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(Soil Testing and Soil pH Management for Vegetable Crops Grown in Florida\
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(Applicable Technical Criteria)Tj
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(The amount of lime to use can be found in the )Tj
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(recommendations by the Florida Extension Soil )Tj
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(Testing Laboratory in Gainesville.)Tj
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(Operation and Maintenance Issues)Tj
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(Keep records of the soil testing results for each )Tj
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(field and crop. )Tj
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(Other Considerations)Tj
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(\245 The price of soil testing is largely offset by the )Tj
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(fertilizer you could save. Your yields may )Tj
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(increase if you discover that any nutrients were )Tj
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(previously lacking, or the pH was unsuitable.)Tj
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(\245 Liming, fertilization and irrigation programs are )Tj
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(closely related to each other. An adjustment in )Tj
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(one program will often influence the other. To )Tj
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(maximize overall production efficiency, soil and )Tj
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(water testing must be made part of any fertilizer )Tj
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(management program. )Tj
-7 -23 Td
(\245 Over-liming can reduce the accuracy with )Tj
7 -14 Td
(which a soil test can predict the fertilizer )Tj
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(component of the crop nutrient requirement.)Tj
-7 -24 Td
(\245 The element calcium \(Ca\) is often confused )Tj
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(with high pH. Just because Ca is being supplied )Tj
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(to the soil, this does not mean the pH will rise. )Tj
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(With hi-cal or dolomite lime, it is the chemistry )Tj
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(involving the carbonate ion \(CO)Tj
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(in an increase in pH, not the addition of Ca. )Tj
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(\245 The use of sulfur \(S\) to reduce soil pH is )Tj
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(practical only on mineral soils that have been )Tj
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(over-limed. )Tj
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(\245 Soils normally high in pH, such as the marl and )Tj
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(gravelly loam in Dade county, cannot be )Tj
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(economically changed to more suitable pH )Tj
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(ranges. On these soil types, band placement of )Tj
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(fertilizer is an economical approach to )Tj
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(overcoming the effect of the high pH.)Tj
-7 -24 Td
(\245 Other means to overcome high pH might be to )Tj
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(inject nutrients via drip irrigation so that the )Tj
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(nutrients are applied nearer to the root zone. For )Tj
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(micronutrients, foliar application might be a )Tj
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(by-passing any effects the soil might have on )Tj
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(micronutrient availability.)Tj
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(Additional Readings)Tj
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(Soil Testing, Circ. 239, Fla. Coop. Ext. Ser., )Tj
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(IFAS, Univ. of Fla. http://edis.ifas.ufl.edu/SS156 )Tj
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(Producer Soil Test Information Sheet, SL135, )Tj
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(Fla. Coop. Ext. Ser., IFAS, Univ. of Fa. )Tj
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(http://edis.ifas.ufl.edu/SS186 )Tj
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(Lime and Liming \320 a Florida Perspective, SL58, )Tj
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(Fla. Coop. Ext. Ser., IFAS, Univ. of Fla. )Tj
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(http://edis.ifas.ufl.edu/SS161 )Tj
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(Producer Soil Test Information Sheet, SL135, )Tj
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(Fla. Coop. Ext. Ser., IFAS, Univ. of Fla. )Tj
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(http://edis.ifas.ufl.edu/SS186)Tj
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(Commercial Vegetable Fertilization Principles, )Tj
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(Circ. 225E, Fla. Coop. Ext. Ser., IFAS, Univ. of Fla. )Tj
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(http://edis.ifas.ufl.edu/CV009 )Tj
20 -24 Td
(Commercial Vegetable Crop Nutrient )Tj
-20 -14 Td
(Requirements in Florida, SP177, Fla. Coop. Ext. Ser., )Tj
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(IFAS, Univ. of Fla. http://edis.ifas.ufl.edu/CV001 )Tj
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(Liming of Agronomic Crops, SS-AGR-153, Fla. )Tj
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(Coop. Ext. Ser., IFAS, Univ. of Fla. )Tj
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(http://edis.ifas.ufl.edu/AA128 )Tj
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