Advertisement

Biology and Fertility of Soils

, Volume 9, Issue 3, pp 235–238 | Cite as

Effect of green manuring, blue-green algae and neem-cake-coated urea on wetland rice (Oryza sativa L.)

  • S. Singh
  • R. Prasad
  • B. V. Singh
  • S. K. Goyal
  • S. N. Sharma
Article

Summary

A field trial was set up to examine the effect of green manuring, blue-green algae, and neem-cake-coated urea on a rice crop. Summer green manuring using Sesbania aculeata increased the crop yield. Inoculation of blue-green algae increased the rice grain yield when 60 kg N ha-1 was applied as prilled urea, but the increase in grain yield was greater when 60 kg N ha-1 was applied as neem-cake-coated urea. The results of the present study show that applications of green manure, neem-cake-coated urea, and blue-green algae are complementary and that the three treatments can be used together in the rice ecosystem. The green manure and the fertilizer treatments had no effect on the algal flora of the soil.

Key words

Algalization Green manuring Neem-cake-coated urea Prilled urea Blue-green algae Sesbania aculeata Wetland rice 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Desikachary TV (1959) Cyanophyta. Indian Council of Agricultural Research, New DelhiGoogle Scholar
  2. FAO (1987a) FAO Production Year Book, FAO, Rome, vol 41Google Scholar
  3. FAO (1987b) FAO Fertilizer Year Book. FAO, Rome, vol 37Google Scholar
  4. George M, Prasad R (1989) Studies on the effect of fertilizer N utilization by rice using 15N technique in rice based multiple cropping systems. Res Dev Agric 6:115–118Google Scholar
  5. Goswami NN, Prasad R, Sarkar MC, Singh S (1988) Studies on the effect of green manuring in nitrogen economy in rice-wheat rotation using 15N technique. J Agric Sci 111:413–417Google Scholar
  6. Grant LF, Roger PA Watanabe I (1985) Effect of grazer regulation and algal inoculation on photodependent nitrogen fixation in a wetland rice field. Biol Fertil Soils 1:61–72Google Scholar
  7. Hsieh SC, Flinn JC, Amer Singh N (1982) The role of rice in meeting the future needs. In: Rice research strategies for the future. International Rice Research Institute (IRRI), Los Baños, Philippines, pp 21–49Google Scholar
  8. IRRI (1987) Sustainable agriculture: The role of green manuring crops rice farming systems. Workshop held at International Rice Research Institute, Los Baños, PhilippinesGoogle Scholar
  9. Morgan ED, Thornton MD (1973) Azadiractin in the fruit of Melia azadirachta. Phytochemistry 12:391–392Google Scholar
  10. Roger PA, Kulassoriya SA (1980) Blue-green algae and rice. International Rice Research Institute, Los Baños, Manila, PhilippinesGoogle Scholar
  11. Saxena RC, Liguide NJ, Justo HD (1979) Neem seed soil, an antifeedent for brown plant hopper control. Proc 10th Annu Conf Pest Control Council, UFLB, Los Baños, PhilippinesGoogle Scholar
  12. Singh S, Prasad R (1985) Studies on the nitrification inhibitor dicyanidimide (DCD) for increasing the efficiency of nitrogen applied to rice. J Agric Sci 104:425–428Google Scholar
  13. Sudhakara K, Prasad R (1986) Relative efficiency of prilled urea, urea super granules (USG) and USG coated with neem cake or DCD for direct seeded rice. J Agric Sci 106:185–190Google Scholar
  14. Venkataraman GS (1981) Blue-green algae for rice production. FAO Soils Bull 46Google Scholar

Copyright information

© Springer-Verlag 1990

Authors and Affiliations

  • S. Singh
    • 1
  • R. Prasad
    • 1
  • B. V. Singh
    • 1
  • S. K. Goyal
    • 1
  • S. N. Sharma
    • 1
  1. 1.Division of Agronomy and National Facility for Blue-Green Algal CollectionsIndian Agricultural Research InstituteNew DelhiIndia

Personalised recommendations