Knowledge Resource Center for Ecological Environment in Arid Area
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
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ISSN | 0552-9034 |
EISSN | 2076-0906 |
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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