Arid
INFLUENCE OF SUBSURFACE TILE DRAINAGE OPERATIONAL PERFORMANCE ON NUTRIENT LOSSES UNDER SEMI-ARID ENVIRONMENT
Khan, Pir Muhammad1; Khan, Muhammad Jamal2; Bakht, Jehan3
通讯作者Bakht, Jehan
来源期刊PAKISTAN JOURNAL OF AGRICULTURAL SCIENCES
ISSN0552-9034
EISSN2076-0906
出版年2015
卷号52期号:1页码:159-167
英文摘要

An appropriate designed subsurface tile drainage system plays an important role in agricultural productivity, reclamation of water logging and also minimizes nutrient losses with better crop management practices. A field study was conducted to find nutrient losses from the subsurface tile drainage system during the year 2011. The tile drainage system was installed under Swabi Salinity Control and Reclamation Project (SCARP) in July, 1997 in the North-West of Pakistan. The study area is being drained by nine subsurface tile drains spaced 100 to 150 m and length ranging from 500 to 700m at design depth of 1.5 m from the ground surface. Drainage water was collected from these tile drains on a monthly basis for the measurement of the drainable amount of macro nutrients. Ammonium, nitrate and potassium losses from unblocked and partially blocked tile drains were 90, 230, 130 g month(-1) ha(-1) and 110, 125 and 144 g month(-1) ha(-1), respectively. Phosphorus losses were 0.53 g month(-1) ha(-1) from unblocked and 0.44 g month(-1) ha(-1) from partially blocked tile drains of the system. Our results also indicated that copper (Cu), iron (Fe) and zinc (Zn) concentrations were considerably higher in blocked (1.65, 8.28 and 1.94 mg kg(-1)) and partially blocked (1.12, 7.49 and 1.76 mg kg(-1)) than unblocked (1.07, 5.96 and 1.65 mg kg(-1)) tile drains command area. In conclusion, it is recommended that over irrigation should be avoided to minimize the nutrient losses and contamination of surface and ground water resources.


英文关键词Sub-surface tile drainage system nutrient losses unblocked and partially blocked tile drains
类型Article
语种英语
国家Pakistan
收录类别SCI-E
WOS记录号WOS:000352364400020
WOS关键词NITRATE ; SOIL
WOS类目Agriculture, Multidisciplinary
WOS研究方向Agriculture
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/189459
作者单位1.Dept Agr Extens Mardan, Kpk, Pakistan;
2.Univ Agr Peshawar, Dept Water Management, Kpk, Pakistan;
3.Univ Agr Peshawar, Inst Biotechnol & Genet Engn, Kpk, Pakistan
推荐引用方式
GB/T 7714
Khan, Pir Muhammad,Khan, Muhammad Jamal,Bakht, Jehan. INFLUENCE OF SUBSURFACE TILE DRAINAGE OPERATIONAL PERFORMANCE ON NUTRIENT LOSSES UNDER SEMI-ARID ENVIRONMENT[J],2015,52(1):159-167.
APA Khan, Pir Muhammad,Khan, Muhammad Jamal,&Bakht, Jehan.(2015).INFLUENCE OF SUBSURFACE TILE DRAINAGE OPERATIONAL PERFORMANCE ON NUTRIENT LOSSES UNDER SEMI-ARID ENVIRONMENT.PAKISTAN JOURNAL OF AGRICULTURAL SCIENCES,52(1),159-167.
MLA Khan, Pir Muhammad,et al."INFLUENCE OF SUBSURFACE TILE DRAINAGE OPERATIONAL PERFORMANCE ON NUTRIENT LOSSES UNDER SEMI-ARID ENVIRONMENT".PAKISTAN JOURNAL OF AGRICULTURAL SCIENCES 52.1(2015):159-167.
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