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- Peru
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- TropSoils [sic], the first three years, an other usaid supported study/document from 1985 PN-AAV-845
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- Peru
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- TropSoils triennial technical report 1981-1984, an annual report from 1985 PN-AAW-903
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- Peru
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- Proceedings of the international symposium on red soils, a conference proceedings/paper from 1986 PN-ABJ-622
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- TropSoils : technical report 1985-1986, an other usaid supported study/document from 1987 PN-ABJ-588
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- Peru
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- Administrative management review of the soil management collaborative research support program, a special evaluation from 1988 XD-ABC-510-A
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- Weed population dynamics and weed control in the Peruvian Amazon, a journal article from 1990 PN-ABG-888
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- Soil erosion studies in Peru, a journal article from 1990 PN-ABG-889
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- Low soil nitrogen mineralization rates in a humid tropical pasture, a journal article from 1990 PN-ABQ-813
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- CRSP - soil management, 10/17-21/89, an evaluation summary from 1991 PD-ABC-510
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- TropSoils technical report, 1988-1989, an other usaid supported study/document from 1991 PN-ABK-055
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- Peru
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- Organic matter contained in soil aggregates from a tropical chronosequence : correction for sand and light fraction, a journal article from 1991 PN-ABK-214
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- Agroforestry in acid soils of the humid tropics, a journal article from 1991 PN-ABK-216
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- Investigaciones y usos de la roca fosforica en el Peru, a conference proceedings/paper from 1991 PN-ABK-402
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- Conservation tillage in the humid tropics of Peru, a conference proceedings/paper from 1991 PN-ABK-468
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- Efecto de los animales en pastoreo sobre las propiedades fisicas de suelos de la region tropical humeda de Peru, a journal article from 1991 PN-ABK-470
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- Peru
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- Potassium in two humid tropical ultisols under a corn and soybean cropping system : II. dynamics, a journal article from 1992 PN-ABL-710
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- Spatial analysis of soil hydraulic conductivity in a tropical rain forest catchment, a journal article from 1992 PN-ABQ-806
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- Land clearing and reclamation of ultisols and oxisols, a journal article from 1994 PN-ABR-406
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- Peru
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- Socio-economic impact analysis of technologies generated by the soil management and other CRSPs in the humid tropics : project report, an other usaid supported study/document from 1994 PN-ABT-051
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- Soil phosphorus fraction dynamics during 18 years of cultivation on Typic Paleudult, a journal article from 1994 PN-ABX-289
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