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Assessment of different methods of rice (Oryza sativa. L) cultivation affecting growth parameters, soil chemical, biological, and microbiological properties, water saving, and grain yield in rice–rice system

OAR@ICRISAT

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Relation http://oar.icrisat.org/6663/
http://dx.doi.org/10.1007/s10333-013-0362-6
10.1007/s10333-013-0362-6
 
Title Assessment of different methods of rice (Oryza sativa. L) cultivation affecting growth parameters, soil chemical, biological, and microbiological properties, water saving, and grain yield in rice–rice system
 
Creator Gopalakrishnan, S
Mahender Kumar, P
Humayun, P
Srinivas, V
Ratna Kumari, B
Vijayabharathi, R
Singh, A
Surekha, K
Padmavathi, Ch
Somashekar, N
Rao, P R
Latha, P C
Subba Rao, L V
Babu, V R
Viraktamath, B C
Goud, V V
Loganandhan, N
Gujja, B
Rupela, Om
 
Subject Soil Science
 
Description Field experiments were conducted at DRR farm located at ICRISAT, Patancheru, in sandy clay loam soils during four seasons, Kharif 2008, Rabi 2008–2009, Kharif 2009 and Rabi 2009–2010, to investigate growth parameters, water-saving potential, root characteristics, chemical, biological, and microbial properties of rhizosphere soil, and grain yield of rice (Oryza sativa L.) by comparing the plants grown with system of rice intensification (SRI) methods, with organic or organic + inorganic fertilization, against current recommended best management practices (BMP). All the growth parameters including plant height, effective tillers (10–45 %), panicle length, dry matter, root dry weight (24–57 %), and root volume (10–66 %) were found to be significantly higher with in SRI-organic + inorganic over BMP. With SRI-organic fertilization, growth parameters showed inconsistent results; however, root dry weight (3–77 %) and root volume (31–162 %) were found significantly superior compared to BMP. Grain yield was found significantly higher in SRI-organic + inorganic (12–23 and 4–35 % in the Kharif and Rabi seasons, respectively), while with SRI-organic management, yield was found higher (4–34 %) only in the Rabi seasons compared to BMP. An average of 31 and 37 % of irrigation water were saved during Kharif and Rabi seasons, respectively, with both SRI methods of rice cultivation compared to BMP. Further, total nitrogen, organic carbon%, soil dehydrogenase, microbial biomass carbon, total bacteria, fungi, and actinomycetes were found higher in the two SRI plots in comparison to BMP. It is concluded that SRI practices create favorable conditions for beneficial soil microbes to prosper, save irrigation water, and increase grain yield.
 
Publisher Springer Verlag
 
Date 2014
 
Type Article
PeerReviewed
 
Format application/pdf
application/pdf
 
Language en
en
 
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Identifier http://oar.icrisat.org/6663/7/Gopalakrishnan_etal%20_postprint_2013.pdf
http://oar.icrisat.org/6663/13/PWE_12_79-87_2014.pdf
Gopalakrishnan, S and Mahender Kumar, P and Humayun, P and Srinivas, V and Ratna Kumari, B and Vijayabharathi, R and Singh, A and Surekha, K and Padmavathi, Ch and Somashekar, N and Rao, P R and Latha, P C and Subba Rao, L V and Babu, V R and Viraktamath, B C and Goud, V V and Loganandhan, N and Gujja, B and Rupela, Om (2014) Assessment of different methods of rice (Oryza sativa. L) cultivation affecting growth parameters, soil chemical, biological, and microbiological properties, water saving, and grain yield in rice–rice system. Paddy and Water Environment, 12. pp. 79-87. ISSN 1611-2504