriculture production is becoming unsustainable and causing environmental degradation. The field experiment was conducted during Rabi season to assess the effect of an irrigation schedule, nutrient management, and wheat (Triticum aestivum L.) varieties on soil microbial biomass carbon (SMBC) and soil enzymes activities. Two nutrient levels, recommended rate of chemical fertilizer (RDF) and 50% RDF + 50% recommended dose of nitrogen (RDN) through farmyard manure (FYM) designated as Integrated Nutrient Sources (INS), and three irrigations levels, one irrigation at crown root initiation (CRI), two irrigations at CRI and flowering stages, and five irrigations at all main stages of the crop (CRI, tillering, jointing, flowering, and grain filling) were allocated to main-plots while four varieties of wheat, HD 2967, WR 544, HD 2987, and HD 2932, were allocated to sub-plots. The results revealed that SMBC and activities of dehydrogenase, alkaline phosphatase enzymes, and acid phosphatase were higher under restricted irrigation (irrigation at CRI stage) than other irrigation schedules. SMBC, dehydrogenase, acid phosphatase, and alkaline phosphatase activities were 73.0 µg g soil−1, 86.0 µg TPF g soil−1d−1, 39.6 µg PNP g soil−1 h1, and 81.8 µg PNP g−1 soil h−1, respectively, with the use of INS that was higher than RDF. Root weight and root volume followed a similar pattern. Applying single irrigation at CRI left behind the maximum available nitrogen (166.4 kg ha−1) in soil compared to other irrigation schedules and it was highest (149.31 kg ha−1) with the use of INS. Moreover, total organic carbon (TOC) was 0.44 and 0.43% higher with irrigation at CRI stages and the use of INS, respectively. The INS with single irrigation at the CRI stage is important to improve the root growth, SMBC dehydrogenase, alkaline phosphatase, and acid phosphatase enzyme activity in the wheat production system.

show abstract

“…More stable and signi cantly higher soybean and wheat yields were recorded under adequate irrigation during both the study years (2017-18 and 2018-19); grain and biomass yields of soybean and wheat were increased signi cantly by 4.6-9.8% and 5.2-12.5%, and 24-49% and 12-54%, respectively under adequate irrigation compared to rainfed plot due to better growth and development of soybean and wheat crops observed owing to favorable soil moisture content under full irrigation regimes. Infrequent and adequate irrigation applied plots the surface layers remained wet for a longer duration, maintaining favorable conditions during owering to maturity time resulting in higher water and nutrient uptake 28,35,36 and nally enhanced yield parameters and yield 37,38 compared to limited-irrigated or rainfed plots. Such enhancements in soybean and wheat yields caused a 10-32% improvement in system productivity.…”

Section: Discussionmentioning

confidence: 99%

“…2). In irrigated plots, the roots were concentrated in the upper layer and had greater horizontal development, which might be due to better moisture availability 28,36 . In rainfed plots, root length and volume were negatively affected due to relatively de cient moisture conditions, where roots did not proliferate as much as under full irrigation and hence were not able to extract water from deeper layers.…”

Section: Discussionmentioning

confidence: 99%

Biopolymeric superabsorbent hydrogels: impact on soil moisture release pattern, crop and water productivity of soybean–wheat under different irrigation regimes in Indo-Gangetic plains of India

Manna

Singh

et al. 2021

Preprint

View full text Add to dashboard Cite

Environmental crises, declining factor productivity, and shrinking natural resource threatened global agricultural sustainability. The task is much more daunting in the Indo-Gangetic northern plains of India, where depletion of the underground water table and erratic rains due to the changing climate pose a major challenge to agriculture. To address these challenges a field investigation was carried out during 2016–18 to test the efficacy of biopolymeric superabsorbent hydrogels namely Pusa Hydrogel (P-hydrogel: a semi-synthetic cellulose derivative-based product) and kaolin derivative of Pusa Hydrogel (K-hydrogel: semi-synthetic cellulose derivative) to assess their effect on crop and water productivity, soil moisture, root dynamics, and economics of soybean (Glycine max L.)–wheat (Triticum aestivum L.) system under three irrigation regimes namely full irrigation, limited irrigation and rainfed. The results revealed that the full irrigation along with P-hydrogel led to enhanced grain yield, biomass yield, and water productivity (WP) of soybean (1.61–10.5%, 2.2–9.5%, and 2.15–21.8%, respectively) and wheat (11.1–18.3%, 12–54% and 11.1–13.1%, respectively) over control plots. The best performance of P-hydrogel was observed under full irrigation compared to K-hydrogel (both at 2.5 and 5.0 kg− 1) and control. Plots treated with P-hydrogel retained 3.0–5.0% higher soil moisture compared to no-hydrogel plots, while K-hydrogel treated plots held the lower moisture (4.0–6.0%) than the control. In terms of profitability, full irrigation along with P-hydrogel plots registered 12.97% higher economic returns over control. The results suggested that full irrigation along with P hydrogels (2.5 kg ha− 1) is a viable option for sustainable production of soybean-wheat systems in the Indo-Gangetic plains of India and other similar eco-regions of the world.

show abstract

Effect of irrigation schedules on plant — Water relations, root, grain yield and water productivity of wheat [Triticum aestivum (L.) emend. Flori & Paol] under various crop establishment techniques

Abstract: Field experiment was conducted during the rabi (winter) seasons of 2012-2013 and 2013-2014, to

Cited by 15 publications

References 13 publications

Biopolymeric superabsorbent hydrogels enhance crop and water productivity of soybean–wheat system in Indo-Gangetic plains of India

Biopolymeric superabsorbent hydrogels enhance crop and water productivity of soybean–wheat system in Indo-Gangetic plains of India

Microbial Biomass Carbon, Activity of Soil Enzymes, Nutrient Availability, Root Growth, and Total Biomass Production in Wheat Cultivars under Variable Irrigation and Nutrient Management

Biopolymeric superabsorbent hydrogels: impact on soil moisture release pattern, crop and water productivity of soybean–wheat under different irrigation regimes in Indo-Gangetic plains of India

Contact Info

Product

Resources

About