Nutrient Availability in Bt Cotton by using Drip Fertigation Under Different Phosphorous Sources

Harish, Jana; Rajkumar, B.; D, Pawar D.; D, Kale K.

doi:10.17577/ijertv6is060233

Cited by 2 publications

(1 citation statement)

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“…Fertilizer use efficiency in India can be specifically enhanced greatly over the prevalent but inefficient method of fertilizer application by broadcasting ( Harish et al., 2017 ). Drip-fertigated cotton not only exhibits enhanced N uptake over furrow-irrigated crops but also curbs the energy and labor costs for nutrient application as no extra equipment, labor, and machinery are required ( Sidhu et al., 2019 ).…”

Section: Introductionmentioning

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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Section: Introductionmentioning

confidence: 99%

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

Singh

et al. 2022

Front. Plant Sci.

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Production and Economics of Hybrid Tomato (Solanum lycopersicum) under Drip Fertigation

Kale¹,

Pawar²,

Hasure³

et al. 2019

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A field study was conducted at experimental farm of Interfaculty Department of Irrigation Water Management, Post Graduate Institute, M.P.K.V., Rahuri, Maharashtra, India during Rabi season of 2014-15. The experiment was laid out in randomized block design with eight treatments and three replications. The treatments consisted of four levels of fertilizer application as 100%, 75%, 75% with foliar sprays and 50% recommended dose (RD) under drip fertigation (DF) and compared with conventional irrigation and conventional fertilizer application. The significantly higher yield (52.62 t ha-1) of tomato was obtained in DF with 100% RD and it was at par with DF with 75% RD + 3 foliar sprays, DF with 100% RD, N and K drip, P through soil and DF with 75% RD. The drip method had lowest water use (458.4 mm) as compared with 878.6 mm in surface irrigation method. The treatment consisting DF with 100% RD provided net seasonal income (Rs. 3,93,311 ha-1), net extra income over control (Rs.1,52,056 ha-1). The maximum B:C ratio (3.96) was observed in DI with 100% RD, N and K drip, P through soil followed by DF with 100% RD. The fertigation with 75% RD in 18 weekly splits as per schedule is the best treatment for improved growth, yield and water productivity of tomato (var. Abhinav) cultivated in silty clay loam soils of Western Maharashtra.

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Nutrient Availability in Bt Cotton by using Drip Fertigation Under Different Phosphorous Sources

Cited by 2 publications

References 1 publication

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

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

Production and Economics of Hybrid Tomato (Solanum lycopersicum) under Drip Fertigation

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