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t EXPLAATION.OF SOIL ANALYSIS REPORT r
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<br /> %ORGANIC-MATTER AND ESTIMATED NTROGEN RELEASE(ENR): Calcium Carbonate Equivalent(cce): Some examples. I
<br /> The q'Crganic Matter content is determined chemically on the dried-screened soil t Pure ground calcitic limestone(calcium carbonate},=100
<br /> sample. Howavaf,the total organic content may be somewhat higher than reported because Pure ground dolomitic limestone(calcium magnesium carttooate)-109
<br /> larger places of plant and animal residues are screened out prior to analysis. Only a part of �' Hydrated lime gealcium hydroxide)=135 +�
<br /> the total nitrogen in the organic matter of a soil will become available for plant use during the Burned lime(calcium oxide)=173 -
<br /> growing season. Many factors such-as:Lsotlmoisture,soil tomparature,the son's physical
<br /> condition,and the amount and type of crop residues present all have an effect.on bacterial Fineness Factor(ii): Calculated as follows.
<br /> action.Theralore,theENRvalueisonlyagl fdg101henftrogensupplyyavailableforthegrowing C. Add u the laliawin values... Y
<br /> crop.For additionaiinformation onniVogenrsSeaseand recomit."; ationguidesSeeourbook i p m O'
<br /> "Soil and Plant Analysis', 5 r Percent passing M4 sieve x 1.0
<br /> Percent passing#20 sieve minus percent passing 1t40 sieve x 0.6
<br /> rC Percent passing 910 sieve minus percent passing#20 sieve z 0.3
<br /> Material that does not pass through a#10 sieve Is considered to be relatively non-effective.
<br /> CONVERSIONS:To convert tolblithetjpedisoil and tillagadapthshould beconsidered
<br /> Most m€neral Soils weiggh approximately 2 million pounds(dry,i elght)for an acre of soil Moisture Factor(m$:=
<br /> 61/2-7 inches deep.An acre of soil 49 itichec deep weighs approximately 3 million pounds. 100
<br /> In the past,-most laboratories that rel 000d results in lbs,per acre were considering 2-million t
<br /> lbs of soil per acre(resuns in ppm x 2.=Ips per acre). However,*Ilh deeper tillage practices co Lime score=cce x 1t x ml t
<br /> used today'many growers are dealing with�ngariy 3 million lbs of soil per acre. Common agricultural lime(70-score)may exist as 90 cce x 0.85 ft x 0.90 mf
<br /> Conversion Tibia- ' Tree following table is a general guideline for use of common agricultural lime waft a Ilmescore
<br /> - t- ++ T of 70- For other liming materials,divide 70 by the known lime score then multiply by the rates
<br /> Ill 2 Million lbs Q, 3 Million lbs in the table.
<br /> Results - of soil per acre g. Results of soil per acre r-t r
<br /> to ppm 6 1/2-71n.deep ', In ppm 9 -10 in.deep, Tons/acre agricultural time{TQ-score)par 6 titch depth
<br />'r P r 2 Ihs per acre of P P x 3 - lbs per acre of P y' Adapted from"Methods of Soil Analysis"Pari 2,ASA Publication,
<br /> x 4.61.. lbs per acre o4 PzOs x 6.9 lbs per acre ori PiOs using the SMP single buffer method.
<br /> K x .2 - lbs per acre of K K x 3 - lbs per acre of K Suffer Index t; Mineral Sail Organic SAIF
<br /> x 2.4 lbs per acre of K20 x 3.6 - the per acre of Kao SMP pit o pH 6A To pH 5.5 To pH 5 5
<br /> Mg x 2 - lbs per acre of M Mg x 3 the per acre of Mg 7.0 none, - none none
<br /> Mg 6.9 none' 0.5 none
<br /> Ca x 2 -- lbs par acre of Ca Ca x3 Itis per acre of Ca 6.8 0.5 1.0 none
<br /> S x 2 0• lbs per acre of S S x 3 - Ito per acre of S• 6.7 { 1.0 1.5 none
<br /> S k S - lbs per acre of SO4 S x 9 lbs per acre of jf04 6.5 2.0 3.0 1.5 p
<br /> a.Zn,Mn, a,Zn,Mn,
<br /> Fe,Cu,Me j Fe,Cu,Me _
<br /> x' 2 - lbs per acre of S. x 3 - lbs per acre of a, 6.4 2.5 3.5 2-0
<br /> Zn,Mn,Fe,Cu,Me Zn,Mn,Fe,Cu,Me 6.3 , 10 4.0 2-5
<br /> + 6.2 T 3.s 4.5 3.0
<br /> �- 6.1 0 4.0 5.0 3.5
<br /> PHOSPHORUS. 14 6.0 -4.5 6.0 4-0
<br /> Two different tests are made and reported for availability of phosphorus in re Soil 5.9 5.0 6.5 4.5
<br /> sample.The P and NaHW'-P phosphorus tests are routinely run on ail A& L Western ' 5.8 _ y�6.0 7.0 4.5
<br /> Laboratories reports.` 5,7 --6.5 8.0 5.0
<br /> {J 5-6 7.0 9.0 5.5
<br /> Weak Bray(P,)-This method determines the amount of readily avaltable ;t 5.5 x.7.5 9.5 6.0
<br /> phosphorus in the soil. A level of at least 20 ppm of P is desired for averagesty Exam le: ll the SMP buffer index reads 5.9 then one would require 5.0 tonsfat to raise SOIL
<br /> .=crop production and a level of 30 ppm of P or more Is desired for top yields of C! pH of a mineral soil to 6.0 or 6.5'tans,ac to raise It to 6.5.4,5 tonslac would be required 10 raise
<br /> most crops an organic soil to 5.5. Limit ap'�ficatiors to less than 4-5 tonsrac at a lime.
<br /> Strong Bray(P:)-This malhod determines tha amount of readily avallZro If the SOIL pH is 6.6 and above,�o*buffer index will be de(ermined since lime would not be
<br /> 4 hosphor0s plus a pan otthe active reserve phosphorus In the sail. A level of al ,Boded for most crops.Crops raised on 6rgan c so'!s usually do not benefit from liming unless
<br /> Feast 40 ppm P and preferably 60 ppm of P ormora is deslred for guo^l yia ds
<br /> 'of most sops. i, !+ the sail pH is less than 5.3..
<br /> Sodium Bicarbonate(HCO,-P)-This method determines the amount urfr�adily 4- LIMING:
<br /> available.phosphorus in calcareous soils,(having free lime present.)A levei of at-- 7 L 1
<br /> least 1 p m P and
<br /> relorable.15 ppm of P or more is desired for good €alds of
<br /> most crops.For adX io.nal Information on phosphorus availability and rocornmen- Apply€ime only a>BPahe soil has been tasted. Toa much lime can tie as harmful as
<br /> dation guides see our-hook`Soil and Plant Analysis' -
<br /> CATION EXCHANGECAPAC TY CIC: 1.r
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<br /> , ( � Lime trust do thoroughly mixed with the soil for maximum effectiveness.
<br /> Thi Callon exchange capacity(C.E.C.)IS a measure of the capacity of a SoH'16 hard t`- c'
<br /> exchangeable cations. Tftesa Endtvde Hydrogen(W),Calcium(Cir-),Magnesium(Mg•'), It both magnesium and calcium are needed,apply dolomitic lima to help supply
<br /> Potassium(K4),and Sodium(Na,). magnesium.
<br /> r C.E.C:IsmaasuradInterms ofmllllequhralents(meq.)par Io0gmmsofsoil.itdapends EXCESS LIME:
<br /> largely on the amount and type of day present and the'organic matfercontent.The larger this i
<br />( value,the more cations the soil is able to hold against leaching.
<br /> r PERCrNTCATIONSATURAT)OfQ' Avisualratingoffreelimeprwent. Soils having high amounts offree lime available
<br /> 0 L will have associated probinmsan the availabffily of major and minor elements and difference
<br /> The balance for the soil colloid ree
<br /> commendd by most soil scientists is 651075pp4rcen[ inchoice oramoumolsoil ar5entlments.
<br /> ra1rjum,10 to 15 percent magnesium,end tram 2 to 55 percent potassium.
<br /> `l SOLUBLE SALTS:
<br /> The periceni calloosaiurall ion Iscalcolalod trorrithe C.E.C.and percent saturaticirof Ca,`^
<br /> Mg K,H;and Nails reported to assist ou in determining the balance of cations in your Q11.For':a-
<br />> l For information rete,to our book,'Soil and PId.nt Analysis'.
<br /> additional Information sea our bock Soil 8 Plant Analysis". -
<br /> PH: ✓ SULFUR:
<br /> Soil pH:ThasoiipHIsmeasured all asaiuratedpaste,The soil pHmeasures theacllveAll crops needsuitur-Tnohigherthenitrogonuptakebyserap,thegreaturthe ne&-
<br /> sots acid'Ry or alkatimty. Mineral soils should have a pH of 6.010 7.0 for most crops,while.a pH m of available sulfur should be maintained for most crops. For'
<br /> additional range of 5,5 to 6.0 is adequate for organic soils. for sulfur. levet of 15.20 pp i
<br /> intorfnatlon on.availability of sullur.andVmakitsg sulfur recommendations see o�r�
<br /> Buffer Index: The buffer pH is determined with the Shoemaker.McLean,and Pratt rt book"Soil and Plant Ana!ysis'. -. •T
<br /> tSMP)buffer solution. The limatequlrement Is determined by the depression of the duffer pH
<br /> byacidihyinthe soil sample.The amount of limestone needed toheutraiixatheacidity present�5 �
<br /> i has already bean determined and the following table is a general guide,bin-variations from . MICRONUTRIENTS: ,,ye,,,+.�•-�
<br /> other ubiished guides may of duo to differences in Ilmestono fineness,neutalizing vaiue, -
<br /> and ipPovrdappth. - Tho avallabfelevelsolmicronulriemsare,'T ed from very low to very high.EbweSitbr
<br /> LIME REOl1IREMENT: applying the recommended amount of a cenain�stfdronufrlent with a low rating will n5s
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<br /> time rjulremantdependsuponthequallty(limescore)olihelimiogmaterial usk.This 3 necessarily ensure a crop response because of•=t'ha�tany factors which may Influence
<br /> Is a function of: -' micronutrient rsponse. Some of the factors which influence response are: rapidly changing.
<br /> total neutralizing value or caldvm carbonate equivalent(race),degree of fineness or particle soil pH,excessive leaching.CropVaraty,and plant population. For additional Information ons
<br /> f size(r,),and the moisture lector(cot), why plants need micranur oohs,their availability, into"ons with otther nutrients,and a'
<br /> + Q recommendation guide see our book Soil&Plant Analysis
<br /> "Our reports and letters are for the exclusive and confidenliailz.se of our clients,and may not be reproduced in whole Orin < ,
<br /> part,nor may any reference be made to the work.,the results nr the company in any advertising,news rr'leasc,or other public ' Q
<br /> announcements without obtaining our prior written authorization" Copyright 1977 Revised 6196 r
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