Nitrogen Use Impact on Nitrogen Use Efficiency and Lint Yield in Zero Tillage Cotton

Khan, Niamat Ullah; Khan, Farkhanda; Kashan, Muhammad; Ullah, Q. A.; Rauf, Abdur

doi:10.17582/journal.pjar/2018/31.1.45.54

Cited by 2 publications

(3 citation statements)

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“…Generally, tillage practices and N rates significantly affected the quality traits, such as fiber length, fiber strength, and micronaire. These findings are inconsistent with the results of previous studies [47][48][49], where the authors have found that tillage practices did not influence the fiber quality traits. However, these findings are consistent with Khan et al [50], who reported that tillage practices significantly affected the fiber quality traits.…”

Section: Discussioncontrasting

confidence: 99%

Effect of Zero and Minimum Tillage on Cotton Productivity and Soil Characteristics under Different Nitrogen Application Rates

Khan

Khan²,

Goheer³

et al. 2021

Sustainability

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Long-term conservation tillage and straw incorporation are reported to improve the soil health, growth, and yield traits of crops; however, little is known regarding the optimal nitrogen (N) supply under conservation tillage with straw incorporation. The present study evaluated the effects of conservation tillage practices (ZTsas: zero tillage plus wheat straw on the soil surface as such, and MTsi: minimum tillage plus wheat straw incorporated) and different N application rates (50, 100, 150, and 200 kg ha−1) on the yield and quality traits of cotton and soil characteristics in a five-year field experiment. The results showed that ZTsas produced a higher number of bolls per plant, boll weight, seed cotton yield, 100-seed weight, ginning out-turn (GOT), fiber length, and strength than MTsi. Among different N application rates, the maximum number of bolls per plant, boll weight, seed cotton yield, GOT, 100-seed weight, fiber length, strength, and micronaire were recorded at 150 kg N ha−1. Averaged over the years, tillage × N revealed that ZTsas had a higher boll number plant−1, boll weight, 100-seed weight, GOT, fiber length, and strength with N application at 150 kg ha−1, as compared to other tillage systems. Based on the statistical results, there is no significant difference in total soil N and soil organic matter among different N rates. Further, compared to MTsi, ZTsas recorded higher soil organic matter (SOM, 8%), total soil N (TSN, 29%), water-stable aggregates (WSA, 8%), and mean weight diameter (MWD, 28.5%), particularly when the N application of 150 kg ha−1. The fiber fineness showed that ZTsas had no adverse impact on fiber fineness compared with MTsi. These results indicate that ZTsas with 150 kg N ha−1 may be the optimum and most sustainable approach to improve cotton yield and soil quality in the wheat–cotton system.

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Section: Discussioncontrasting

confidence: 99%

Effect of Zero and Minimum Tillage on Cotton Productivity and Soil Characteristics under Different Nitrogen Application Rates

Khan

Khan²,

Goheer³

et al. 2021

Sustainability

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“…Similar results were also found by Geng et al ( 2016 ) which reported that seed cotton yield was higher in slow-release N fertilizer (polymer-coated urea) higher N application than simple urea application. The N use efficiency increased with the application of bacterial coated urea at lower N application which might be because of slow release of N from bacterial coated urea and reduced N losses through leaching, volatilization, and denitrification (Tang et al 2012 ; Khan et al 2018 , 2021 ). Geng et al ( 2016 ) also found that the N use efficiency of a cotton crop was higher in slow-release N fertilizer (polymer-coated urea) in comparison to simple urea application.…”

Section: Discussionmentioning

confidence: 99%

“…Different measures such as the use of bio-inoculants(Khaitov et al, 2019 ), maintenance of optimum plant population and varying N application rates (Li et al 2017 ), and the use of overhead sprinkler system (Bronson et al 2011 ) have been shown to improve NUE in a cotton production system. In Pakistan, some measures have already been taken to improve NUE, including balanced use of fertilizers (Raza et al 2018 ), adopting zero tillage (Khan et al 2018 ), and use of slow-release fertilizers (Naz and Sulaiman, 2016 ).…”

Section: Introductionmentioning

confidence: 99%

Biochar and slow-releasing nitrogen fertilizers improved growth, nitrogen use, yield, and fiber quality of cotton under arid climatic conditions

Manzoor

Habib-ur-Rahman

Haider

et al. 2021

Environ Sci Pollut Res

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The efficiency of nitrogenous fertilizers in South Asia is on a declining trajectory due to increased losses. Biochar (BC) and slow-releasing nitrogen fertilizers (SRNF) have been found to improve nitrogen use efficiency (NUE) in certain cases. However, field-scale studies to explore the potential of BC and SRNF in south Asian arid climate are lacking. Here we conducted a field experiment in the arid environment to demonstrate the response of BC and SRNF on cotton growth and yield quality. The treatments were comprised of two factors, (A) nitrogen sources, (i) simple urea, (ii)neem-coated urea, (iii)sulfur-coated urea, (iv) bacterial coated urea, and cotton stalks biochar impregnated with simple urea, and (B) nitrogen application rates, N1=160 kg ha-1, N2 = 120 kg ha-1, and N3 = 80 kg ha-1. Different SRNF differentially affected cotton growth, morphological and physiological attributes, and seed cotton yield (SCY). The bacterial coated urea at the highest rate of N application (160 kg ha-1) resulted in a higher net leaf photosynthetic rate (32.8 μmol m-2 s-1), leaf transpiration rate (8.10 mmol s-1), and stomatal conductance (0.502 mol m-2 s-1), while leaf area index (LAI), crop growth rate (CGR), and seed cotton yield (4513 kg ha-1) were increased by bacterial coated urea at 120 kg ha-1 than simple urea. However, low rate N application (80 kg ha-1) of bacterial coated urea showed higher nitrogen use efficiency (39.6 kg SCY kg-1 N). The fiber quality (fiber length, fiber strength, ginning outturn, fiber index, and seed index) was also increased with the high N application rates than N2 and N3 application. To summarize, the bacterial coated urea with recommended N (160 kg ha-1) and 75% of recommended N application (120 kg ha-1) may be recommended for farmers in the arid climatic conditions of Punjab to enhance the seed cotton yield, thereby reducing nitrogen losses.

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Nitrogen Use Impact on Nitrogen Use Efficiency and Lint Yield in Zero Tillage Cotton

Cited by 2 publications

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Effect of Zero and Minimum Tillage on Cotton Productivity and Soil Characteristics under Different Nitrogen Application Rates

Effect of Zero and Minimum Tillage on Cotton Productivity and Soil Characteristics under Different Nitrogen Application Rates

Biochar and slow-releasing nitrogen fertilizers improved growth, nitrogen use, yield, and fiber quality of cotton under arid climatic conditions

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