Study

Nitrogen mineralization, microbial biomass and crop yield as affected by wheat residue placement and fertilizer in a semi-arid tropical soil with minimum tillage

  • Published source details Singh H. (1995) Nitrogen mineralization, microbial biomass and crop yield as affected by wheat residue placement and fertilizer in a semi-arid tropical soil with minimum tillage. Journal of Applied Ecology, 32, 588-595

Actions

This study is summarised as evidence for the following.

Action Category

Amend the soil using a mix of organic and inorganic amendments

Action Link
Soil Fertility
  1. Amend the soil using a mix of organic and inorganic amendments

    A controlled, randomized, replicated experiment in 1990-1992 on silty-loam soil in India (Singh, 1995) found highest nitrogen levels in soil under fertilizer addition plus wheat residue(4.6-16.6 μg/g/month) followed by the fertilizer-only (4.2-14.3 μg/g/month) and wheat residue-only treatments (4-11.2 μg/g/month), compared to the untreated control (3.4-9.8 μg/g/month). The highest microbial biomass was 400 μg/g under fertilizer plus wheat residue (), compared to 254 μg/g in the control. There were four treatments replicated three times in 5 x 4.2 m plots: control, chemical fertilizer (NPK at 80/40/30 kg/ha), wheat residue (1 kg/m2), wheat residue plus fertilizer (at 50% fertilizer, 50% wheat residue). The crop sequence was a fallow-rice Oryza sativa-lentil Lens culinaris rotation. Wheat residue was lightly incorporated whereas fertilizer was applied to the soil surface. Soils were sampled at the end of the experiment to 10 cm depth.

     

Output references

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