Effect of conservation tillage, residue and nitrogen levels on soil nitrogen fractions and their contributions in nitrogen uptake in castor (Ricinus communis)

D SUMA CHANDRIKA; K L SHARMA; S VIDYAVATHI; MUNNALAL; T SATISH KUMAR; K USHA RANI

doi:10.56093/ijas.v86i4.57456

Authors

D SUMA CHANDRIKA Central Research Institute for Dryland Agriculture, Saidabad P O Santoshnagar, Hyderabad, Telangana 500 059
K L SHARMA Central Research Institute for Dryland Agriculture, Saidabad P O Santoshnagar, Hyderabad, Telangana 500 059
S VIDYAVATHI Central Research Institute for Dryland Agriculture, Saidabad P O Santoshnagar, Hyderabad, Telangana 500 059
MUNNALAL Central Research Institute for Dryland Agriculture, Saidabad P O Santoshnagar, Hyderabad, Telangana 500 059
T SATISH KUMAR Central Research Institute for Dryland Agriculture, Saidabad P O Santoshnagar, Hyderabad, Telangana 500 059
K USHA RANI Central Research Institute for Dryland Agriculture, Saidabad P O Santoshnagar, Hyderabad, Telangana 500 059

https://doi.org/10.56093/ijas.v86i4.57456

Keywords:

Alfisol, Castor yield, Conservation tillage, N uptake, Organic N fractions

Abstract

This experiment was conducted in rainfed semi-arid tropical Alfisol at Hayathnagar Research Farm of Central Research Institute for Dryland Agriculture, Hyderabad, India, during the period 1995 to 2014 to study the long-term effect of conservation agricultural practices on organic and inorganic N fractions in soil, their contribution to available N pool and N uptake in castor (Ricinus communis L.). The experiment was conducted in a strip split-split plot design with conventional tillage (CT) and minimum tillage (MT) as main factors, surface application of sorghum stover @ 2 tonnes/ha (SS), fresh gliricidia loppings @ 2 tonnes/ha (GL) and ‘no’ residue (NR) as sub-factors and levels of N, viz. 0 (N0), 30 (N30), 60 (N60) and 90 (N90) kg N/ha as sub-sub factors. The results of the study revealed that increasing N levels influenced exchangeable ammonical N and nitrate N. Practice of conservation tillage, application of residues and nitrogen significantly influenced the hydrolysable organic N fractions in the soil. Among these, aminoacid N, hexosamine N, hydrolyzable NH ₄ + and unidentified N constituted 52%, 8%, 13% and 27% of total hydrolysable N. Linear regression relationship between castor yield and total soil N and N uptake (R2 = 0.998) was found significant. Further, inter correlations between N fractions indicated free mobility among the N fractions. Hence, the build up of N in these pools can be significantly influenced by adoption of appropriate conservation agricultural practices on long term basis in rainfed Alfisols which are highly deficient in available soil N.

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References

Appel T K and Mengel K. 1993. Nitrogen fractions in sandy soils in relation to plant nitrogen uptake and organic matter incorporation. Soil Biology and Biochemistry 25: 685–91. DOI: https://doi.org/10.1016/0038-0717(93)90108-N

Bremner J M. 1965. Methods of Soil Analysis, Part II, pp 1 179- 1 237. Black C A (Ed.). American Society of Agronomy, Madison, Wisconsin, USA.

Duraiswamy P. 1992. Efficacy of fertilizer nitrogen with and without coir pith and biofertilizers on role and inter cropped sorghum – maize – soyabean cropping sequences. Ph D thesis, Tamilnadu Agriculture University, Coimbatore.

Franzluebbers A J, Hons F M and Zuberer D A. 1995. Tillage and crop effect on seasonal soil carbon and nitrogen dynamics. Soil Science Society of American Journal 59: 1 618–24. DOI: https://doi.org/10.2136/sssaj1995.03615995005900060016x

Jackson M L. 1973. Soil Chemical Analysis, pp 38–204. Prentice Hall of India Pvt Ltd, New Delhi.

Luce M S, Whalen J K, Ziadi N, Zebarth B J and Chantigny M H. 2014. Labile organic nitrogen transformations in clay and sandy-loam soils amended with 15N-labelled faba bean and wheat residues. Soil Biology & Biochemistry 68 : 208–18 DOI: https://doi.org/10.1016/j.soilbio.2013.09.033

Malhi S S, Lemkeb R, Wanga Z H, Baldev S and Chhabra C. 2006. Tillage, nitrogen and crop residue effects on crop yield, nutrient uptake, soil quality, and greenhouse gas emissions. Soil and Tillage Research 90 (1-2): 171–83. DOI: https://doi.org/10.1016/j.still.2005.09.001

Sammi Reddy K, Singh M, Tripathi A K, Singh M V and Saha M N. 2003. Changes in amount of organic and inorganic fractions of nitrogen in an Eutrochrept soil after long-term cropping with different fertilizer and organic manure inputs. Journal of Soil Science and Plant Nutrition 166: 232–8. DOI: https://doi.org/10.1002/jpln.200390034

Sharawad I M and Dhyan Singh. 2005. Soil Nitrogen Fractions Under Maize - Wheat - Cowpea Cropping Sequence Under Long Term Fertilizer Use Karnataka. Journal of Agriculture Science 18 (2): 357–63.

Sihag D, Singh J P, Mehta D S and Bhardwaj K K. 2005. Effect of integrated use of inorganic fertilizers and organic materials on the distribution of different forms of nitrogen and phosphorus in soil. Journal of the Indian Society of Soil Science 53: 80–4.

Sekhon K S, Jai Pal Singh and Dalel Singh Mehla. 2011 Long- term effect of manure and mineral fertilizer application on the distribution of organic nitrogen fractions in soil under a rice– wheat cropping system. Archives of Agronomy and Soil Science 57(7): 705–14. DOI: https://doi.org/10.1080/03650340.2010.489555

Sharma K L, Bajaj J C, Das S K, Rao, U M B and Ramalingaswami K. 1992. Nutrient transformation in soil due to addition of organic manure and growing crops. Fertilizer Research 32 (3): 303–11. DOI: https://doi.org/10.1007/BF01050367

Shilpashree V M, Chidanandappa H M, Jayaprakash R and Punitha B C. 2012. Effect of integrated nutrient management practices on distribution of nitrogen fractions by maize crop in soil. Indian Journal of Fundamental and Applied Life Sciences 2 (1): 38– 44.

Tang J X, Jun L X, Zhang, Fu-Suo and Christie P. 2006. Effect of long-term fertilization on organic nitrogen forms in a calcareous alluvial soil on the North China Plain. Pedosphere 16(2): 224– 9. DOI: https://doi.org/10.1016/S1002-0160(06)60047-7

Wienhold B J and Halvorson A D. 1999. Nitrogen mineralization responses to cropping, tillage, and nitrogen rate in the Northern Great Plains. Soil Science Society of American Journal 63: 192–6. DOI: https://doi.org/10.2136/sssaj1999.03615995006300010027x

Yadav M D and Singh K D. 1991. Transformation of applied nitrogen in relation to its availability to sugarcane in a calcareous soil. Journal of Indian Society of Soil Science 39(6): 292–7.