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Wibowo S
Universitas Palangka Raya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Engineering

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KERAGAMAN CACING TANAH PADA LAHAN DENGAN BERBAGAI MASUKAN BAHAN ORGANIK DI DAERAH LAMPUNG UTARA Wibowo S
AgriPeat Vol. 17 No. 02 (2016): JURNAL AGRIPEAT VOLUME 17 NOMOR 02, SEPTEMBER 2016
Publisher : Fakultas Pertanian Universitas Palangka Raya

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A study has been done to know earthworms diversity on land with different resources of organicmatter in North Lampung area, Sumatera.The land were secondary forrest, alley cropping with organicmater resources from gamal (Gliricidia sepium), soga (Peltophorumdasyrrachis) and mixture of G.sepium and P. dasyrrachis andrest land (without other organic matter resources except from harvestresidues of yellow corn (Zea mays).It have found seven species totaly in the research land. On thesecondary forrest was found seven species perfect. Changing it to alley cropping was consequenceone species lost (Metapheretima carolinensis) and changing it to general agriculture without otherorganic matter resources except from plant harvest residues was consequence two spesies lost (M.carolinensis and Dichogaster crawi). Different resources of organic matter on land were madeinquire factor of earthworms diversity that lived in the soil.
HUBUNGAN CACING TANAH DENGAN KONDISI FISIK, KIMIA DAN MIKROBIOLOGIS TANAH MASAM ULTISOL DI DAERAH LAMPUNG UTARA Wibowo S
AgriPeat Vol. 16 No. 01 (2015): JURNAL AGRIPEAT VOLUME 16 NOMOR 01, MARET 2015
Publisher : Fakultas Pertanian Universitas Palangka Raya

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A study has been done to know relation of earthworm with physic, chemist and microbiologic condition of ultisol acid soil in North Lampung, Sumatera. The research indicated there was strong positive correlation between contents of light and moderate fractions of soil organic matter and Corganik with earthworm population. There was strong positive correlation between contents of total fraction, light and moderate fractions of soil organic matter, C-organic and earthworm population with their freshweight. There was strong positive correlation between contents of total fraction, moderate and heavy fractions of soil organic matter, N-total and earthworm freshweight with sum of their cocoons. There was strong positive correlation between contents of light and moderate fractions of soil organic matter, C-organic, N-total and earthworm freshweight with weigth of their casts. The population, freshweight, sum of cocoons and casts weight of eartworms have positive correlation with soil porosity. Soil temperature have negative correlation on all of variables. Sum of fungi and totalmicroorganisms have not strong correlation on the earthworms. The low of soil pH have not negative effect on the earthworms, it was suspected because which was lived in there were all of adaptable species with ultisol acid soil.
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