Soybean (Glycine max) and Siratro (Macroptillium atropurpureaum) were grown in a low N status granite soil for a total of six crop cycles under glasshouse conditions. Plant material was returned to the pots after each crop (total plant minus beans in soybean and 50% of top yield in siratro). Plant yields and N contents were recorded for each crop as well as changes in soil total N levels. From these data an estimate was made of N fixation by the crops. Mineral N levels were also monitored before and after the addition of crop residues.
Under the conditions of this experiment, cumulative total N recovered in whole soybean was 6.76 g. From this total a cumulative amount of 5.09 g N/plot or 75.3% was removed from the soil-plant system in grain, leaving 1.67 g N/plot or 24.7% returned to the soil over the two year period.
Over the same period, a cumulative amount of 5.18 g N/plot was recovered from siratro tops and of this, 2.59 g N/plot or 50% was returned to the soil to simulate a grazing situation.
Under these glasshouse conditions, soybean added 6.80 g N/plot (843.2 kg/ha) and siratro 9.80 g N/plot (1215.2 kg/ha) over their original levels to the top 15 cm soil; no significant changes in the soil N were detected in soil below 15 cm depth.
The mineral N levels increased over the six crop cycles from 5.8 to 32.3 ppm for soybean and from 18.7 to 166.0 ppm for siratro following the drying and wetting treatments imposed after the addition of crop residues. The large difference in the total and mineral N levels in soil under each legume crop species was due to difference in N fixation and the amount of plant N returned to the respective soils.
Over the whole period of two years (six crops), the amount of N fixed was 11.91 g N/plot (1476.8 kg/ha) for soybean and 11.40 g N/plot (1413.6 kg/ha) for siratro, giving an average per crop of 1.99 and 1.90 g N/plot (246.1 and 235.6 kg/ha), respectively.
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Agboola, A. A. and Fayemi, A. A. 1972 Fixation and excretion of nitrogen by tropical legumes. Agron. J.64, 409–412.
Birch, H. F. 1960 Nitrification in soils after different period of dryness. Plant and Soil11, 81–96.
Birch, H. F. 1964 Mineralization of plant nitrogen following alternate wet and dry conditions. Plant and Soil20, 43–49.
Bradfield, R. 1974 Intensive multiple cropping. Trop. Agric. Trinidad51, 91–93.
Bremner, J. M. 1965 Total NIn C. A. Black (ed.) Method of Soil Analysis. Part 2. Agron. Mono.9, 1149–1178.
Bremner, J. M. 1965 Inorganic forms of nitrogenIn C. A. Black (ed.). Methods of Soil Analysis. Part 2. Agron. Mono.9, 1179–1237.
Bruce, R. C. 1965 Effect ofCentrosema pubescens Benth. on soil fertility in the humid tropics. Qld. J. Agric. Sci.22, 221–226.
Bruce, R. C. 1967 Tropical legumes lifts soil nitrogen. Qld. J. Agric. Sci.95, 592.
Chen, C. P., Chang, K. G., Sidhu, Ajit Singh and Hassan Wabab 1978 Pasture and animal production under five-year old oil palm at Serdang.In Symp. Intergration of Animals with Plantation Crops, Penang, Malaysia.
Cornforth, I. S. and Davis, J. B. 1968 Nitrogen transformation in tropical soils. I. Mineralization of nitrogen-rich organic materials added to soil. Trop. Agric. Trinidad45, 211–221.
Dale, W. L. 1963 Surface temperature in Malaya. J. Trop. Geog.17, 57–67.
Doak, B. W. 1952 Some chemical changes in the nitrogenous constituents of urine when voided on pasture. J. Agric. Sci. Camb.42, 162–171.
Hanway, J. J. and Weber, C. R. 1917 Dry matter accumulation in soybean (Glycine max Merrill) plants as influenced by N. P. and K fertilization. Agron. J.63, 286–290.
Henderson, J. B. and Kamprath, E. J. 1970 Dry matter and nutrient accumulation in soybean. Tech. Bull. No.197. North Carolina Agric. Expt. Stn.
Henzell, E. F. 1967 Tropical legumes for Northern Australia. Symposium: Legumes in tropical agriculture. Soil Crop Sci. Soc. Florida27, 322–338.
Henzell, E. F. 1971 Recovery of nitrogen from four fertilizers applied to Rhodes grass in small plots. Aust. J. Exp. Agric. Anim. Husb.11, 420–430.
Jackson, M. L. 1964 Soil chemical analysis. Prentice Hall, N.J.
Lal, R. 1974 Soil temperature, soil moisture and maize yield from mulched and unmulched tropical soils. Plant and Soil40, 129–143.
Lal, R. 1974 No tillage effects on soil properties and maize (Zea mays L.) production in Western Nigeria. Plant and Soil40, 321–331.
Mandal, S. C. and Murkerjee, H. N. 1954 New cropping systems for the maintenance of soil fertility. Proc. Bihar Acad. Sci.2–3, 49–57.
Martajo, H. 1978 Possibilities of integration of animals with plantation crops.In Symp. Integration of Animals with Plantation Crops, Penang, Malaysia.
Masefield, G. B. 1957 The value of legumes in crop associations in the tropics. World Crops9, 479–484.
McGarity, J. W. and Hoult, E. H. 1971 The plant component as a factor in ammonia volatilization from pasture swards. J. Br. Grassl. Soc.26, 31–34.
McMullen, F. 1966 The nutrient status of granite soils from the Bendemeer area of New South Wales. Aust. J. Exp. Agric. Anim. Husb.6, 17–21.
Musa M. M. and Burhan, H. O. 1974 The relative performance of forage legumes as rotational crops in the Gezira. Exp. Agric.10, 131–140.
Norman, M. J. T. and Begg, J. E. 1973 Katherine Research Station: A review of published work 1965–1972. Div. Ld. Res. Tech. Pap.33, 1–63.
Nye, P. H. 1961 Organic matter and nutrient cycles under moist tropical forests. Plant and Soil13, 333–346.
Osman Abu-Zeid, M. 1973 Continuous cropping in areas of shifting cultivation in the southern Sudan. Trop. Agric. Trinidad50, 285–290.
Yaacob, O. 1970 Fertility studies on old rubber soils. Coll. Agric. Res. Publ. No.6, pp. 32.
Yaacob, O. 1976 Field techniques for securing a large number of undisturbed soil cores. Mal. Agric. Res.5, 83–85.
Rockwood, W. G. and Lal, R. 1974 Mulch tillage: A technique for soil and water conservation in the tropics. Span17, 77–79.
Semb, G. and Garberg, P. K. 1969 Some effects of planting date and nitrogen fertilizer in maize E. Afr. Agric. For. J.34, 371–379.
Thomas, R. L., Sheard, W. W. and Moyer, J. R. 1967 Comparison of conventional and automated procedures for nitrogen, phosphorus and potassium analysis of plant material using a single digestion. Agron. J.59, 240–243.
Vallis, I. and Jones, R. J. 1973 Net mineralization of nitrogen in leaves ofPhaesoleus atropurpureus and leaf litter ofDesmodium intortum andPhaesoleus atropurpureus mixed with soil. Soil Biol. Biochem.5, 391–398.
Walker, T. W., Adams, A. F. R. and Orchiston, H. D. 1954 The nitrogen economy of legumegrass associations. J. Br. Grassl. Soc.9, 249–274.
Watson, G. A. 1964 Maintenance of soil fertility in the permanent cultivation ofHevea brasiliensis in Malaya. Outlook Agric.4, 103–109.
Weber, C. R. 1969 Physiological concepts for high soybean yields. Field Crop Abstr.21, 313–317.
Wetselaar, R., Jakobsen, P. and Chaplin, G. R. 1973 Nitrogen balance in crop systems in tropical Australia. Soil Biol. Biochem.5, 35–40.
Whiteman, P. C. 1971 Distribution and weight of nodules in tropical pasture legumes in the field. Exp. Agric.7, 75–85.
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Yaacob, O., Blair, G.J. Effect of legume species and cropping intensity on the nitrogen status of a granite soil under a simulated tropical environment. Plant Soil 52, 85–97 (1979). https://doi.org/10.1007/BF02197735
- Grain legumes
- Granite soil
- Pasture legumes
- Soil N