Variation in Chemical properties of Soil after Harvest of Malt Barley Crop (Hordeum vulgare L.) under different Fertility Levels and Biofertilizers in Sub Tropical Southern Plains and Aravali Hills of Rajasthan

Author: Sonal Athnere, P.C. Chaplot, Pinky Yadav and Sundar Anchra

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Abstract

Soil is the important component of crop production, has numerous functions and vital role in production system. Indiscriminate use of inorganic fertilizers is the major cause for soil salinization, alkalization and soil acidity which ultimately affects the crop yield. To overcome such problems, during the rabi season 2020–21 and 2021–22, a field trial was carried out at the Instructional Farm, Department of Agronomy, Rajasthan College of Agriculture, MPUAT, Udaipur on clay loam soil with low available nitrogen (278.36 to 279.42 kg ha-1), medium available phosphorus (18.73 to 20.39 kg ha-1) and high available potassium status (328.40 to 332.72 kg ha-1) which was slightly alkaline in response with 15 treatment combinations made up of three fertility levels- 50 kg N + 25 kg P2O5 + 15 kg K2O ha-1, 60 kg N+30 kg P2O5 + 20 kg K2O ha-1 and 70 kg N + 40kg P2O5 + 25 kg K2O ha-1 with five biofertilizers i.e. control, Azotobacter, PSB, KMB and Azotobacter + PSB + KMB. The trial was set up in a randomised block design (factorial).As a result of the investigation, after the harvesting of crop, application of 70 kg N+40 kg P2O5 + 25 kg K2O ha-1 recorded maximum available nitrogen (299.18 kg ha-1), available phosphorus (25.57 kg ha-1), available potassium (349.80 kg ha-1) and organic carbon (0.708 %) in soil which was significantly higher over remaining fertility levels. Further, the results showed that seed inoculation with liquid biofertilizers Azotobacter + PSB + KMB significantly enhanced available nitrogen (304.97 kg ha-1), available phosphorus (25.09 kg ha-1) and available potassium (357.44 kg ha-1) in soil after harvest of crop. Thus, the combine application of 70 kg N + 40 kg P2O5 + 25 kg K2O ha-1 along with inoculation of seed with Azotobacter + PSB + KMB proved most effective in elevating nutrient status of soil.

Keywords

Malt barley, available nutrients, biofertilizers and fertility levels

Conclusion

It could be concluded that application of 70 kg N+40 kg P2O5 +25 kg K2O ha-1 along with inoculation of seed with liquid biofertilizers Azotobacter + PSB + KMB proved to be most suitable practice in elevating the soil chemical properties after harvest of malt barley crop.

References

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How to cite this article

Sonal Athnere, P.C. Chaplot, Pinky Yadav and Sundar Anchra (2023). Variation in Chemical properties of Soil After Harvest of Malt Barley Crop (Hordeum vulgare L.) under different Fertility Levels and Biofertilizers in Sub Tropical Southern Plains and Aravali Hills of Rajasthan. Biological Forum – An International Journal, 15(1): 514-518.