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Planting density and nutrient management in kharif maize (Zea mays L.) hybrids
| Content Provider | KrishiKosh-Indian National Agricultural Research System |
|---|---|
| Advisor | Mahapatra, Anita |
| Researcher | Nayak, Jitendra Kumar |
| Abstract | A field experiment was conducted to study the effect of Planting density and nutrient management in kharif maize (Zea mays L.) hybrids at the Instructional Livestock Farm, Orissa University of Agriculture and Technology, Bhubaneswar during kharif 2017. The eighteen treatment combinations comprise of main plot, three varieties V1- OMH 14-27, V2 - Hishel, V3 - P 3441, sub plot –two planting density i.e. D1- 60 cm x 20 cm ( 83,333 plants/ha) and D2- 50 cm x 20 cm (100000 plants/ha), sub-sub plot three nutrient levels i.e N1- RDF(120:60 :60 kg N, P2O5, K2O/ha), N2- STCR (124:15:116 kg N, P2O5, K2O/ha), N3- SSNM (140:37:86 kg N, P2O5, K2O/ha) with three replications. The soil of the experimental site was loamy sand in texture, acidic in reaction (pH 4.47), medium in available nitrogen (312 kg/ha), high in available phosphorus (104 kg/ha) and low in potassium (64 kg/ha). The investigation revealed that significantly maximum plant height and LAI was obtained in V1 (183.6 cm, 2.07), D2 (177.8 cm, 1.99), N2 (179.9 cm, 2.03). Maximum cob length, cob girth, number of rows per cob, no. of grains /row, test weight was obtained in V1 (17.07 cm, 15.41 cm, 14.8, 30.26, 279.29 g), D1 (16.77 cm, 14.80cm, 14.0, 30.76, 276.22 g), N2 (17.48 cm, 15.36 cm, 15.0, 30.27 and 280.78 g) respectively. Highest grain yield and stover yield was obtained in V1 (6.88 t ha-1, 9.63 t ha-1), D2 (6.86 t ha-1, 9.53 t ha-1), N2 (7.02 t ha-1, 9.68 t ha-1). Highest N, P, K uptake in grain was obtained in V1 (91.08, 26.69, 20.41 kg/ha), D2 (88.76, 26.27, 20.01 kg/ha), N2 (91.35, 26.98, 20.66 kg/ha) respectively. Highest N, P, K uptake in stover was obtained in V1 (42.48, 18.91, 139.74 kg/ha), D2 (41.85, 18.37, 137.38 kg/ha), N2 (42.68, 18.80, 139.60 kg/ha) respectively. In the post harvest soil analysis, it was found that the available N, P2O5, K2O status was highest in Hishel variety (292.6, 98.6 and 65.8 kg ha-1), densityD1 with spacing 60 cm x 20 cm (292.4, 97.9 and 64.5 kg ha-1) and in RDF (304.7, 95.7 and 63.6 kg ha). Cost of cultivation was lowest in V1 (Rs. 37382/ha), D1 (Rs. 38932/ha), N2 (Rs. 38880/ha). Gross return and net return was highest in V1(Rs.1,06,006 and Rs.68,624), D2(Rs. 1,05,495 and Rs. 65,702) V1(Rs.1,07,989 and Rs. 69,109). Benefit: cost ratio was highest in V1 (2.84), D2 (2.66), N2 (2.78). Interaction effect among variety, planting density and nutrient management was non- significant. |
| Page Count | 104 |
| File Size | 5111015 |
| File Format | |
| Language | English |
| Publisher | Ouat |
| Publisher Place | Bhubaneswar |
| Access Restriction | Open |
| Subject Keyword | Agronomy Planting Density |
| Content Type | Text |
| Educational Degree | Master of Science (M.Sc.) |
| Resource Type | Thesis |
