Vol. 11, Special Issue 2 (2022)

Author(s):
Monika, Makhan Lal, Amit Verma, Khyati Singh and Tejinder Singh

Abstract:
An experiment was conducted at Seed Research Area of Department of Vegetable Science, Chaudhary Charan Singh Haryana Agricultural University, Hisar during spring-summer season of 2019-20. The objectives of the investigation were to study the effect of manure and biofertilizers on growth and seed yield parameters of carrot seed crop. The experiment involved fourteen treatments, viz., T1- Absolute control, T2- RDF (N:P:K 80:40:40 kg/ha), T3- Farm yard manure 25t/ha, T4- Poultry manure 4t/ha, T5- Vermicompost 8t/ha, T6- FYM 12.5t/ha+ PM 2t/ha, T7- FYM 12.5t/ha+ PM 2t/ha, T8- FYM 12.5t/ha+ PM 2t/ha+ VC 4t/ha, T9- FYM 12.5t/ha+ PM 2t/ha+ Azo+PSB, T10-FYM 12.5t/ha+ Azo+PSB, T11- FYM 12.5t/ha+ VC 4t/ha+ Azo+PSB, T12- VC 8t/ha+ Azo+PSB, T13- PM 4t/ha+ Azo+PSB and T14- FYM 12.5t/ha+ PM 2t/ha+ VC 4t/ha + Azo+PSB and was laid out in Randomized Block Design with three replications. Maximum plant growth, seed yield and yield attributing characters, viz., Sprouting percentage, days to 50% sprouting, plant height, umber of secondary umbels, number of umblets per umbel, number of seeds per umbel, number of seeds per umblets, seed yield/umbel (g) and seed yield (q ha^-1) of carrot cv. Hisar Gairic was obtained with treatment T14 having combination of all the three manure and biofertilizers (FYM 12.5t/ha+ PM 2t/ha+ VC 4t/ha+ Azo+PSB), which was found at par with treatments T8, T9, T11 and T2. Hence, application of farm yard manure @ 12.5 t/ha along with poultry manure @ 2 t/ha and vermicompost @ 4t/ha + Azo+ PSB is recommended of carrot seed production in northern plains of India.