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  1. 3181

    Estimating the impact on maize production by the weed Parthenium hysterophorus in Pakistan by Ruhollah Naderi, Kazam Ali, Abdul Rehman, Sergio Rasmann, Philip Weyl

    Published 2024-02-01
    “…To assess the impact of P. hysterophorus on maize crop losses in Pakistan, a 2 year field experiment was carried out at the CABI Rawalpindi campus in 2019 and 2020. Yield was measured on maize plants planted along with different densities (0, 1, 2, 4, 8, and 16 plants per m2) of P. hysterophorus. …”
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  2. 3182

    How Much Space Does My Shade Tree Need? Planting Space Recommendations for Medium and Large Trees in Florida Cities by Deborah R. Hilbert, Andrew Koeser, Brooke L. Moffis, JuWanda G. Rowell, Drew C. McLean

    Published 2020-10-01
    “…To maximize the benefits provided by urban trees, we need better-informed tree selection and larger planting spaces with the capacity to support big-canopy trees. This new 8-page fact sheet is intended to help arborists, urban foresters, landscape designers, landscapers, and anyone else responsible for the planting of trees in developed areas make informed decisions regarding the planting width requirements of the trees they select. …”
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    Field Diagnosis and Management of Phytophthora Diseases by Stephen H. Futch, James H. Graham

    Published 2005-09-01
    “…These symptoms result from the inability of the tree's fibrous roots to take up nutrients and water from the soil, as well as blockage of movement to the tree's canopy via lateral roots and the trunk. The movement of photosynthates 'downward' is also impaired. …”
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