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Hanna Instruments HI 38050, Handbook

The Hanna Instruments HI 38050 is a high-quality handbook/manual designed to enhance your experience with our product. Easily download this comprehensive user guide for free from our website, providing you with step-by-step instructions and valuable information to help you maximize the performance of your HI 38050.

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Nitrate Test
Handbook

Soil Science
and Management

HI 38050
Nitrate Test Kit
for Soil and
Irrigation Water

M a n u f a c t u r e r s   s i n c e   1 9 7 8

ISTR38050

01/01

PRINTED IN ITALY

w w w . h a n n a i n s t . c o m

HANNA LITERATURE

Hanna publishes a wide range of catalogs and handbooks for
an equally wide range of applications. The reference literature
currently covers areas such as:

•

Water Treatment

• Process
• Swimming Pools
• Agriculture
• Food
• Laboratory
• Thermometry

and many others. New reference material is constantly being
added to the library.

For these and other catalogs, handbooks and leaflets contact
your dealer or the Hanna Customer Service Center nearest to
you. To find the Hanna Office in your vicinity, check our home
page at www.hannainst.com.

Summary of Contents for HI 38050

Page 1: ...s for an equally wide range of applications The reference literature currently covers areas such as Water Treatment Process Swimming Pools Agriculture Food Laboratory Thermometry and many others New reference material is constantly being added to the library For these and other catalogs handbooks and leaflets contact your dealer or the Hanna Customer Service Center nearest to you To find the Hanna...

Page 2: ... fill each glass vial with 5 mL of the extracted sample and follow the test procedure as for irrigation water steps 2 to 5 18 Keep it at a distance of 30 40 cm 12 16 from the eyes to match the color Rotate the disc while looking at the color test windows and stop when you find the color match 19 Read the value in the result window and multiply it by 2 to obtain mg L ppm of nitrate nitrogen N NO3 M...

Page 3: ...p 1 large funnel filter paper discs 120 mm 100 pcs 1 brush 2 calibrated plastic vessels 50 mL with cap 1 sample cup 2 g 1 plastic pipette 3 mL 2 spoons Note Any damaged or defective item must be returned in its original packing materials 10 TEST PROCEDURE FOR DETERMINING NITRATE IN SOIL SAMPLES CALCIUM SULFATE EXTRACTION 7 Remove the cap and fill the Dem ineralizer Bottle with tap water 8 Replace ...

Page 4: ...abundant element present on our planet and can be found in many different forms Only a very small part of the total nitrogen is available for plant growth The exchanges between available and unavailable nitrogen combine to form a complex system which is called the nitrogen cycle INTRODUCTION THE NITROGEN CYCLE 9 READ THE ENTIRE INSTRUCTIONS BEFORE USING THE KIT 1 Using the plastic pipette fill eac...

Page 5: ...s area take 1 or 2 samples per 1000 m2 0 25 acre Even for smaller areas 2 samples are recommended the more samples the better the end results because the end sample is more representative For a small garden or plot 1 sample is sufficient 2 Avoid extracting samples from soil presenting obvious anomalies and from border areas near ditches and roads 3 Sample quantity Take the same quantity of soil fo...

Page 6: ...N ha is recommended The exact amount of fertilizer required depends on the type of crop A nitrogen concentration between 20 and 25 ppm for example is considered as optimal for corn Above 26 ppm addition of more N fertilizer is not likely to increase yield To adjust the nitrogen concentration above 10 ppm of N NO3 in soil add 11 kg N ha of side dressing for each incremental ppm of nitrate nitrogen ...

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