Wheat Production under Long-term Application of Inorganic and Organic Fertilizers in Rice-Wheat System under Rainfed Conditions

Suresh, K.; Khadka, Y. G.

doi:10.3126/narj.v9i0.11640

Cited by 3 publications

(4 citation statements)

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“…The increasing dose of N result the linear increment in spike length in both years for all pipeline varieties. These results are in conformity with those of (Rai and Khadka 2009) who observed maximum spike length under fertilization of 100 kg N ha -1 as compared to control and 50 kg N ha -1 in their long term experiment in Khumaltar. Higher test weight with increasing N levels might be due to supply of more N and higher production of photosynthates (Naseri et al 2010) that showed linearly increased test weight due to increasing levels of N application (Figure 4).…”

Section: Discussionsupporting

confidence: 80%

“…The effectiveness of N depends on many factors mainly the term of N applications and the variety (Podolska 2014). There are several studies on the use of N fertilizers and wheat production in Nepal (Rai and Khadka 2009, NWRP 2012, Bhattari et al 2015. However, in present work we elucidate the response of wheat genotypes to different levels of N fertilizers applied for the selection of most promising genotypes.…”

Section: Introductionmentioning

confidence: 99%

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Response of Wheat Genotypes to Different Levels of Nitrogen

Shrestha

Manandhar

Chaudhary

et al. 2016

J. Nep. Agric. Res. Counc.

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ABSRACTA field experiment was conducted for two years using six genotypes of wheat (Triticum aestivum L.) for response to different levels of nitrogen (N) use. The experiment was laid out in split plot design with four levels (0, 50, 100 and 150 kg N ha -1 ) as main plots and six wheat genotypes (BL 3623, BL 3629, BL 3872, NL 1008, NL 1055 and Vijay, a check variety) as sub-plots. Grain yield and other yield components increased linearly in response to N concentrations in both seasons. Only two parameters: days to heading (DOH) and days to maturity (DTM) varied significantly (p ≤ 0.05) among wheat genotypes in both the years. None of the parameters showed interaction effects in both seasons. Vijay showed highest grain yield of 3.12 t ha -1 in 2013 with the application of 100 kg N ha

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Section: Discussionsupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Response of Wheat Genotypes to Different Levels of Nitrogen

Shrestha

Manandhar

Chaudhary

et al. 2016

J. Nep. Agric. Res. Counc.

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“…Panicle length demonstrated an upward trend with rising nitrogen dose, notably in plots managed using UDP, GS, LCC, and PCU techniques. Similarly, Rai and Khadka (2009) documented a linear spike length increase in response to higher nitrogen dose. Another component is grain yield from the RDF treatment, which was statistically on par with LCC and SPAD, despite these treatments utilizing less nitrogen than RDF.…”

Section: Discussionmentioning

confidence: 88%

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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“…This has compelled people to introduce high yielding crop varieties. With the introduction of such high yielding crop varieties, the use of chemical fertilizers has also been increased (Rai and Khadka 2009). Inadequate supply of nitrogen (N) fertilizers can limit the potential productivity of the crop and excessive N causes environmental pollution and economic losses (Rahman et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Effects of Nitrogen Levels on Growth and Yield of Some Newly Released Wheat Genotypes under Bhairahawa Condition

Khatri,

Pandey,

Rawal

et al. 2023

Agron J Nepal

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The newly released wheat varieties with different nutritional demands and their yield potential hinder generalized recommendations for nitrogen (N) fertilization. Field experiments were carried out during 2018/19 and 2019/20 growing seasons to evaluate the response of varying N fertilizer rates on growth and yield parameters of two newly released wheat varieties (Borlaug 2020 and Zinc Gahun-1), one promising line (NL 1179) and Vijay as a check variety. Five N levels (i.e. 0, 50,100,150 and 200 kg N ha-1) were applied in the experiment designed in split plot with three replications. Nitrogen levels and genotypes were allocated as main plot and sub plot treatments, respectively. The combined analysis of both growing seasons indicated that, all newly released and promising genotypes performed better than check variety. NL 1179 recorded the highest grain yield followed by Borlaug 2020 and Zinc Gahun-1. A linear increase of grain yield was observed with increased rate of N from 0 to 200 kg ha-1, while 200 kg N ha-1showed significantly (p<0.001) highest grain yield which was statistically at par with 150 kg N/ha. Similarly, gross margin (Rs. 148933 ha-1) was highest with the application of N @ 150 kg ha-1. Interaction effect of genotypes and N levels was not found significant. Thus, it can be concluded that for higher grain production of improved wheat varieties, 150 kg Nha-1could be recommended under Bhairahawa condition.

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Wheat Production under Long-term Application of Inorganic and Organic Fertilizers in Rice-Wheat System under Rainfed Conditions

Cited by 3 publications

References 1 publication

Response of Wheat Genotypes to Different Levels of Nitrogen

Response of Wheat Genotypes to Different Levels of Nitrogen

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

Effects of Nitrogen Levels on Growth and Yield of Some Newly Released Wheat Genotypes under Bhairahawa Condition

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