Crop Improvement
| 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 |
Crop management
- 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 8th 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 25,45,60th DAT and 50% potassium on 35th and 55th
- 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.
Crop Protection
- 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.