Growth, Yield and Nitrogen Use Efficiency in Wheat as Influenced by Leaf Colour Chart and Chlorophyll Meter Based Nitrogen Management

na, Ree; Dhyani, V. C.; Chaturvedi, Sumit; mansu, Hi; Gouda, Sekhar

doi:10.20546/ijcmas.2017.612.191

Cited by 5 publications

(4 citation statements)

References 6 publications

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“…Data on growth parameters of wheat revealed that the growth characters of were significantly influenced by different treatments of nitrogen management (Table 1). Leaf color chart ≤ 5 based nitrogen application recorded significantly higher plant height which was at par with leaf color chart ≤ 4, sufficiency index and leaf color chart ≤ 3.This might be due to favorable effect of nitrogen on cell division and tissue organization that ultimately led to significant improvement in plant height (Reena et al 2017a).Dry matter production and absolute growth rate increased significantly with leaf colour chart ≤ 5 based nitrogen application which was found to be statistically at par with nitrogen application based on leaf colour chart ≤ 4, sufficiency index based nitrogen application and leaf colour chart ≤ 3 ( Table 1). This caused favourable effect of nitrogen on cell-division, tissue organization and better synchronization of nitrogen supply with crop nitrogen demand which led to rapid cell elongation, higher dry matter accumulation and absolute growth rate.…”

Section: Resultsmentioning

confidence: 89%

Real Time Nitrogen Management Through Leaf Colour Chart and Chlorophyll Meter in Wheat (Triticum Aestivum L.) Of Jammu

Sharma,

Ap Singh

et al. 2023

Bangladesh J. Bot.

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A field experiment was conducted to assess the effect of real time nitrogen management through leaf colour chart and chlorophyll meter in wheat. The experimental results revealed that Leaf color chart ≤5 based nitrogen application recorded significantly higher growth, yield and yield attributes, which was statistically at par with leaf color chart ≤ 4, sufficiency index and leaf color chart ≤3. However, recommended nitrogen application recorded significantly highest agro physiological efficiency. Sufficiency index recorded highest benefit cost ratio (B:C) which was followed by leaf color chart ≤ 4 and leaf color chart ≤ 5. Bangladesh J. Bot. 52(2): 277-282, 2023 (June)

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Section: Resultsmentioning

confidence: 89%

Real Time Nitrogen Management Through Leaf Colour Chart and Chlorophyll Meter in Wheat (Triticum Aestivum L.) Of Jammu

Sharma,

Ap Singh

et al. 2023

Bangladesh J. Bot.

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“…These outcomes align with our findings, further supporting the effectiveness of this approach when contrasted with the recommended fixedtime nitrogen splitting and control methods. Reena et al (2017) discovered that the NUE and yield determination study on wheat, utilizing SPAD and LCC-based nitrogen management, showed that the recommended nitrogen level of 150 kg N ha -1 led to enhanced plant attributes and yield. Nonetheless, real-time management with 105 kg N ha -1 at specific growth stages resulted comparable results, highlighting the significance of precise nitrogen timing.…”

Section: Discussionmentioning

confidence: 99%

“…This could be attributed to the improved synchronization of nitrogen availability with the crop's need until the reproductive growth stage. This synchronization led to heightened photosynthesis rates, promoting more significant growth, plant height, and biomass production (Reena et al, 2017;Barad et al, 2018) this likely spurred root growth and functional activity, increasing nutrient extraction from the soil environment to the aerial parts (Barad et al, 2018). Our experimental results for grain yield and total nitrogen uptake align closely with earlier studies (Chittapur et al, 2015;Ghosh et al, 2020), suggesting that precision nitrogen management methods like GS and SPAD values can effectively increase grain and straw yield (Ali et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Precision Nitrogen Management in Spring Rice (Oryza sativa L.) using Decision Support Tools in Chitwan, Nepal

Bhattarai,

Pandey,

Marahatta

et al. 2024

Turkish JAF Sci.Tech.

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The blanket prescription of nitrogen (N) fertilizer often results in irrational fertilization. To address this issue and align the application of nitrogen fertilizers with the crop-specific demand, it is imperative to save nitrogen resources, maximize the uptake and net income, and subside environmental pollution. In this context, a field experiment was carried out in Kumroj, Chitwan, Nepal during 2022 to assess the growth, yield, and profitability of rice production by comparing different precision nitrogen management practices. The study was carried out in a randomized complete block design with seven treatments and three replications. The treatments included decision support tools for nitrogen management such as the Green Seeker (GS), the Soil plant analysis development Development (SPAD) meter, and the Leaf Color Chart (LCC) combined with basal application of nitrogen at 30 kg ha–1 and the Urea briquette Deep Placement (UDP), the Polymer Coated Urea (PCU), and the Recommended Dose of Fertilizers (RDF, 120 kg N ha–1). The growth, yield, yield attributes, and financial data were taken. Precision nitrogen management techniques significantly enhanced rice growth and yield parameters. GS–guided application required the highest nitrogen demand (155 kg ha–1), while SPAD (80 kg ha–1) and UDP (78 kg ha–1) resulted in lower usage. PCU and UDP enhanced plant height, leaf area index, and above–ground dry matter. Higher grain yield (6.64 t ha–1) was attained with LCC, SPAD (6.44 t ha–1), and UDP (6.41 t ha–1) treatments. GS application exhibited the highest straw yield (11.17 t ha–1), while LCC demonstrated the highest benefit–cost ratio (1.96). This study concluded that SPAD and UDP demonstrated the potential to save nitrogen resources, while LCC and UDP were found profitable.

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“…Understanding environmental factors, agronomic techniques, and the linkage between grain yield and the establishment of fertilization e ciency indicators are crucial for the production of wheat (Reena et al 2017). In Nepal, application of fertilizer is not only insu cient, but also unbalanced (Rawal et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Nitrogen concentration, its uptake, use efficiency and yield of wheat (Triticum aestivum L.) As influenced by difference in rate of nitrogen application in Khumaltar, Nepal

Rawal

Vista

Khadka

2023

Preprint

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Appropriate application of nitrogen (N) not only increases wheat production but also results in optimum N use efficiency (NUE). An experiment was conducted to determine N concentration, uptake, use efficiency and performance of wheat in response to N fertility levels at Khumaltar Lalitpur, Nepal during 2019/20 and 20020/21. The experiment involved 7 treatments; 6 levels of N (0, 50, 75, 100, 125, 150 kg ha− 1) with application of P2O5:K2O in 50:50 kg ha− 1 and zero plot (no fertilizer application) which was laid out in randomized complete block design and replicated three times. The varying N had significant influence on grain yield, N concentration, its uptake, NUE and economics of wheat production. Two years pooled grain yield showed that significantly (p ≤ 0.001) higher grain yield (6.52 Mg ha− 1) with B: C ratio of 2.6 was observed from application of 150 kg N ha− 1 which was at par with use of N @ 125 kg ha− 1 (6.32 Mg ha− 1). The two years mean N concentration in grain and straw of wheat were 13.98 and 3.49 g kg− 1, respectively. The data revealed that 4.9 Mg ha− 1 grain yield plus 5.56 Mg ha− 1 dry straw yield removed 81.7 kg N ha− 1. Likewise, N partition in wheat grain and straw were 75% and 25% respectively. The mean partial factor productivity, internal efficiency, physiological efficiency, recovery efficiency, and agronomic efficiency of N in wheat was found to be 61.8 kg kg− 1, 59.1 kg kg− 1, 53.1 kg kg− 1, 45.0%, and 22.5 kg kg− 1, respectively. N was limiting nutrient as added N fertilizer had considerable impact in wheat production and recommended to use 125 kg N ha− 1 under similar soil properties and ecology.

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Growth, Yield and Nitrogen Use Efficiency in Wheat as Influenced by Leaf Colour Chart and Chlorophyll Meter Based Nitrogen Management

Cited by 5 publications

References 6 publications

Real Time Nitrogen Management Through Leaf Colour Chart and Chlorophyll Meter in Wheat (Triticum Aestivum L.) Of Jammu

Real Time Nitrogen Management Through Leaf Colour Chart and Chlorophyll Meter in Wheat (Triticum Aestivum L.) Of Jammu

Precision Nitrogen Management in Spring Rice (Oryza sativa L.) using Decision Support Tools in Chitwan, Nepal

Nitrogen concentration, its uptake, use efficiency and yield of wheat (Triticum aestivum L.) As influenced by difference in rate of nitrogen application in Khumaltar, Nepal

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