N-labeled Nitrogen From Green Manure And Ammonium Sulfate Utilization By The Sugarcane Ratoon [aproveitamento Do Nitrogênio-15 Da Adubação Verde E Do Sulfato De Amônio Pela Soqueira Da Cana-de-açúcar]

Legumes as green manure are alternative sources of nitrogen (N) for crops and can supplement or even replace mineral nitrogen fertilization due to their potential for biological nitrogen fixation (BNF). The utilization of nitrogen by sugarcane (Saccharum spp.) fertilized with sunn hemp (Crotalaria juncea L.) and ammonium sulfate (AS) was evaluated using the 15N tracer technique. N was added at the rate of 196 and 70 kg ha-1 as 15Nlabeled sunn hemp green manure (SH) and as ammonium sulfate (AS), respectively. Treatments were: (i) Control; (ii) AS 15N; (iii) SH 15N + AS; (iv) SH 15N; and (v) AS 15N + SH. Sugarcane was cultivated for five years and was harvested three times. 15N recovery was evaluated in the two first harvests. In the sum of the three harvests, the highest stalk yields were obtained with a combination of green manure and inorganic N fertilizer; however, in the second cutting the yields were higher where SH was used than in plots with AS. The recovery of N by the first two consecutive harvests accounted for 19 to 21% of the N applied as leguminous green manure and 46 to 49% of the N applied as AS. The amounts of inorganic N, derived from both N sources, present in the 0-0.4 m layer of soil in the first season after N application and were below 1 kg ha -1.683361368Akaike, H., A new look at the statistical model identification (1974) IEEE Transaction On Automatic Control, 19, pp. 716-723Ambrosano, E.J., Trivelin, P.C.O., Cantarella, H., Rossetto, R., Muraoka, T., Bendassolli, J.A., Ambrosano, G.M.B., Prada, N., Nitrogen-15 labeling of Crotalaria juncea Green Manure (2003) Scientia Agricola, 60, pp. 181-184Ambrosano, E.J., Trivelin, P.C.O., Cantarella, H., Ambrosano, G.M.B., Schammass, E.A., Guirado, N., Rossi, F., Muraoka, T., Utilization of nitrogen from green manure and mineral fertilizer by sugarcane (2005) Scientia Agricola, 62, pp. 534-542Ambrosano, E.J., Trivelin, P.C.O., Cantarella, H., Ambrosano, G.M.B., Schammass, E.A., Muraoka, T., Guirado, N., Rossi, F., Nitrogen supply to maize from sunn hemp and velvet bean green manures (2009) Scientia Agricola, 66, pp. 386-394Ambrosano, E.J., Azcón, R., Ambrosano, G.M.B., Cantarella, H., Guirado, N., Muraoka, T., Rossi, F., Teramoto, S.J.R., Crop rotation biomass and arbuscular mycorrhizal fungi effects on sugarcane yield (2010) Scientia Agricola, 67, pp. 692-701Asagi, N., Ueno, H., Nitrogen dynamics in paddy soil applied with various 15N-labelled green manures (2009) Plant Soil, 322, pp. 251-262Basanta, M.V., Dourado, N.D., Reichardt, K., Bacchi, O.O.S., Oliveira, J.C.M., Trivelin, P.C.O., Timm, L.C., Macedo, J.R., Management effects on nitrogen recovery in a sugarcane crop grown in Brazil (2003) Geoderma, 116, pp. 235-248Boaretto, A.E., Spolidorio, E.S., Freitas, J.G., Trivelin, P.C.O., Muraoka, T., Cantarella, H., Fate of 15N-urea applied to wheat-soybean succession crop (2004) Bragantia, 63, pp. 265-274. , (in Portuguese, with abstract in English)Buresh, R.J., Austin, E.R., Craswell, E.T., Analytical methods in 15N research (1982) Fertilizer Research, 3, pp. 337-362Cantarella, H., Trivelin, P.C.O., Vitti, A.C., Nitrogen and sulfur in the sugar cane (2007) Nitrogen and Sulfur In the Brazilian Agriculture, pp. 355-412. , Yamada, T.Abdalla, S.R.S.Vitti, G.C. (ed.), SP, Brazil (in Portuguese) Piracicaba: International Plant Nutrition Institute, PiracicabaCantarella, H., Nitrogen (2007) Soil Fertility, pp. 375-470. , Novais, R.F.Alvarez V.Barros, N.F.Fontes, R.L.F.Cantarutti, R.B.Neves, J.C.L., eds, Sociedade Brasileira de Ciência do Solo, Viçosa, MG, Brazil (in Portuguese, with abstract in EnglishDinardo-Miranda, L.L., Fracasso, J.V., Spatial distribution of plantparasitic nematodes in sugarcane fields (2009) Scientia Agricola, 66, pp. 188-194Freney, J.R., Denmead, O.T., Wood, A.W., Saffigna, P.G., Chapman, L.S., Ham, G.J., Hurney, A.P., Stewart, R.L., Factors controlling ammonia loss from trash covered sugarcane fields fertilized with urea (1992) Fertilizer Resarch, 31, pp. 341-349Gava, G.J.C., Trivelin, P.C.O., Vitti, A.C., Oliveira, M.W., Recovery of nitrogen (15N) from urea and cane trash by sugar cane ratoon (Saccharum spp.) (2003) Pesquisa Agropecuária Brasileira, 27, pp. 621-630. , (in Portuguese, with abstract in English)Ghiberto, P.J., Libardi, P.L., Brito, A.S., Trivelin, P.C.O., Leaching of nutrients from a sugarcane crop growing on an Ultisol in Brazil (2009) Agricultural Water Management, 96, pp. 1443-1448Herridge, D.F., Peoples, M.B., Boddey, R.M., Global inputs of biological nitrogen fixation in agricultural systems (2008) Plant Soil, 311, pp. 1-18Humbert, R.P., (1968) The Growing of Sugar Cane, pp. 133-309. , Nutrition of sugar cane. Elsevier, Amsterdam, The Netherlands(2010) Systematic Survey of Agricultural Production, , http://www.sidra.ibge.gov.br/bda/default.asp?t=5&z=t&o=1&u1=1&u2=1&u3=1&u4=1&u5=1&u6=1&u7=1&u8=1&u9=3&u10=1&u11=26674&u12=1&u13=1&u14=1, IBGE, Available at, Accessed Aug. 16, 2010] (in Portuguese)Kanthack, R.A.D., Mascarenhas, H.A.A., Castro, O.M., Tanaka, R.T., Nitrogen Applied As Side Dressing In Corn after White Lupine (1991) Brazilian Journal of Agricultural Research, 26, pp. 99-104. , (in Portuguese, with abstract in English)Littel, R.C., Milliken, G.A., Stroup, W.W., Wolfinger, R.D., SAS System for mixed models (1996) SAS Institute, p. 633Mascarenhas, H.A.A., Tanaka, R.T., Costa, A.A., Rosa, F.V., Costa, V.F., Residual effect of the leguminosas on the physical and economic income of the sugar cane-plant (1994) IAC, Campinas, p. 15. , Scientific Bulletin, 32) (in PortugueseMuraoka, T., Ambrosano, E.J., Zapata, F., Bortoletto, N., Martins, A.L.M., Trivelin, P.C.O., Boaretto, A.E., Scivittaro, W.B., Efficiency of green manure (sun hemp and velvet bean) and urea, applied only or together, as sources of N for the rice culture (2002) Terra, 20, pp. 17-23. , (in Portuguese, with abstract in English)Perin, A., Santos, R.H.S., Urquiaga, S., Guerra, J.G.M., Cecon, P.R., Sunnhemp and millet as green manure for tropical maize production (2006) Scientia Agricola, 63, pp. 453-459Resende, A.S., Xavier, R.P., Quesada, D.M., Urquiaga, S., Alves, B.J.R., Boddey, R.M., Use of green manures in increasing inputs of biologically fixed nitrogen to sugar cane (2003) Biology and Fertility of Soils, 37, pp. 215-220Rochester, I., Peoples, M., Growing Vetches (Vicia Villosa Roth): In Irrigated cotton systems: Inputs of fixed N,N fertilizer savings and cotton productivity (2005) Plant Soil, 271, pp. 251-264(2004) SAS/STAT Software: Changes and Enhancements Through Release 8.2, p. 1028. , SAS Institute, SAS, Cary NCSeo, J., Meisinger, J.J., Lee, H., Recovery of nitrogen-15-labeled hairy vetch and fertilizer applied to corn (2006) Agronomy Journal, 98, pp. 245-254Silva, E.C., Muraoka, T., Buzetti, S., Guimarães, G.L., Trivelin, P.C.O., Veloso, M.E.C., Utilization of residual nitrogen (15N) from cover crop and urea by corn (2006) Revista Brasileira De Ciência Do Solo, 30, pp. 965-974. , (in Portuguese, with abstract in English)Silva, G.T.A., Matos, L.V., Nobrega, P.D., Campello, E.F.C., Resende, A.S., Chemical composition and decomposition rate of plants used as green manure (2008) Scientia Agricola, 65, pp. 298-305Silveira, J.A.G., Crocomo, O.J., Nitrogen Assimilation in sugarcane plants as affected by high levels of N and vinasse in the soil (1990) Brazilian Journal of Plant Physiology, 2, pp. 7-15. , (in Portuguese, with abstract in English)Tanimoto, T., The press method of cane analysis (1964) Hawaiian Planter's Record, Honolulu, 57, pp. 133-150Trivelin, P.C.O., Lara, C.W.A.R., Victoria, R.L., Reichardt, K., Evaluation of a 15N plot design for estimating plant recovery of fertilizer nitrogen applied to sugar cane (1994) Scientia Agricola, 51, pp. 226-234Trivelin, P.C.O., Rodrigues, J.C.S., Victoria, R.L., Utilization by early harvest sugar cane Ratoon of the Nitrogen from "N-Aqua ammonia and 15n-Urea applied to the soil as vinasse NComplement (1996) Pesquisa Agropecuária Brasileira, 31, pp. 89-99. , (in Portuguese, with abstract in English)Trivelin, P.C.O., Victoria, R.L., Rodrigues, J.C.S., Utilization by Late Harvest Sugar cane ratoon of nitrogen from "N-Aqua Ammonia and "N-Urea Applied to the soil as vinasse NComplement (1995) Pesquisa Agropecuária Brasileira, 30, pp. 1375-1385. , (in Portuguese, with abstract in English

Nitrogen Supply To Corn From Sunn Hemp And Velvet Bean Green Manures [fornecimento De Nitrogênio Ao Milho Pelos Adubos Verdes Crotalária Júncea E Mucuna Preta]

Due to their nitrogen fixation potential, legumes represent an alternative for supplying nutrients, substituting or complementing mineral fertilization in cropping systems involving green manuring. The objective of this study was to evaluate the N balance in a soil-plant system involving green manures [sunn hemp (Crotalaria juncea L.) and velvet bean (Mucuna aterrima Piper & Tracy)], both labeled with 15N. They were incorporated into two soils of contrasting textural classes: A clayey Eutrudox and a sandy-clayey Paleudalf, both cultivated with corn. The research was carried out in a greenhouse, using pots containing 6 kg of air dried soil, to which the equivalent to 13 Mg ha-1 dry matter of above-ground mass plus 2.7 or 2.2 Mg ha-1 of velvet bean and sunn hemp roots were incorporated, respectively, with 15N labeling of either shoots or roots. One hundred days after emergence of the corn, the velvet bean residues provided higher accumulation of N in the soil, higher absorption by corn plants and accumulation in the shoot. The green manure decomposition was more intense in the medium-textured Paleudalf. The highest nitrogen losses were also observed in this soil.663386394Allison, F.E., (1966) The Fate of Nitrogen Applied to Soils Advances in AgronomyAmbrosano, E.J., Avaliação do crescimento e aproveitamento de fertilizante nitrogenado pelo capim colonião var (1989) Tobiatã em diferentes épocas, p. 110. , Piracicaba: USP/ESALQ, Dissertação (Mestrado)Ambrosano, E.J., Dinâmica do nitrogênio dos adubos verdes, crotalária júncea (Crotalaria juncea) e mucuna-preta (Mucuna aterrima) em dois solos cultivados com milho (1995), p. 83. , Piracicaba: USP/ESALQ, Tese (Doutorado)Ambrosano, E.J., Trivelin, P.C.O., Muraoka, T., Técnica para marcação dos adubos verdes crotalária júncea e mucuna-preta, com 15N para estudos de dinâmica do nitrogênio (1997) Bragantia, 56, pp. 219-224Ambrosano, E.J., Trivelin, P.C.O., Cantarella, H., Ambrosano, G.M.B., Muraoka, T., Nitrogen mineralization in soils amended with sunnhemp, velvet bean and common bean residues (2003) Scientia Agricola, 60, pp. 133-137Ambrosano, E.J., Trivelin, P.C.O., Cantarella, H., Ambrosano, G.M.B., Schammas, E.A., Guirado, N., Rossi, F., Muraoka, T., Utilization of nitrogen from green manure and mineral fertilizer by sugarcane (2005) Scientia Agricola, 62, pp. 534-542Azam, F., Malik, K.A., Sajjad, M.I., Transformations in soil and availability to plants of 15N applied as inorganic fertilizer and legume residues (1985) Plant and Soil, 86, pp. 3-13Azam, F., Malik, K.A., Sajjad, M.I., Uptake by wheat plants and turnover within soil fractions of residual N from leguminous plant material and inorganic fertilizer (1986) Plant and Soil, 95, pp. 97-108Bartholomew, W.V., Mineralization and immobilization of nitrogem in the decomposition of plant and animal residues (1965) Soil Nitrogen. Madison: American Society of Agronomy, pp. 287-306. , In: BARTHOLOMEW, W.V.CLARK, F.E. (Ed.), (Agronomy Monograph, 10)Bayer, C., Mielniczuk, J., Martin-Neto, L., Errnani, P.R., Stocks and humification degree of organic matter fractions as affected by no-tillage on subtropical soil (2002) Plant and Soil, 238, pp. 133-140Bremner, J.M., Nitrogen-total (1996) Methods of Soil Analysis, pp. 1085-1121. , In: SPARKS, D.L. (Ed.), Madison: Soil Science Society of AmericaBuresh, R.J., Austin, E.R., Craswell, E.T., Analytical methods in 15N research (1982) Fertilizer Research, 3, pp. 337-62Calvache Ulloa, A.M., Libardi, P.L., Reichardt, K., (1982) Utilização do nitrogênio fertilizante por dois híbridos de milho, p. 66. , Campinas: Fundação CargillFarquhar, G.D., Wetselaar, R., Firth, P.M., Ammonia volatilization from senescing leaves of maize (1979) Science, 203, pp. 257-1258Flores, L.M., Avaliação quantitativa da eficiência de utilização de duas fontes de nitrogênio, CO(15NH2)2 e (15NH4)2SO4 pela cultura de milho (Zea mays L.) (1986), p. 103. , Piracicaba: USP/ESALQ, Dissertação (Mestrado)Gallo, P.B., Sawazaki, E., Hiroce, R., Mascarenhas, H.A.A., Produção de milho afetada pelo nitrogênio mineral e cultivos anteriores com soja (1983) Revista Brasileira de Ciência do Solo, 7, pp. 149-152Gallo, P.B., Mascarenhas, H.A.A., Bataglia, O.C., Quaggio, J.A., Interação calagem-adubação nitrogenada na produção de sorgo sob deficiência hídrica em rotação com soja (1986) Bragantia, 45, pp. 231-238Harris, G.H., Hesterman, O.B., Quantifying the nitrogen contribution from alfafa to soil and two succeeding crops using nitrogen-15 (1990) Agronomy Journal, 82, pp. 129-134(1976) Tracer Manual on Crops and Soils, p. 277. , INTERNATIONAL ATOMIC ENERGY AGENCY - IAEA, Viena: IAEA, (Technical Reports Series, 171)Jans-Hammermeister, D.C., McGill, W.B., Jensen, T.L., Nitrogen accumulations and relative rates of mineralization in two soils following legume green manuring (1993) Canadian Journal of Soil Science, 74, pp. 23-28Ng Kee Kwong, K.F., Deville, J., Application of 15N- labelled urea to sugar cane through a drip-irrigation system in Mauritius (1994) Fertilizer Research, 39, pp. 223-228Kanthack, R.A.D., Mascarenhas, H.A.A., Castro, O.M., Tanaka, R.T., Nitrogênio aplicado em cobertura no milho após tremoço (1991) Pesquisa Agropecuária Brasileira, 26, pp. 99-104Ladd, J.N., Oades, J.M., Amato, M., Microbial biomass formed from 14C, 15N-labelled plant material decomposing in soils in the field (1981) Soil Biology & Biochemistry, 13, pp. 119-126Ladd, J.N., Oades, J.M., Amato, M., Distribution and recovery of nitrogen from legume residues decomposing in soils sown to wheat in the field (1981) Soil Biology & Biochemistry, 13, pp. 251-256Ladd, J.N., Amato, M., Jackson, R.B., Butler, J.H.A., Utilization by wheat crops of nitrogen from legume residues decomposing in soils in the field (1983) Soil Biology & Biochemistry, 15, pp. 231-238Mascarenhas, H.A.A., Tanaka, R.T., Costa, A.A., Rosa, F.V., Costa, V.F., (1994) Efeito residual das leguminosas sobre o Campinas: Instituto Agronômico de Campinas, p. 15. , (Boletim Científico IAC, 32)Montojos, J.C., Gargantini, H., Fixação do nitrogênio do ar pelas bactérias que vivem em simbiose com as raízes das leguminosas (1963) Bragantia, 22, pp. 731-739Muller, M.M., Sundman, V., The fate of nitrogen (15N) released from different plant materials during decomposition under field conditions (1988) Plant and Soil, 105, pp. 133-139Pereira, J.C.V.N.A., Mascarenhas, H.A.A., Martins, A.L.M., Braga, N.R., Sawazaki, E., Gallo, P.B., Efeito da adubação nitrogenada em cobertura no cultivo contínuo do milho e do algodão e em rotação com soja (1988) Revista de Agricultura, 63, pp. 95-108Proksch, G., Routine analysis of 15N in plant material by mass-spectrometry (1969) Plant and Soil, 31, pp. 380-384Rittenberg, D., The preparation of gas sample for mass-spectrometric analysis (1946) Preparation and Measure of Isotopic Tracers, p. 31. , In WILSON, D.W. (Ed), Ann Arbor: EdwadsSilva, P.R.F., Stutte, C.A., Nitrogen loss in conjunction with transpiration from rice leaves as influenced by growth stage, leaf position and N supply (1981) Agronomy Journal, 73, pp. 38-48Silva, R., Potencial da mucuna preta como adubo verde para o arroz-de-sequeiro em latossolo amarelo da amazônia (1991), p. 136. , Piracicaba: USP/ESALQ, Tese (Doutorado)Silva, E.C., Manejo da adubação nitrogenada e utilização do nitrogênio (15N) da uréia, do milheto e da crotalária pelo milho sob semeadura direta em solo de cerrado (2005), p. 136. , Piracicaba: USP/CENA, Tese (Doutorado)Scivittaro, W.B., Muraoka, T., Boaretto, A.E., Trivelin, P.C.O., Transformações do nitrogênio proveniente de mucuna-preta e uréia utilizados como adubo na cultura do milho (2003) Pesquisa Agropecuária Brasileira, 38, pp. 1427-1433Stevenson, F.J., Organic forms of soil nitrogen (1982) Nitrogen in Agricultural Soils, pp. 67-122. , In: STEVENSON, F.J. (Ed.), Madison: American Society of Agronomy, (Agronomy Monograph, 22)Stevenson, F.J., (1994) Humus Chemistry: Genesis, Composition, Reactions, pp. 59-95. , 2 ed. New York: John WileyStutte, C.A., Weiland, R.T., Blem, A.R., Gaseous nitrogen loss from soybean foliage (1979) Agronomy Journal, 71, pp. 95-97Ta, T.C., Faris, M.A., Availability of N from 15N labelled alfafa residues to three succeeding barley crops under field conditions (1990) Soil Biology & Biochemistry, 22, pp. 835-838Tanaka, R.T., Mascarenhas, H.A.A., Dias, O.S., Campidelli, C., Bulisani, E.A., Cultivo da soja após incorporação de adubo verde e orgânico (1992) Pesquisa Agropecuária Brasileira, 27, pp. 1477-1483Trivelin, P.C.O., Salati, E., Matsui, E., Preparo de amostras para análise de 15N por espectrometria de massas (1973), p. 41. , Piracicaba: USP/CENA, (Boletim Técnico, 2)Trivelin, P.C.O., Lara Cabezas, W.A.R., Victotia, R.L., Reichardt, K., Evaluation of a 15N plot design for estimating plant recovery of fertilizer nitrogen applied to sugar cane (1994) Scientia Agricola, 51, pp. 226-234Villas Bôas, R.L., Alternativas para aumento da recuperação do nitrogênio da uréia pelo milho (Zea mays L) (1990), p. 78. , Piracicaba: USP/CENA, Dissertação (Mestrado

RESPOSTA DA APLICAÇÃO DE MICRONUTRIENTES NO CULTIVO DE FEIJÃO IRRIGADO NO INVERNO

Ensaios em campo, sob irrigação por aspersão, foram conduzidos nos municípios de Ribeirão Preto, Votuporanga (1990, 1991) e Pindorama (1992, 1993), em São Paulo, nos solos latossolo roxo, latossolo vermelho-escuro fase arenosa e podzolizado de Lins e Marília, var-Marília, respectivamente, no período de maio a agosto, visando estudar o efeito da aplicação de micronutrientes, via solo e foliar, no rendimento do feijoeiro cultivar IAC-Carioca. Os tratamentos foram avaliados em delineamento de blocos casualizados com cinco repetições. Os tratamentos aplicados ao solo constaram de: testemunha com adubação básica e sem adição de micronutrientes; testemunha sem adubação básica e sem adição de micronutrientes; 20 kg ha-1 de borogram (8% B); 20 kg ha-1 de zincogram (20% Zn); 30 kg ha-1 de FTE-BR-12; 60 kg ha-1 de FTE-BR-12; e de aplicações foliares de uma solução contendo N (1 kg ha-1), P (0,5 kg ha-1), K (1,4 kg ha-1), aos 15, 25 e 35 dias após emergência, e de outra que, além de N,P,K incluiu uma mistura de micronutrientes contendo boro, molibdênio e zinco. Os resultados evidenciaram que a produtividade do feijoeiro irrigado no inverno pode ser incrementada pela adição da mistura de micronutrientes FTE-BR-12, na dosagem de 30 kg ha-1. A aplicação da mistura de micronutrientes incluindo o molibdênio, pode contribuir efetivamente para um aumento nos teores de nitrogênio das folhas de feijoeiro irrigado cultivado em solos com baixa fertilidade natural, como o de Pindorama.An experiment was conducted at three localities, Ribeirão Preto (Latosolic B Terra Roxa), Votuporanga (Dark red latossol sandy phase) and Pindorama (Podzolic Lins-Marília), in the State of São Paulo, Brazil, to evaluate the response of micronutrients on irrigated dry beans during a two year period at Ribeirão Preto and Votuporanga (1990, 1991) and in the next two years in Pindorama. The experimental design consisted of completely randomized blocks, with five replications. Treatments were: check, 20 kg ha-1 of borogram (8% B); 20 kg ha-1 of zincogram (20% Zn); 30 kg ha-1 of FTE-BR-12 and 60 kg ha-1 of FTE-BR-12 all applied in the soil. The foliar application of macronutrients consisted of: N (1 kg ha-1 ), P (0,5 kg ha-1), K (1,4 kg ha-1), which were sprayed 15, 25 and 35 days after emergence. An additional treatment consisted of NPK plus micronutrients (Mo, B and Zn) which was applied during the same period. The results showed that the yield of irrigated dry beans in the winter can be increased using the mixture of micronutrients (30 kg ha-1 FTE-BR-12). The aplication of micronutrients including molibdeniun increase the concentration of nitrogen in the leaves of dry beans, in the case of low fertility soils, as in Pindorama

Productivity Of Sugarcane After Previous Legumes Crop [produtividade Da Cana-de-açúcar Após O Cultivo De Leguminosas]

The research aimed to evaluate and characterize the biomass of leguminous residues, the natural arbuscular mycorrhizal (AM) fungus occurrence and the effect of leguminous on the nematodes (Pratylenchus spp.) in sugarcane crop. The experiment was carried out in Piracicaba, São Paulo State, Brazil. The soil was classified as Paleudalf and the sugarcane (Saccharum spp.) cultivar was IAC87-3396. The effects of previous cultivation of legumes were evaluated for five consecutive harvests. The treatments consisted of previous cultivation of legumes: peanut (Arachis hypogaea L.) cultivars IAC-Tatu and IAC-Caiapó, sunn hemp IAC 1 (Crotalaria juncea L.) and velvet-bean [Mucuna aterrima (Piper & Tracy) Holland], and a control treatment. We adopted the randomized block design with five replications. The legume most productive was sunn hemp IAC 1 with 10.264kgha -1, followed by velvet-bean with 4.391 kg ha -1 and peanuts IAC-Caiapó and IAC-Tatu with 3.177 kgha -1 and 1.965 kg ha -1, respectively. The peanut IAC-Caiapó and velvet bean were the leguminous crops that resulted in the greater percentage of AM fungus. The lowest population of Pratylenchus spp. was found in the treatments with peanut IAC-Tatu and IAC-Caiapó. After five harvests, sunn hemp was the leguminous crop that induced the greatest sugarcane yield, with 30% increase in cane yield and 35% in sugar yield.704810818Ambrosano, E.J., Trivelin, P.C.O., Cantarella, H., Ambrosano, G.M., B.SCHAMMASS, E.A.MURAOKA, T.ROSSI, F.15N-labeled nitrogen from green manure and ammonium sulfate utilization by the sugarcane ratoon (2011) Scientia Agricola, 68, pp. 361-368Ambrosano, E.J., Trivelin, P.C.O., Cantarella, H., Ambrosano, G.M.B., Schammass, E.A., Guirado, N., Rossi, F., Muraoka, T., Utilization of nitrogen from green manure and mineral fertilizer by sugarcane (2005) Scientia Agricola, 62, pp. 534-542Ambrosano, E.J., Azcón, R., Cantarella, H., Ambrosano, G.M.B., Schammass, E.A., Trivelin, P.C.O., Muraoka, T., Teramoto, J.R.S., Crop rotation biomass and arbuscular mycorrhizal fungi effects on sugarcane yield (2010) Scientia Agricola, 67, pp. 692-701Ambrosano, E.J., Wutke, E.B., Braga, N.R., Miranda, M.A.C., Leguminosas: Alternativas para produção ecológica de grãos em diferentes regiões agroecológicas do Estado de São Paulo (1999) Agricultura Ecológica, pp. 161-178. , In: AMBROSANO, E.J. (Coord.), 1. ed. Guaíba: Agropecuária(2010) Instituto de Economia Agrícola, , HTTP://www.ieahttp://ciagri.iea.sp.gov.br/nia1/Precos_Medios.aspx?cod_sis=2, BANCO IEA, [cited 2010 May 28]. 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