Abstract
A rainfed experiment was conducted at two contrasting rainfall situations of two different states of South India viz., Hyderabad (Telangana) and Tirupathi (Andhra Pradesh) during 2007-08 to standardize the optimum sowing time, plant densities and fertiliser dose for horsegram variety CRIDA 18R released and recommended for cultivation in South India. Results showed that the second fortnight of August and first fortnight of November were suitable optimum times of sowing in Hyderabad and Tirupathi regions respectively due to receipt of rainfall from South West monsoon and North East monsoon at respective locations. Plant densities of 3.33 lakh per hectare with or without 10N + 20P2O5 fertilizer dose yielded higher seed in both the regions. However when the sowing was delayed, wisest decision might be to continue the plant densities of 3.33 lakh population per hectare with or without fertilizer. The results revealed that CRIDA-18R responded to fertilizer up to 10 N +20 P2O5 kg ha-1 with 3.33 lakh plant density but for the varied optimum time of sowing at two different centers with occurrence of favourable rainfall situations, revealing a very flexible sowing time for CRHG-18R in South India.
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