Integrated nitrogen management improves productivity and economic returns of wheat-maize cropping system

Sarwar, Naeem; Rehman, Atique-ur; Farooq, Omer; Wasaya, Allah; Hussain, Mubshar; El-Shehawi, Ahmed M.; Ahmad, Shakeel; Brestič, Marián; Mahmoud, Samy F.; Živčák, Marek; Farooq, Shahid

doi:10.1016/j.jksus.2021.101475

Cited by 32 publications

(22 citation statements)

References 23 publications

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“…Nitrogen (N), phosphorous (P) and potassium (K) are the important mineral nutrients for the optimum growth and production of plants in commercial agricultural systems [ 1 ]. Nitrogen supports plant foliage to develop resilience against stresses, whereas P aids the development of flowers and roots [ 2 , 3 ]. Similarly, K is necessary for overall plant fitness.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, addition of nutrients to the soils is necessary for profitable crop production and fulfilling dietary needs of rapidly growing global population [ 6 ]. However, a limited quantity of the applied nutrients is taken by crop plants, while the remaining undergo various kinds of losses [ 2 , 3 ]. For example, agricultural soils have higher amounts of organic and inorganic P; however, its significant proportion is in unavailable [ 7 ] as cations in the soil react with P and immobilize it by forming insoluble compounds [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

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Plant growth promoting rhizobacteria improve growth and yield related attributes of chili under low nitrogen availability

et al. 2021

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Nitrogen (N) is a macronutrient desired by crop plants in large quantities. However, hiking fertilizer prices need alternative N sources for reducing its requirements through appropriate management practices. Plant growth promoting rhizobacteria (PGPR) are well-known for their role in lowering N requirements of crop plants. This study assessed the impact of PGPR inoculation on growth, allometry and biochemical traits of chili under different N doses. Two PGPR, i.e., Azospirillum ‘Er-20’ (nitrogen fixing) and Agrobacterium ‘Ca-18’ (phosphorous solubilizing) were used for inoculation, while control treatment had no PGPR inoculation. Six N doses, i.e., 100, 80, 75, 70, 60 and 50% of the N required by chili were included in the study. Data relating to growth traits, biochemical attributes and yield related traits were recorded. Interaction among N doses and PGPR inoculation significantly altered all growth traits, biochemical attributes and yield related traits. The highest values of the recorded traits were observed for 100% N with and without PGPR inoculation and 75% N with PGPR inoculation. The lowest values of the recorded traits were noted for 50% N without PGPR inoculation. The PGPR inoculation improved the measured traits compared to the traits recorded noted in same N dose without PGPR inoculation. Results revealed that PGPR had the potential to lower 25% N requirement for chili. Therefore, it is recommended that PGPR must be used in chili cultivation to lower N requirements.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Plant growth promoting rhizobacteria improve growth and yield related attributes of chili under low nitrogen availability

et al. 2021

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“…Integrated nutrient management (INM) includes the optimum and balanced use of indigenous N components, i.e., plant residues, organic manures, biological N fixation, mineral N fertilizers, and their complementary interactive pathways to increase N recovery and NUE ( Sarwar et al, 2021 ). The positive impacts of the INM approach involving the mixed use of organic (e.g., biochar, manures, and compost) and inorganic N resources are either due to optimization of physico-chemical properties of soil ( Oladele et al, 2019 ) or due to better plant root growth and improved supply of required N along with other micronutrients ( Thind et al, 2012 ).…”

Section: Toward Better N Managementmentioning

confidence: 99%

Recent trends in nitrogen cycle and eco-efficient nitrogen management strategies in aerobic rice system

Farooq

Wang

Uzair³

et al. 2022

Front. Plant Sci.

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Rice (Oryza sativa L.) is considered as a staple food for more than half of the global population, and sustaining productivity under a scarcity of resources is challenging to meet the future food demands of the inflating global population. The aerobic rice system can be considered as a transformational replacement for traditional rice, but the widespread adaptation of this innovative approach has been challenged due to higher losses of nitrogen (N) and reduced N-use efficiency (NUE). For normal growth and developmental processes in crop plants, N is required in higher amounts. N is a mineral nutrient and an important constituent of amino acids, nucleic acids, and many photosynthetic metabolites, and hence is essential for normal plant growth and metabolism. Excessive application of N fertilizers improves aerobic rice growth and yield, but compromises economic and environmental sustainability. Irregular and uncontrolled use of N fertilizers have elevated several environmental issues linked to higher N losses in the form of nitrous oxide (N2O), ammonia (NH3), and nitrate (NO3–), thereby threatening environmental sustainability due to higher warming potential, ozone depletion capacities, and abilities to eutrophicate the water resources. Hence, enhancing NUE in aerobic rice has become an urgent need for the development of a sustainable production system. This article was designed to investigate the major challenge of low NUE and evaluate recent advances in pathways of the N cycle under the aerobic rice system, and thereby suggest the agronomic management approaches to improve NUE. The major objective of this review is about optimizing the application of N inputs while sustaining rice productivity and ensuring environmental safety. This review elaborates that different soil conditions significantly shift the N dynamics via changes in major pathways of the N cycle and comprehensively reviews the facts why N losses are high under the aerobic rice system, which factors hinder in attaining high NUE, and how it can become an eco-efficient production system through agronomic managements. Moreover, it explores the interactive mechanisms of how proper management of N cycle pathways can be accomplished via optimized N fertilizer amendments. Meanwhile, this study suggests several agricultural and agronomic approaches, such as site-specific N management, integrated nutrient management (INM), and incorporation of N fertilizers with enhanced use efficiency that may interactively improve the NUE and thereby plant N uptake in the aerobic rice system. Additionally, resource conservation practices, such as plant residue management, green manuring, improved genetic breeding, and precision farming, are essential to enhance NUE. Deep insights into the recent advances in the pathways of the N cycle under the aerobic rice system necessarily suggest the incorporation of the suggested agronomic adjustments to reduce N losses and enhance NUE while sustaining rice productivity and environmental safety. Future research on N dynamics is encouraged under the aerobic rice system focusing on the interactive evaluation of shifts among activities and diversity in microbial communities, NUE, and plant demands while applying N management measures, which is necessary for its widespread adaptation in face of the projected climate change and scarcity of resources.

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“…Due to climate change, water resources are depleting all over the world so water-saving cropping systems are being promoted [1]. Poor and unsustainable soil fertility management are the main constraints for lower fertilizer use efficiency in crop production [2,3], which not only enhance the cost of production but also can pollute natural resources [4]. In the Indo-Gangetic plains, a rice-wheat cropping system covers nearly 85% of the area and is a life line for billions of people.…”

Section: Introductionmentioning

confidence: 99%

Biochar Integrated Nutrient Application Improves Crop Productivity, Sustainability and Profitability of Maize–Wheat Cropping System

et al. 2023

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Enhancing cereal crop production to feed the largely growing population is an important approach towards maintaining food security. Fertilizer management is the major component of crop production requiring special attention for sustainable application. Integrated nutrient management (INM) is an evolving idea, which appears to contribute to sustainable nutrient management. A field study was designed to see the impact of INM on a maize–wheat cropping system during winter (wheat) and summer (maize) season at Agronomic Research Farm, Bahauddin Zakariya University Multan, Pakistan. Both wheat and maize crops were grown consecutively along with full inorganic fertilizer (NPK) as well as with partial dose of fertilizer (25%, 50%, 75% NPK) supplemented with or without the addition of biochar (5 ton/ha). Data were collected regarding crop growth, yield and quality and further analyzed using MSTAT-C statistics software. Results revealed that the INM approach (75% of NPK + Biochar) enabled crops to improve dry matter production and its translocation towards sink which in turn boosted the crop productivity. This treatment improved dry matter (19%, 57%), grain weight (44%, 54%), grain yield (60%, 63%) and harvest index (30%, 29%) over the control in maize and wheat crops. It also improved the nutrient uptake in the plants which in turn improved the nutrient contents in the grains. Similarly, crops recorded higher system productivity (USD 790, USD 830) in both years and were found to be economically sustainable under INM. It was concluded that an INM strategy (75% of NPK + Biochar) can improve the productivity and sustainability of a maize–wheat cropping system to maintain the food security.

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Integrated nitrogen management improves productivity and economic returns of wheat-maize cropping system

Cited by 32 publications

References 23 publications

Plant growth promoting rhizobacteria improve growth and yield related attributes of chili under low nitrogen availability

Plant growth promoting rhizobacteria improve growth and yield related attributes of chili under low nitrogen availability

Recent trends in nitrogen cycle and eco-efficient nitrogen management strategies in aerobic rice system

Biochar Integrated Nutrient Application Improves Crop Productivity, Sustainability and Profitability of Maize–Wheat Cropping System

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