Effect of different sowing methods and herbicides on growth and yield of wheat (Triticum aestivum L.) in South-East Bihar
| dc.contributor.advisor | Singh, Rajesh | |
| dc.contributor.author | SINGH, PRAMOD KUMAR | |
| dc.date.accessioned | 2017-12-07T08:45:27Z | |
| dc.date.available | 2017-12-07T08:45:27Z | |
| dc.date.issued | 2017 | |
| dc.description | Ph.d. thesis | en_US |
| dc.description.abstract | A field experiment was carried out to determine the effect of different methods of sowing and herbicide application on growth and yield of wheat (Triticum aestivum L.) during rabi season of 2013-14 and 2014-15 at Krishi Vigyan Kendra, Jamui, Bihar which is situated between N 24050’502” latitude, E 86018’290” longitude and at an altitute of 79 m above mean sea level. The experiment was laid out in Randomized Block Design with two methods of sowing viz. Zero tillage and Conventional tillage and thirteen herbicide treatments, each replicated thrice. The treatment combinations of herbicides were W1- weedy check (control), W2- weed free, W3- 2,4 – D Na salt at 0.5 kg ha-1, W4- Isoproturon at 1.0 kg ha-1, W5- 2,4 – D Na salt at 0.5 kg ha-1 + Isoproturon at 1.0 kg ha-1, W6- Clodinafop at 60 g ha-1, W7- Carfentrazone at 20 g ha-1,W8- Clodinafop at 60 g ha-1 + Carfentrazone at 20 g ha-1, W9- Clodinafop at 50 g ha-1 + Carfentrazone at 20 g ha-1,W10- Sulfosulfuron at 25 g ha-1, W11- Metsulfuron at 4 g ha-1,W12- Sulfosulfuron at 25 g ha-1 + Metsulfuron at 4 g ha-1 and W13- Sulfosulfuron at 25 g ha-1 + Metasufuron at 3 g ha-1. The soil of the experimental field was sandy loam in texture having available nitrogen 250.7 Kg ha-1, available phosphorus 31.4 Kg ha-1 and available potassium 176.5 Kg ha-1 having soil reaction pH (6.78). The variety used in the experiment was PBW- 502 at a seed rate of 125 Kg ha-1. In the experimental field the major weed flora consisted of Anagallis arvensis L.,Melilotus indica L., Chenopodium album L., Convolvulus arvensis L., Melilotus alba L., Vicia sativa L. among broad leaved weeds, Phalaris minor Retz., Avena ludoviciana L. among grasses and Cyprus rotundus L. as sedges. All weed control treatments recorded significantly lesser weed density and dry matter of weeds than weedy check. Among the herbicides, Sulfosulfuron at 25 g ha-1 + Metsulfuron at 4 g ha-1 was found to be the best herbicide for controlling weed population. The pooled value recorded 8.46 and 3.29 number m-2 at 60 and 90 DAS and resulting in lowest weed dry weight (4.63 and 1.16 g) followed by Clodinafop at 60 g ha-1 + Carfentrazone at 20 g ha-1 and both these combination of herbicides were significantly superior over rest of the herbicides. Among sowing methods, weed control efficiency (46.41 and 89.62 at 60 and 90 DAS) was higher in zero tillage treatments than conventional treatments in both the years of investigation. ZT + herbicides application of Sulfosulfuron + Metsulfuron as post emergence recorded maximum WCE and lower weed index (WI) in both the years of investigation. Zero tillage recorded significantly higher wheat crop growth parameters as per pooled at 90 DAS viz. plant height (89.62 cm), number of tillers (86.17) and dry matter accumulation (49.30 g). Higher crop growth rate and relative growth rate was also recorded under zero tillage than under conventional tillage. Herbicides in combination were found to be more effective in checking weed population than single application of herbicides. Tillage methods and weed management practices significantly influenced yield attributes in both the years of investigation. Zero tillage method of sowing and application of Sulfosulfuron at 25 g ha-1 + Metsulfuron at 4 g ha-1 recorded higher yield attributes viz. no. of effective tillers (104.99 running-1 row meter), spike length (10.97 cm), no. of grains spike-1 (54.13) and test weight (41.69 g) than conventional tillage treatments with same combination of herbicides. Maximum grain yield (4.25 t ha-1) and straw yield (6.36 t ha-1) of wheat was recorded in zero tillage was significantly higher than that recorded under conventional tillage. Grain yield obtained under zero tillage + Sulfosulfuron 25 g ha-1 + Metsulfuron application 4 g ha-1 was (26.48%) higher than conventional tillage with same combination of herbicides. Wheat sown by zero tillage method of sowing + Sulfosulfuron at 25 g ha-1 + Metsulfuron at 4 g ha-1 recorded maximum gross return ( Rs. 91,464.92 ) , net return (Rs. 63,379.92) and BC ratio (2.25 ). | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810037181 | |
| dc.keywords | Wheat (Triticum aestivum), sowing methods, Zero tillage, conventional tillage, 2,4 D, Isoproturon, Carfentrazone, Clodinafop, Sulfosulfuron and metsulfuron. | en_US |
| dc.language.iso | en | en_US |
| dc.pages | 238p. | en_US |
| dc.publisher | DEPARTMENT OF AGRONOMY NAINI AGRICULTURAL INSITUTE SAM HIGGINBOTTOM UNIVERSITY OF AGRICULTURE, TECHNOLOGY & SCIENCES | en_US |
| dc.research.problem | Effect of different sowing methods and herbicides on growth and yield of wheat (Triticum aestivum L.) in South-East Bihar | en_US |
| dc.sub | Agronomy | en_US |
| dc.subject | null | en_US |
| dc.theme | Effect of different sowing methods and herbicides on growth and yield of wheat (Triticum aestivum L.) in South-East Bihar | en_US |
| dc.these.type | Ph.D | en_US |
| dc.title | Effect of different sowing methods and herbicides on growth and yield of wheat (Triticum aestivum L.) in South-East Bihar | en_US |
| dc.type | Thesis | en_US |