| Issue Date | Title | Author(s) |
| 2002 | Assessment of 2, 4- D residues in the major rice soils of Kerala | Chinnamma, N P; Durga Devi, K M |
| 2000 | Carbofuran residues in banana | Chinnamma, N P; Vijayan, A P |
| 1992 | Effect of long term application of manures and fertilisers on soil properties, utilization efficiency of nutrients and quality of rice | Chinnamma, N P; Padmam, M K |
| 1973 | Effect of pre-treatment of lemongrass (Cymbopogon flexuosus, staffs on the yield and citral content of oil | Chinnamma, N P; Menon, P K Q |
| 1993 | Evaluation of methods to improve the nitrogen use efficiency of urea in rice | Chinnamma, N P; Sapheena, K S |
| 1995 | Fertility investigations and taxonomy of the soils of regional agricultural research station, Pattambi | Deepa, K P; Chinnamma, N P |
| 1985 | Influence of applied nutrients and stage of harvest on the yield and physicochemical properties of essential oil of palmarosa (Cymbopogon martini Stapf var. motia) | Aiyer, R S; Chinnamma, N P |
| 1990 | Quality of oil of clocimum (Ocimum gratissimum Linn.) as influenced by stages of harvest and shade | Chinnamma, N P; Rekha R Pillai |
| 1996 | Seasonal variations in the nutrient transformation in the lateritic alluvial rice soils of permanent manuurial trials | Chinnamma, N P; Dineskumar, K K |
| 1975 | Studies on a manure supplement containing secondary and trace elements prepared from sea water (Sagar) on the growth, yield, quality and absorption of nutrients by rice | Money, N S; Chinnamma, N P |
| 1997 | Suitability of sul-po-mag as a potassium cum magnesium fertilizer for banana in Kerala | Chinnamma, N P; Anila Mathew |
