Adaptation of green manure legumes to adverse conditions in rice lowlandsBECKER, M; LADHA, J. K.Biology and fertility of soils. 1996, Vol 23, Num 3, pp 243-248, issn 0178-2762Article

Isotope ¹⁵N enrichment of soil-ammonium N as a reference to estimate fixation by stem and root-inoculated S. rostrataRARIVOSON, G; LADHA, J. K.Biology and fertility of soils. 1992, Vol 13, Num 2, pp 74-78, issn 0178-2762Article

Numerical taxonomy of photosynthetic rhizobia nodulating Aeschynomene speciesLADHA, J. K; SO, R. B.International journal of systematic bacteriology. 1994, Vol 44, Num 1, pp 62-73, issn 0020-7713Article

Influence of available nitrogen and rice genotype on associative dinitrogen fixationMALARVIZHI, P; LADHA, J. K.Soil Science Society of America journal. 1999, Vol 63, Num 1, pp 93-99, issn 0361-5995Article

Sesbania phosphorus requirements when used as biofertilizer for long-term rice cultivationVENTURA, W; LADHA, J. K.Soil Science Society of America journal. 1997, Vol 61, Num 4, pp 1240-1244, issn 0361-5995Article

Antigenic analysis of Anabaena azollae and the role of lectin in the Azolla-anabaena symbiosisLADHA, J. K; WATANABE, I.New phytologist. 1984, Vol 98, Num 2, pp 295-300, issn 0028-646XArticle

Nodule bacteroids and Anabaena: natural ¹⁵N enrichment in the legume-Rhizobium and Azolla-Anabaena symbiotic systemsYONEYAMA, T; LADHA, J. K; WATANABE, I et al.Journal of plant physiology. 1987, Vol 127, Num 3-4, pp 251-259, issn 0176-1617Article

Nitrogen dynamics of various green manure species and the relationship to lowland rice productionCLEMENT, A; LADHA, J. K; CHALIFOUR, F.-P et al.Agronomy journal (Print). 1998, Vol 90, Num 2, pp 149-154, issn 0002-1962Article

Nitrate in groundwater and integration of nitrogen-catch crop in rice-sweet Pepper Cropping SystemSHRESTHA, R. K; LADHA, J. K.Soil Science Society of America journal. 1998, Vol 62, Num 6, pp 1610-1619, issn 0361-5995Article

Effect of growing rice on nitrogen mineralization in flooded soilKUNDU, D. K; LADHA, J. K.Soil Science Society of America journal. 1997, Vol 61, Num 3, pp 839-845, issn 0361-5995Article

Automated elemental analysis : a rapid and reliable but expensive measurement of total carbon and nitrogen in plant and soil samplesJIMENEZ, R. R; LADHA, J. K.Communications in soil science and plant analysis. 1993, Vol 24, Num 15-16, pp 1897-1924, issn 0010-3624Article

Influence of Azospirillum inoculation on the mineral uptake and growth of rice under hydroponic conditionsMURTY, M. G; LADHA, J. K.Plant and soil. 1988, Vol 108, Num 2, pp 281-285, issn 0032-079XArticle

Differential colonization of Azospirillum lipoferum on roots of two varieties of rice (Oryza sativa L.)MURTY, M. G; LADHA, J. K.Biology and fertility of soils. 1987, Vol 4, Num 1-2, pp 3-7, issn 0178-2762Article

Isolation and identification of N₂-fixing Pseudomonas associated with wetland riceBARRAQUIO, W. L; LADHA, J. K; WATANABE, I et al.Canadian journal of microbiology. 1983, Vol 29, Num 8, pp 867-873, issn 0008-4166Article

Isolation and identification of nitrogen-fixing Enterobacter cloacae and Klebsiella planticola associated with rice plantsLADHA, J. K; BARRAQUIO, W. L; WATANABE, I et al.Canadian journal of microbiology. 1983, Vol 29, Num 10, pp 1301-1308, issn 0008-4166Article

Assessing the reliability of permanganate-oxidizable carbon as an index of soil labile carbonTIROL-PADRE, A; LADHA, J. K.Soil Science Society of America journal. 2004, Vol 68, Num 3, pp 969-978, issn 0361-5995, 10 p.Article

Estimation of legume symbiotic dependence : an evaluation of techniques based on ¹⁵N dilutionCHALK, P. M; LADHA, J. K.Soil biology & biochemistry. 1999, Vol 31, Num 14, pp 1901-1917, issn 0038-0717Article

Enhancing soil nitrogen use and biological nitrogen fixation in Wetland riceKUNDU, D. K; LADHA, J. K.Experimental Agriculture. 1995, Vol 31, Num 3, pp 261-277, issn 0014-4797Article

Biological N₂ fixation in wetland rice fields : estimation and contribution to nitrogen balanceROGER, P. A; LADHA, J. K.Plant and soil. 1992, Vol 141, Num 1-2, pp 41-55, issn 0032-079XArticle

Estimating N₂ fixation by Sesbania rostrata and S. cannabina (syn. S. aculeata) in lowland rice soil by the ¹⁵N dilution methodPAREEK, R. P; LADHA, J. K; WATANABE, I et al.Biology and fertility of soils. 1990, Vol 10, Num 2, pp 77-88, issn 0178-2762, 12 p.Article

Composition of Azospirillum species associated with wetland rice plant grown in different soilsLADHA, J. K; SO, R. B; WATANABE, I et al.Plant and soil. 1987, Vol 102, Num 1, pp 127-129, issn 0032-079XArticle

Assessing opportunities for nitrogen fixation in rice : a frontier projectLADHA, J. K; DE BRUIJN, F. J; MALIK, K. A et al.Plant and soil. 1997, Vol 194, Num 1-2, pp 1-10, issn 0032-079XConference Paper

Isolation of endophytic diazotrophic bacteria from wetland riceBARRAQUIO, W. L; REVILLA, L; LADHA, J. K et al.Plant and soil. 1997, Vol 194, Num 1-2, pp 15-24, issn 0032-079XConference Paper

Enhancing legume N₂ fixation through plant and soil managementPEOPLES, M. B; LADHA, J. K; HERRIDGE, D. F et al.Plant and soil. 1995, Vol 174, Num 1-2, pp 83-101, issn 0032-079XArticle

Simulation of nitrogen balance in rice-wheat systems of the indo-gangetic plainsPATHAK, H; LI, C; WASSMANN, R et al.Soil Science Society of America journal. 2006, Vol 70, Num 5, pp 1612-1622, issn 0361-5995, 11 p.Article