Dangos 1 - 9 canlyniadau o 9 ar gyfer chwilio '', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1

    Management and utilization of acid soils.

    Cyhoeddwyd 1991
    Llyfr

    Management and utilization of acid soils.
  2. 2

    Management and utilization of acid soils.

    Cyhoeddwyd 1991
    Llyfr

    Management and utilization of acid soils.
  3. 3

    Management and utilization of acid soils.

    Cyhoeddwyd 1991
    Llyfr

    Management and utilization of acid soils.
  4. 4

    Management of acid soils in the humid tropics of Asia

    Cyhoeddwyd 1989
    Llyfr

    Management of acid soils in the humid tropics of Asia
  5. 5

    Acid soil and acid rain the impact on the environment of nitrogen and sulphur cycling gan Kennedy, I. R.

    Cyhoeddwyd 1986
    Llyfr

    Acid soil and acid rain the impact on the environment of nitrogen and sulphur cycling
  6. 6

    Proceedings of the Bangkok symposium on acid sulphate soils second international symposium on acid sulphate soils, Bagnkok, Thailand, January 18-24, 1981

    Cyhoeddwyd 1982
    Llyfr

    Proceedings of the Bangkok symposium on acid sulphate soils second international symposium on acid sulphate soils, Bagnkok, Thailand, January 18-24, 1981
  7. 7

    Status and behavior of phosphorus in some acid soils in the Philippines gan Metra, Teodula Malong 1954-

    Llyfr

    Status and behavior of phosphorus in some acid soils in the Philippines
  8. 8

    Effect of various methods of fertilizer application on the productivity of brackishwater fishponds in reclaimed acid sulfate soils gan Ladja, Hamjaraja B. (Hamjaraja Balnulla)

    Llyfr

    Effect of various methods of fertilizer application on the productivity of brackishwater fishponds in reclaimed acid sulfate soils
  9. 9

    Chemical changes in submerged acid sulfate soil-water system treated with some organic materials gan Hechanova, Ma. Dulce J.

    Llyfr

    Chemical changes in submerged acid sulfate soil-water system treated with some organic materials

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