Reducing options of ammonia volatilization and improving nitrogen use efficiency via organic and inorganic amendments in wheat ( Triticum aestivum L.)

PeerJ

article

Pooja L. Ramalingappa¹  Manoj Shrivastava¹  Shiva Dhar²  Kalikinkar Bandyopadhyay³  Shiv Prasad¹  Sapna Langyan⁴  Ritu Tomer¹  Ashish Khandelwal¹  Sibananda Darjee¹  Renu Singh¹ 

[1] Division of Environment Science, ICAR-Indian Agricultural Reserach Institute;Division of Agronomy, ICAR-Indian Agricultural Reserach Institute;Division of Physics, ICAR-Indian Agricultural Reserach Institute;Division of Germplasm Evaluation, ICAR-National Bureau of Plant Genetic Resources

关键词: Hydroquinone;    Calcium carbide;    Vesicular arbuscular mycorrhiza;    Azotobacter;    Garlic powder;    Linseed oil;    Pongamia oil;    Nitrous oxide;    Denitrification;    N-(n-butyl) thiophosphoric triamide;   

DOI  :  10.7717/peerj.14965

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Background This study investigates the effect of organic and inorganic supplements on the reduction of ammonia (NH3) volatilization, improvement in nitrogen use efficiency (NUE), and wheat yield. Methods A field experiment was conducted following a randomized block design with 10 treatments i.e., T1-without nitrogen (control), T2-recommended dose of nitrogen (RDN), T3-(N-(n-butyl) thiophosphoric triamide) (NBPT @ 0.5% w/w of RDN), T4-hydroquinone (HQ @ 0.3% w/w of RDN), T5-calcium carbide (CaC2 @ 1% w/w of RDN), T6-vesicular arbuscular mycorrhiza (VAM @ 10 kg ha−1), T7-(azotobacter @ 50 g kg−1 seeds), T8-(garlic powder @ 0.8% w/w of RDN), T9-(linseed oil @ 0.06% w/w of RDN), T10-(pongamia oil @ 0.06% w/w of RDN). Results The highest NH3 volatilization losses were observed in T2 at about 20.4 kg ha−1 per season. Significant reduction in NH3 volatilization losses were observed in T3 by 40%, T4 by 27%, and T8 by 17% when compared to the control treatment. Soil urease activity was found to be decreased in plots receiving amendments, T3, T4, and T5. The highest grain yield was observed in the T7 treated plot with 5.09 t ha−1, and straw yield of 9.44 t ha−1 in T4. Conclusion The shifting towards organic amendments is a feasible option to reduce NH3 volatilization from wheat cultivation and improves NUE.

【 授权许可】

CC BY