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Growth and productivity of soybean as influenced by planting methods, biofertilizers and nitrogen levels
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View Archive Info| Field | Value | |
| Title |
Growth and productivity of soybean as influenced by planting methods, biofertilizers and nitrogen levels
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| Creator |
Virk, Harpreet Kaur
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| Contributor |
Guriqbal Singh
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| Subject |
Biofertilizers
planting methods soybean Agronomy Agricultural Meterology |
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| Description |
The investigation entitled, “Growth and productivity of soybean as influenced by planting methods, biofertilizers and nitrogen levels” was conducted at the Research Farm of Pulses Section, Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, during kharif 2014 and 2015. The soil of the experimental site was loamy sand in texture with normal soil reaction and electrical conductivity, low in organic carbon & available nitrogen, medium in available phosphorus and potassium. Under the present investigation, two experiments were conducted after combine harvested wheat and both were laid out in factorial randomized complete block design replicated four times using the soybean variety SL 958. The Experiment I and II were sown on 5 June during both the years. In Experiment I, three planting methods (Happy Seeder sowing, Straw Chopper + Zero Tillage sowing and Conventional sowing) and three biofertilizer treatments [Bradyrhizobium, plant growth promoting rhizobacteria (PGPR), Bradyrhizobium + PGPR] were studied. Experiment II had three planting methods (Happy Seeder sowing, Straw Chopper + Zero Tillage sowing and Conventional sowing) and four nitrogen levels (control, 75%, 100% and 125% recommended N). The recommended dose of nitrogen was 39.05 kg ha-1. Results revealed that Happy Seeder sowing significantly improved the growth, pods plant-1, biological, straw and seed yields than conventional sowing. Happy Seeder sowing and Straw Chopper + Zero Tillage sowing improved the emergence count and symbiotic parameters by reducing the maximum soil temperature. On the basis of pooled analysis, in first experiment, Happy Seeder sowing provided 14.6 and 17.0% higher seed yield of soybean than Straw Chopper + Zero Tillage and conventional sowing, respectively. In second experiment, 16.1 and 22.9% increase in seed yield was recorded under Happy Seeder sowing as compared to Straw Chopper + Zero Tillage and conventional sowing, respectively. Happy Seeder sowing recorded significantly higher seed yield, nutrient uptake, net returns and B:C ratio than Straw Chopper + Zero Tillage and conventional sowing. Biofertilizers had no significant effect on the growth, symbiotic parameters, yield attributing characters, yield and nutrient uptake. Application of 100% recommended N improved significantly the growth parameters, seed yield, nutrient uptake, net returns, B:C ratio and nitrogen use efficiencies (agronomic efficiency and apparent recovery). Soil biological properties were improved by Happy Seeder sowing and Straw Chopper + Zero Tillage sowing. Therefore, it can be concluded that soybean can be sown successfully with Happy Seeder without any preparatory tillage after the combine harvesting of wheat along with recommended biofertilizer inoculation and 100% recommended nitrogen. |
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| Date |
2016-09-13T12:12:46Z
2016-09-13T12:12:46Z 2016 |
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| Type |
Thesis
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| Identifier |
http://krishikosh.egranth.ac.in/handle/1/76488
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| Language |
en
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| Format |
application/pdf
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| Publisher |
Punjab Agricultural University, Ludhiana
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