Cropping system

Sl.No.	Variety Paddy	Year of release	Parentage	Duration (days)	Season	Characters	Yield t/ha
1.	TPS -1	1985	IR8/Kattisamba	110-115	Kannipoo	Red bold rice suitable for direct & transplanted condition	5.0
2	TPS-2	1987	IR26/Co40	130-135	Kumbapoo	White bold rice	5.0
3	TPS-3	1993	RP-31-49-2/LMN	135-140	Kumbapoo	Short bold grain, White rice suitable for water logged condition	6.1
4	TPS-4	2006	TP29/ASD16	85-90	Kumbapoo	Short bold grain, White rice suitable for direct seeding & for kannipoo season also	6.0
5	TPS-5	2014	ASD16/ ADT37	118-120	Kannipoo	Short bold grain, White rice. Suitable for first season and late planting in second season	6.13

• Seed rate of 100 kg/ha and a fertilizer dose of 75:45:20 kg NPK/ha was found to be optimum for TPS 1 under semidry direct seeding.
• Butachlor @ 2 kg/ha on 8^th DAS is sufficient for weed control.
• Plant population of 50 plants/m with 100:25:50 kg NPK/ha for medium and long duration varieties for Kanyakumari district.
• Application of N @ 100 kg/ha in four equal splits for long duration varieties increased the grain yield.
• Application of FYM @ 12.5 t/ha + Azospirillum + soil test level fertilizers increased the rice grain yield.
• Application of 50% N as inorganic fertilizer and 25% through FYM or green manure and Azospirillum yielded higher grain yield besides saving of 50% inorganic fertilizer Nitrogen.
• Application of 75% of STL base P2O5 as Super phosphate + green manure at 6.25 t/ha + Phosphobacteria yielded maximum grain yield as equal to 100% of chemical P2O5.
• Application of FYM @ 12.5 t/ha + Azospirillum + ZnSo4 as basal and top dressing of 25% N on 25,45,60^th DAT and 50% potassium on 35^th and 55^th
• The cropping system of Rice-Rice-Bhendi registered the highest gross return of Rs.97,710/ha with a BC ratio of 1.93 as against Rs.63,288/ha with a BC ratio of 1.39 in the existing cropping system of Rice – Rice – Fallow.
• Improved method of rice cultivation viz., line planting with two seedlings / hill coupled with recommended practice significantly recorded higher grain yield of 5552, 5789 kg/ha during Kharif and Rabi respectively.

• Spray application of Chlorantraniliprol @ 0.6 ml/l or soil application of Ferterra 10 kg/ha was effective for the management of yellow stem borer on rice.
• Seed treatment with Pseudomonas fluorescens (Pf1) @ 10 g/kg + one foliar spray with Azoxystrobin  @ 0.2 at 50 per cent flowering for the management of sheath rot and grain discolouration.