Effect of Nano DAP on Growth and Yield of Fenugreek (Trigonella foenum-graecum L.)

A field experiment entitled “Effect of Nano DAP on Growth and Yield of Fenugreek (Trigonella foenum-graecum L.)” was conducted during rabi, 2024-25 at Instructional Farm, School of Agricultural Sciences, Dabok, Udaipur to find out the effect of nano DAP on growth, yield and quality of fenugreek, to explore whether application of nano DAP can fulfil the recommended dose of fertilizers and to work out an economically viable treatment. The experiment consisted of 12 treatment combinations including RDF (50, 75 and 100%), nano DAP 6 ml l-1 (one and two spray) in combination or alone and control which were evaluated under randomized block design with 3 replications. The findings showed that the highest values for growth attributes viz., plant height at 30, 60, 90 DAS and harvest, dry matter accumulation at and number of branches per plant as well as yield attributes and yield viz., number of pods per plant, pod length, number of seeds per pod, test weight, seed and biological yield (1829 and 6616 kg ha-1) were recorded with the application of treatment T12 [100% RDF + Nano DAP (6 ml l-1) two spray] which was statistically at par with T11 [100% RDF + Nano DAP (6 ml l-1) one spray]. Fenugreek crop recorded highest chlorophyll content with the application of treatment T12 [100% RDF + Nano DAP (6 ml l-1) two spray]. The aforesaid treatment also fetched highest net return (₹105741 ha-1) contrary highest B-C ratio (3.79) was recorded under treatment T10 (100% RDF). Therefore, application of 100% RDF + Nano DAP (6 ml l-1) two spray may be recommended for fenugreek to obtain higher yield and net returns.