Sagare, B.N.SONUNE, BHAGWAN ANANDA2020-09-092020-09-092002-06-29SONUNE,BHAGWAN ANANDA. (2002).Evaluation Of Gypsum Bed Technique For Irrigating Cotton Grown In Sodic Vertisols Of Purna Valley In Vidarbha Region.Department Of Agricultural Chemistry And Soil Science.Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra. Ph.D.(2002).Print.183P.(Unpublished).https://krishikosh.egranth.ac.in/handle/1/5810151047enThesis