![]() ![]() Dilution of liquid pesticides at various concentrationsĮxample: Directions call for a 1:200 dilution. Tables 4 through 7 help determine correct application rates for various pesticides. Tables 1 through 3 help determine equivalent measures for liquid (volume) or dry (weight) chemical substances and also converting metric to English units. A brief explanation of how each table is used is provided. Tables for fertilizer injector calibration using a conductivity meter, as well as pre-plant application rates for various soil mix components and amendments, also are provided. A number of formulas for calculating fertilizer application rates on a parts-per-million basis are given. This publication is designed to help growers make these calculations and conversions and to provide other data useful in the management, planning and operation of horticultural enterprises. Metric units of measure can further complicate conversion. Pints, cups, ounces, tablespoons and teaspoons often are the common units of measure. However, greenhouse and nursery operators, landscape professionals and orchardists often must convert these recommendations to smaller areas, such as row feet or square feet per tree or per pot. Pesticide and fertilizer recommendations often are made on a pounds-per-acre or tons-per-acre basis for field production. Formulas for calculating variously shaped areas. ![]()
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