Hanna-instruments HI 38050 Manual de usuario

Nitrate TestHandbookSoil Scienceand ManagementHI 38050Nitrate Test Kitfor Soil andIrrigation WaterManufacturers since 1978ISTR38050 01/01 PRINTED IN I

2INTRODUCTION ... 4THE NITROGEN CYCLE ...

3Dear Customer,Thank you for choosing a Hanna Product.Please read the instruction manual carefully before using the chemical test kit. It willprovide

4Nitrogen (N) is an indispensable element for plant life. It is present in proteins,vitamins, chlorophyll, etc. Nitrogen allows the development of the

5Note: Legumes (soybean, pea, clover, alfalfa, etc.) are able to take atmospheric nitrogen by asymbiotic association with Rhizobium bacteria.A very im

66) From this mixture, take the quantity of soil that you need for the analyses.7) Crumble the large chunks and distribute the soil sample on plastic