Best OFTs
TECHNOLOGY ASSESSMENT
WEED MANAGEMENT
Problem definition: Heavy infestation of weed in paddy crop in loam soil.
Technology Assessed: Weed management in rice through post emergence herbicide Bis-pyribac Sodium
KVK Sultanpur II of eastern plain zone of Uttar Pradesh took up on-farm trial on post emergence weed management in paddy. The on farm trial conducted on loamy soil where several flush of weeds emerged during kharif season. The pre emergence herbicides were incapable for the weed management, therefore, post emergence herbicide Bis-pyribac Sodium was tested under on-farm condition. The results indicated that the use of post emergence herbicide Bis-pyribac sodium 10% SC @ 250 ml/ha reduced the number of weeds per m2 from 16 to 5 and gave 25.75 per cent higher yield over farmers’ practice ie use of pre emergence herbicide application alongwith net profit of Rs 36150 per hectare.
Table: Effect of post em herbicide Bispyribac sodium on weed control of paddy
| Technology Option | No. of trials | Weed infestation (m2) | Yield (q/ha) | Increase in yield (%) | Cost of cultivation (Rs/ha) | Gross return (Rs/ha) | Net Return (Rs/ha) | B:C Ratio |
|---|---|---|---|---|---|---|---|---|
| Technology Option T 1: Pre emergence herbicide butachlor (Farmers Practice) | 16 | 33.20 | - | 39000 | 59760 | 20760 | 1.53 | |
| T 2: Post em herbicide Bispyribac sodium 10% SC 200ml/ha (Recommended Practice) | 05 | 5 | 41.75 | 25.75 | 39000 | 75150 | 36150 | 1.93 |
PEST AND DISEASE MANAGEMENT
Problem definition: Heavy infestation of thrips in onion affecting in a yield loss of 20% and income loss of Rs.12500/ha
Technology Assessed: Thrips management in onion through neem based Azadiractin compound
Onion is an important commercial crop of district Sultanpur. However, there is high incidence of thrips insect resulting in yield loss. KVK conducted on-farm trial to assess the management of insect. The foliar spray of Azadiractin 1.5 EC @ 2.0 ml/lit during the emergence of thrips infestation and repeated two more times after 15 days interval reduced the percentage of pest incidence from 11 to 9 and increased the benefit cost ratio from 1.86 to 1.96 as compared to insecticidal treatment.
Table: Effect of Azadiractin for the management of thrips in onion
| Technology Option | No. of trials | Incidence of thrips (%) | Yield (q/ha) | Increase in yield (%) | Cost of cultivation (Rs/ha) | Gross return (Rs/ha) | Net Return (Rs/ha) | B:C Ratio |
|---|---|---|---|---|---|---|---|---|
| Spray of Dimethoale @ 0.06% (Farmers Practice) | 11 | 212 | - | 91250 | 169600 | 78350 | 1.86 | |
| Spray of Azadiractin 1.5 EC @ 2.0 ml/lit (Recommended Practice) | 5 | 9 | 217 | 02.36 | 88775 | 173600 | 84825 | 1.96 |
Problem definition: Low productivity of bottle gourd due to heavy infestation of Red Pumpkin beetle.
Technology Assessed: Assessment of bio-pesticide against Red Pumpkin beetle in bottle gourd crop
Red pumpkin beetle is major pest in bottle gourd crop during zaid and kharif season in district Sultanpur. An on-farm trial was conducted by KVK Sultanpur during Zaid, 2019 to assess the management of red pumpkin beetle through neem based bio pesticide Azadiractin. The foliar spray of Azadiractin 1.5 EC @ 1.0 ml/lit during the emergence of pest infestation and repeated two more times after 15 days interval reduced the number of pest per m2 from 3 to 2 and increased the benefit cost ratio from 1.83 to 2.02 as compared to insecticidal treatment.
Table: Effect of Azadiractin for the management of red pumpkin beetle in bottle gourd
| Technology Option | No. of trials | No. of pest per m2 | Yield (q/ha) | Increase in yield (%) | Cost of cultivation (Rs/ha) | Gross return (Rs/ha) | Net Return (Rs/ha) | B:C Ratio |
|---|---|---|---|---|---|---|---|---|
| Spray of Dichlorovos 76% EC @ 0.06% two spray fortnightly interval (Farmers Practice) | 3 | 176 | -- | 55175 | 101200 | 46025 | 1.83 | |
| Spray of Azadiractin 1.5 EC @ 1.0 ml/lit (Recommended Practice) | 5 | 2 | 180 | 02.27 | 51250 | 103500 | 52250 | 2.02 |