Instruction Manual HI 99121 Soil pH Test Kit SPECIFICATIONS ISO 9000 Certified Company since 1992 h t t p : / / w w w . h a n n a i n s t .
Dear Customer, Thank you for choosing a Hanna Product. Please read the instruction manual carefully prior to use. It will provide you with necessary information for the correct use of the kit. Remove the test kit from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any noticeable damage, notify your Dealer or the nearest Hanna office immediately.
Plants absorb the nutrients dissolved in the soil water and the nutrient solubility depends largely on the pH value. Hence, the availability of elements is different at different pH levels (Fig. 2). Each plant needs elements in different quantities and this is the reason why each plant requires a particular range of pH to optimize its growth. For example, iron, copper and manganese are not soluble in an alkaline environment.
adding lime, the effects in clay soil can last for as long as 10 years, but only 23 years in a sandy soil. For an acid soil, we can use substances such as lime, dolomitic, limestone and marl, according to the nature of the soil (Tab.1). Soil Ameliorants Clay soil Silty soil Sandy soil CaO 30-50 20-30 10-20 Ca(OH)2 39-66 26-39 13-26 CaMg(CO3)2 49-82 33-49 16-33 Ca CO3 54-90 36-54 18-36 Tab.1.
4) Wash the electrode with tap water (not distilled) 5) Insert the electrode pushing it slightly into the soil to ensure proper contact 6) Observe the measurement 7) Wash the electrode with tap water (not distilled) and (using a finger) gently remove any soil remaining on the electrode (avoid using a rag or cloth) 8) Repeat the procedure in different locations in the field 9) Consider the average of the measured data For best result, it is advisable to measure the pH of a soil solution, using a sample of so
ORGANIC SUBSTRATE (PEAT AND MOULD) pH measurement of organic substrates is important in greenhouses and nursery growing pots. pH should be checked at the outset to make sure that the pH of the substrate bought is that desired (pH can change if too much time elapses from the date of packaging to the moment of utilization). A) Direct Measurement in pot If the substrate is not wet, add a little distilled water. Insert the electrode into the soil and measure.
ORCHARD PLANTS Preferred pH Range Apple Apricot Cherry Grapefruit Grapevine Lemon Nectarine 5-6.5 6-7 6-7.5 6-7.5 6-7 6-7 6-7.5 Preferred pH Range Orange Peach Pear Plum Pomegranate Walnut 5-7 6-7.5 6-7.5 6-7.5 5.5-6.5 6-8 VEGETABLES AND HERBACEOUS CULTIVATIONS Preferred pH Range Artichoke Asparagus Barley Bean Brussels Sprout Early carrot Late carrot Cucumber Egg Plant Lettuce Maize Melon Oat Onion Pea 6.5-7.5 6-8 6-7 6-7.5 6-7.5 5.5-7 5.5-7 5.5-7.5 5.5-7 6-7 6-7.5 5.5-6.5 6-7 6-7 6-7.
HOUSEPLANTS Preferred pH Range Abutilon African violet Anthurium Araucaria Azalea Begonia Camellia Croton Cyclamen Dieffenbachia Dracaena Freesia 5.5-6.5 6-7 5-6 5-6 4.5-6 5.5-7.5 4.5-5.5 5-6 6-7 5-6 5-6 6-7.5 Preferred pH Range Gardenia Geranium Hibiscus Jasmine Kalanchoe Mimosa Orchid Palms Peperomia Philodendron Yucca 5-6 6-8 6-8 5.5-7 6-7.5 5-7 4.5-5.5 6-7.5 5-6 5-6 6-7.5 MAN99121 10/99 PRINTED IN PORTUGAL ISO 9000 Certified Company since 1992 h t t p : / / w w w . h a n n a i n s t .
