1. Potassium deficiency in rice and wheat in relation to soil type and fertility status;Goswami;Indian Society of Soil Science, Bulletin,1976
2. Soil analysis methods as used in Iowa State College Soil Testing Laboratory;Hanway;Bulletin,1952
3. Balanced fertilizer use for maximizing return from wheat on cultivator fields;Kanwar;Fertilizer News,1972
4. Economics of fertilizer use in rice in farmers fields;Kanwar;Fertilizer News,1973