Strategies for Managing Soil Nitrogen to Prevent Nitrate-N Leaching in Intensive Agriculture System

Liu, Zhaohui; Song, Xinshan; Jiang, Lihua; Lin, Haiqing; Yu, Xu; Gao, Xiang; Fang, Zheng; Tan, Deshui; Mei, Wang; Shi, Jianghong; Shen, Yuwen

doi:10.5772/29419

Cited by 4 publications

(3 citation statements)

References 57 publications

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“…Our result confirmed that nitrate leaching due to a higher N rate occurred, especially in growing conditions with a high rainfall amount and a high irrigation rate. The same general pattern of higher leaching losses was found in many previous studies [46,49,82,83].…”

Section: Discussionsupporting

confidence: 87%

“…McBratney and Field [43] and Suchy et al [44] claimed that excessive application of N fertilizer has negative effects on crops, greatly reduces N use efficiency (NUE), and causes significant nitrate leaching losses and contamination of groundwater. The main source of nitrate contamination that is associated with groundwater is crop production, i.e., N fertilization [45] due to the low N fertilization efficiency [46]. In the European Union (UN), the Nitrate Directive (1991, 91/676/EEC) is the main regulation for reducing the environmental impacts of N fertilizer and for increasing nitrogen use efficiency.…”

Section: Introductionmentioning

confidence: 99%

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Extreme Weather Events Affect Agronomic Practices and Their Environmental Impact in Maize Cultivation

et al. 2021

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Sustainable and profitable crop production has become a challenge due to frequent weather extremes, where unstable crop yields are often followed by the negative impacts of agronomic practices on the environment, i.e., nitrate leaching in irrigated and nitrogen (N)-fertilized crop production. To study this issue, a three-year field study was conducted during quite different growing seasons in terms of weather conditions, i.e., extremely wet, extremely dry, and average years. Over three consecutive years, the irrigation and N fertilizers rates were tested for their effect on grain yield and composition, i.e., protein, starch, and oil content of the maize hybrids; soil N level (%); and nitrate leaching. The results showed that the impact of the tested factors and their significance was year- or weather-condition-dependent. The grain yield result stood out during the extremely wet year, where the irrigation rate reduced the grain yield by 7.6% due to the stress caused by the excessive amount of water. In the remainder of the study, the irrigation rate expectedly increased the grain yield by 13.9% (a2) and 20.8% (a3) in the extremely dry year and 22.7% (a2) and 39.5% (a3) during the average year. Regardless of the weather conditions, the N fertilizer rate increased the grain yield and protein content. The soil N level showed a typical pattern, where the maximum levels were at the beginning of the study period and were higher as the N fertilizer rate was increased. Significant variations in the soil N level were found between weather conditions (r = −0.719) and N fertilizer rate (r = 0.401). Nitrate leaching losses were expectedly found for irrigation and N fertilizer treatments with the highest rates (a3b3 = 79.8 mg NO3− L).

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Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Extreme Weather Events Affect Agronomic Practices and Their Environmental Impact in Maize Cultivation

et al. 2021

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“…Derin köklü bitkiler biyolojik filtre gibi hareket ederek zemin suyundaki nitratı geri kazanarak nitrat yıkanmasını azaltmaktadır. Özellikle kumlu topraklarda yonca içeren münavebe derin kökleri ve yüksek su kullanım etkinliği sebebiyle yıkanma problemini azaltmaya yönelik etkili bir yaklaşımdır [30].…”

Section: Bitkisel üRetimde Azot Alım Etkinliğiunclassified

Nitrogen Uptake Efficiency in Plant Production and Negative Effects of Reactive Nitrogen on Environment

Karaşahin¹

2014

A P J Eng Sci

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ÖzetTarımsal üretimde toprağa uygulanan azotun bitkiler tarafından alınan miktarı üretim yönetim uygulamaları ve ürün çeşitlerine göre değişmekle birlikte ancak yarısı kadardır. Bitkiler tarafından kullanılamayan bu miktar ciddi ekonomik kayıp oluşturmakla birlikte önemli çevre ve sağlık problemlerine neden olmaktadır. Bu çalışma ile bitkisel üretimde azot alım etkinliğinin düşüklüğü ve reaktif azotun çevre üzerine olumsuz etkilerine dikkat çekilerek azot alım etkinliğini artırmaya ve reaktif azotun çevreye olan olumsuz etkilerini azaltmaya yönelik daha önce yapılmış olan çalışmalar ışığında çözüm önerileri sunulması amaçlanmıştır.Anahtar Kelimeler: Azot Alım Etkinliği, Reaktif Azot, Çevre Nitrogen Uptake Efficiency in Plant Production and Negative Effects of Reactive Nitrogen on Environment Muhammet Karaşahin Karabük University, Eskipazar Vocational School, Plant and Animal Production Division AbstractIn agricultural production the amount of plant uptake of applied nitrogen to soil varies according to production management practices and crop species however it is only half. The amount which cannot be used by plants create serious economic losses and causes significant environmental and health problems. The aim of this study is to take attention to lowness of nitrogen uptake efficiency in plant production and negative effects of reactive nitrogen on environment and offers resolution advisory to increase nitrogen uptake efficiency and to reduce the negative effects of reactive nitrogen on environment in the light of earlier studies that are conducted.

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Vegetable Plant Canopy Inhibits Soil Urease Activity and Reduces NH3 Losses Under p-Phenylenediamine (PPD)-Coated Urea Application

Shakeel,

Mahmood,

Fatima

et al. 2024

J Soil Sci Plant Nutr

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Strategies for Managing Soil Nitrogen to Prevent Nitrate-N Leaching in Intensive Agriculture System

Cited by 4 publications

References 57 publications

Extreme Weather Events Affect Agronomic Practices and Their Environmental Impact in Maize Cultivation

Extreme Weather Events Affect Agronomic Practices and Their Environmental Impact in Maize Cultivation

Nitrogen Uptake Efficiency in Plant Production and Negative Effects of Reactive Nitrogen on Environment

Vegetable Plant Canopy Inhibits Soil Urease Activity and Reduces NH3 Losses Under p-Phenylenediamine (PPD)-Coated Urea Application

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