REFERENCES
- Beaton , J. D. , Burns , G. R. and Platou , J. 1968 . “ Determination of sulfur in soils and plant material ” . In Technical Bulletin 14 , Washington, DC : The Sulfur Institute .
- Cameron , S. H. , Muller , R. Y. , Wallace , A. and Sartori , E. Influence of age of leaf, season of growth and fruit production on the size and inorganic composition of Valencia orange leaves . Proceedings of American Society of Horticulture Science , Vol. 60 , pp. 45 – 50 .
- Chadha , K. L. 2002 . Handbook of Horticulture , New Delhi : Indian Council of Agriculture Research .
- Chahill , B. S. , Dhatt , A. S. and Singh , R. 1988 . Standardization of foliar sampling technique in Kinnow Mandarin . Punjab Journal of Horticulture , 28 : 118 – 124 .
- Chapman , H. D. 1949 . Citrus leaf analysis . California Agriculture , 3 ( 11 ) : 10 – 14 .
- Chapman , H. D. and Pratt , P. F. 1961 . Methods of Analysis for Soil Plant and Waters , Berkley, CA : University of California, Division of Agriculture .
- Dey , J. K. and Singh , D. D. 1998 . Nutritional status of healthy and declining citrus (Citrus reticulata) orchards . Indian Journal of Agriculture Science , 68 : 139 – 143 .
- Haas , A. R. C. 1945 . Influence of rootstock on the composition of citrus leave sand rootlets . Soil Science , 60 : 445 – 461 .
- Isaac , R. A. and Johnson , W. C. 1976 . Determination of total nitrogen in plant tissue . Journal of the Association of Official Analytical Chemists , 59 : 98 – 100 .
- Jones , J. B. Jr. 1985 . A Laboratory Guide of Exercises for Conducting Soil Tests and Plant Analysis , Athens, GA : Benton Laboratories .
- Kumar , B. , Mistry , N. C. , Singh , B. and Gandhi , C. P. 2009 . “ Horticulture database 2008 ” . Gurgaon, , India : National Horticulture Board, Ministry of Agriculture, Government of India .
- Mandal , C. , Mandal , D. K. , Srinivas , C. V. , Seghal , J. and Velayuthum , M. 1999 . “ Soil and Climatic database for crop planning in India ” . Nagpur : National Bureau of Soil Survey and Land use Planning, Indian Council of Agriculture Research .
- Nair , P. C. S. and Mukherjee , S. K. 1970 . Studies of zinc deficiency in citrus. I. Causes of seasonal occurrence of zinc deficiency . Horticulture Research , 10 : 1 – 13 .
- Patil , B. S. , Hulmani , N. C. and Nalawadi , U. G. 1989 . Leaf macronutrient composition of Tahiti lime as influenced by different rootstocks . Journal of Maharashtra Agricultural University , 14 : 359 – 360 .
- Sema , A. , Kar , P. L. and Sanyal , D. 1999 . Influence of flushes, age of leaf and types of shoot on the fluctuation of foliar micronutrient level in Assam lemon . Horticulture Journal , 12 : 13 – 19 .
- Smith , P. F. 1966 . “ Leaf analysis of Citrus ” . In Temperate to Tropical Fruit Nutrition , Edited by: Childers , N. F. 208 – 228 . New Brunswick, NJ : Rutgers University .
- Smith , P. F. and Reuther , W. Seasonal Changes in Valencia orange trees. I. changes in leaf dry weight, ash and micronutrient element . Proceedings of American Society of Horticulture Science , Vol. 55 , pp. 61 – 72 .
- Sonkar , R. K. 2001 . “ Citrus rootstocks ” . In Citrus , Edited by: Singh , S. and Naqvi , S. A. M. H. 119 – 134 . Lucknow, , India : IBD Publishers .
- Srivastava , A. K. , Ram , L. , Huchche , A. D. , Kholi , R. R. and Dass , H. C. 1994 . Standardization of leaf sampling technique in Nagpur mandarin under sub humid tropical climate . Indian Journal of Horticulture , 51 : 32 – 36 .