Sugarcane responses to irrigation and nitrogen in subtropical Iran

Limited information is available on water and nitrogen (N) management of sugarcane (Saccharum officinarum L.) in Khuzestan, southwestern Iran, where this crop is currently and extensively grown under heavy irrigation and N fertilization. Therefore, a field experiment was conducted from September 2000 to March 2002 at the Research Department of Karoon Agro-industry in Khuzestan to determine the effect of four irrigation [irrigation water/cumulative pan evaporation (IW/CPE) ratios of 0.6, 0.8, 1.0, and 1.2)] and four N (0, 86, 172, and 258 kg N ha-1) levels on sugarcane yield and water and N use efficiencies. The experiment was carried out as split-plot arranged in a randomized complete blocks design with four replications. Pan evaporation data was recorded daily using class A open pan. Increased water and N application increased both plant cane crop and sugar yields. The highest sugar yield was obtained under IW/CPE = 1.2 (29 irrigations) and with 172 kg N ha-1  with no significant difference with IW/CPE = 1.0 (25 irrigations) and 86 kg N ha-1, respectively. Higher irrigation and N levels showed a small but not significant reduction in both juice sucrose and purity percentages. Higher N levels significantly increased the N use efficiency (NUE) for cane yield, but NUE for sugar yield was highest at 86 kg N ha-1. Water use efficiency (WUE) increased with higher water application. Thus pan evaporation data and N management can effectively meet both irrigation (IW/CPE = 1.0) and N requirements (86.0 kg ha-1) of sugarcane without any adverse effect on yields and environment and reduces production costs as well.

[1]  R. Green,et al.  Nitrogen-Fertilization Rate and Soil Nitrate Distribution for Microirrigated Sugarcane , 1990 .

[2]  C. Batchelor,et al.  Irrigation research, development and practice in Mauritius , 1990 .

[3]  Gerrit H. de Rooij,et al.  Methods of Soil Analysis. Part 4. Physical Methods , 2004 .

[4]  C. Jones.  A review of evapotranspiration studies in irrigated sugarcane in Hawaii. , 1980 .

[5]  G. P. Meade,et al.  Cane sugar handbook. , 1977 .

[6]  Robert P. Wiedenfeld,et al.  Effects of irrigation and N fertilizer application on sugarcane yield and quality. , 1995 .

[7]  B. Wiedenfeld.  Scheduling water application on drip irrigated sugarcane , 2004 .

[8]  N. G. Inman-Bamber,et al.  Increasing sucrose accumulation in sugarcane by manipulating leaf extension and photosynthesis with irrigation , 2008 .

[9]  R. C. Muchow,et al.  Accumulation of reducing sugars by sugarcane: effects of crop age, nitrogen supply and cultivar , 1996 .

[10]  L. T. Evans.  Nitrogen in crop production: Edited by R.D. Hauck. American Society of Agronomy, Madison, Wisconsin, 1984, 804 pp. US$48.00 ISBN 0-89118-081-8 , 1986 .

[11]  N. Inman-Bamber,et al.  Sugarcane water stress criteria for irrigation and drying off. , 2004 .

[12]  J. Torres.  A simple visual aid for sugarcane irrigation scheduling , 1998 .

[13]  Cade E. Carter,et al.  Subsurface Drainage and Irrigation for Sugarcane , 1973 .

[14]  G. J. Gascho,et al.  Cultivar Dependent Sugarcane Response to Nitrogen1 , 1986 .

[15]  G. Hofman,et al.  Uptake and balance of fertilizer nitrogen applied to sugarcane , 2006 .

[16]  Roland Daniel Hauck.  Nitrogen in crop production : proceedings of a symposium held 25-27 May 1982 at Sheffield, Alabama , 1984 .

[17]  P. Singh,et al.  Water use and yield response of sugarcane under different irrigation schedules and nitrogen levels in a subtropical region , 1994 .

[18]  M. H. Gharineh,et al.  Impacts of rate and split application of N fertilizer on sugarcane quality. , 2009 .

[19]  R. Wiedenfeld.  Water stress during different sugarcane growth periods on yield and response to N fertilization. , 2000 .

[20]  D. Pasternak,et al.  Irrigation of agricultural crops with brackish water. A. Preliminary observations on some winter crops. , 1980 .

[21]  R. C. Muchow,et al.  Effect of nitrogen on the time-course of sucrose accumulation in sugarcane , 1996 .

[22]  S. Shukla,et al.  Optimizing soil moisture regime to increase water use efficiency of sugarcane (Saccharum spp. hybrid complex) in subtropical India , 2007 .

[23]  F. C. Vila.  Saccharum officinarum L.) , 2006 .

[24]  K. T. Ingram,et al.  Nitrogen-Potassium Fertilization and Soil Moisture Effects on Growth and Development of Drip-Irrigated Sugarcane 1 , 1986 .