Water Saving in Rice-Wheat Systems

Humphreys, E.; Meisner, C.A.; Gupta, Raj Kumar; Timsina, Jagadish; Beecher, H. G.; Lu, Tang; Yadvinder‐Singh,; Gill, Mustaq Ahmad; Masih, Ilyas; Guo, Zheng; Thompson, JA

doi:10.1626/pps.8.242

Cited by 84 publications

(34 citation statements)

References 49 publications

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“…They advised that effective N fertilizer utilized by rice paddy plants influenced better rice production in raised bed system. Another study speculated that potential agronomic advances of beds include improved soil structure due to reduced compaction through controlled trafficking and reduced water logging condition is responsible for improved rice production [23]. Weight of 1000 grains was also higher in foliar spray in bed planting than conventional method (Table 1).…”

Section: Foliar Spray In Bed Planting Methods Produces Higher Biomass mentioning

confidence: 99%

Foliar Spray of Nitrogen Fertilizer on Raised Bed Increases Yield of Transplanted Aman Rice over Conventional Method

Bhuyan

Ferdousi²,

Iqbal

2012

ISRN Agronomy

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Bed planting with foliar nitrogen fertilizer application of rice production systems is very new, and research on it is still at introductory phase. Influence of foliar application of nitrogen fertilizer on growth and yield of transplanted aman rice and evaluation of water and fertilizer application efficiency of rice-fallow-rice cropping system were investigated under raised bed cultivation method. Results showed that foliar spray in bed planting method increased grain yield of transplanted aman rice up to 9.33% over conventional method. Foliar nitrogen fertilizer application in bed planting method increased the number of panicle m −2 , number of grains panicle −1 , and 1000-grain weight of rice than the conventional method. Sterility percentage and weed infestation were lower at foliar nitrogen fertilizer application in bed planting method than the conventional method. Thirty-nine percent of irrigation water and time for application could be saved through foliar nitrogen spray in bed planting than conventional method. Water use efficiency for grain and biomass production was higher by foliar nitrogen fertilizer application in bed planting than conventional method. Likewise, agronomic efficiency of foliar nitrogen fertilizer application in bed planting method was higher than the conventional method. This study concluded that foliar nitrogen spray in bed planting method is a new approach to get fertilizer and water use efficiency as well as higher yield compared to existing agronomic practice in Bangladesh.

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Section: Foliar Spray In Bed Planting Methods Produces Higher Biomass mentioning

confidence: 99%

Foliar Spray of Nitrogen Fertilizer on Raised Bed Increases Yield of Transplanted Aman Rice over Conventional Method

Bhuyan

Ferdousi²,

Iqbal

2012

ISRN Agronomy

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“…Rao et al (2011) provided evidence that cropping system intensification from a single crop following fallow to double cropping is feasible on soils with high storage capacity in semi-arid tropics by better timing of rainy-and post-rainy-season crops. Water-saving practices such as mulching in the rainy season crop improves water storage for the subsequent dry-season crop (Sandhu et al 1992;Humphreys et al 2005). Intensification increases water-use efficiency by better using stored soil water and substantially reducing runoff and evaporation losses during the early rainy season.…”

Section: Initial Depletionmentioning

confidence: 99%

Management of crop water under drought: a review

Bodner

Nakhforoosh

Kaul

2015

Agron. Sustain. Dev.

457

234

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Drought is a predominant cause of low yields worldwide. There is an urgent need for more water efficient cropping systems facing large water consumption of irrigated agriculture and high unproductive losses via runoff and evaporation. Identification of yield-limiting constraints in the plant-soil-atmosphere continuum are the key to improved management of plant water stress. Crop ecology provides a systematic approach for this purpose integrating soil hydrology and plant physiology into the context of crop production. We review main climate, soil and plant properties and processes that determine yield in different water-limited environments. From this analysis, management measures for cropping systems under specific drought conditions are derived. Major findings from literature analysis are as follows. (1) Unproductive water losses such as evaporation and runoff increase from continental in-season rainfall climates to storage-dependent winter rainfall climates. Highest losses occur under tropical residual moisture regimes with short intense rainy season. (2) Sites with a climatic dry season require adaptation via phenology and water saving to ensure stable yields. Intermittent droughts can be buffered via the root system, which is still largely underutilised for better stress resistance. (3) At short-term better management options such as mulching and date of seeding allow to adjust cropping systems to site constraints. Adapted cultivars can improve the synchronisation between crop water demand and soil supply. At long term, soil hydraulic and plant physiological constraints can be overcome by changing tillage systems and breeding new varieties with higher stress resistance. (4) Interactions between plant and soil, particularly in the rhizosphere, are a way towards better crop water supply. Targeted management of such plant-soil interactions is still at infancy.We conclude that understanding site-specific stress hydrology is imperative to select the most efficient measures to mitigate stress. Major progress in future can be expected from crop ecology focussing on the management of complex plant (root)-soil interactions.

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“…Population of Phalaris minor was also reduced, thus leading to less dependency on herbicides and cleaner environment (Sharma and Behera 2004). Other potential agronomic advantages of bed include improved soil structure due to reduced compaction through controlled trafficking and reduced waterlogging (Humphreys et al 2005). In northern China, irrigation water application was reduced by 17% while grain yield was increased by 10% under bed planting, due to improved soil physical properties, reduced lodging and disease incidence (Wang et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Productivity and water use efficiency of wheat(Triticum aestivum)under different resource conservation techniques and irrigation regimes

Behera

Sharma

2014

Cereal Research Communications

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In India wheat is conventionally planted on flat-bed and irrigation is applied by flooding, which results in low water-use efficiency. Efficient use of irrigation water is a major researchable issue in most command areas for improving crop productivity. Resource conservation technologies aimed at improving productivity and water-use efficiency such as raised-bed planting have been found useful in wide row crops like maize, cotton, sunflower, sugarcane, etc. However, such information is not available for a relatively narrow row crop like wheat. A field experiment was conducted during 2002-04 at New Delhi on a sandy loam soil to evaluate the performance of wheat crop under resource conservation techniques (RCTs), viz. furrow-irrigated raised-bed (FIRB), broad-bed and furrow (BBF), raised-bed and sunken-bed (RBSB) and conventional flat-bed (FB) in main plots, and 4 irrigation regimes, viz. irrigation only at crown root initiation (CRI); irrigation at 0.9 and 1.2 IW/CPE (irrigation water/cumulative pan evaporation) ratio and irrigations at six critical physiological growth stages in subplots. Wheat performed equally well under all the RCTs with respect to grain yield. The maximum grain yield was recorded under 1.2 IW/CPE ratio, which was at par with 6 irrigations at critical growth stages, but significantly higher than 0.9 IW/CPE and one irrigation at CRI. Bed planting techniques involving FIRB and BBF recorded significantly lower consumptive use (CU) of water than RBSB and FB. There was saving of 18.2 to 19.5% irrigation water by adopting FIRB compared to FB with flood irrigation. Water-use efficiency under FIRB and BBF was 8.3-22.8 and 4.9-24.8% higher respectively over the FB with flooding.

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Water Saving in Rice-Wheat Systems

Cited by 84 publications

References 49 publications

Foliar Spray of Nitrogen Fertilizer on Raised Bed Increases Yield of Transplanted Aman Rice over Conventional Method

Foliar Spray of Nitrogen Fertilizer on Raised Bed Increases Yield of Transplanted Aman Rice over Conventional Method

Management of crop water under drought: a review

Productivity and water use efficiency of wheat(Triticum aestivum)under different resource conservation techniques and irrigation regimes

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