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HomeMy WebLinkAbout; Monroe Street & Marron Rd Improvements; Monroe Street & Marron Rd Improvements; 1990-05-14SO!P_ AHD PLAHJ LABORATORY, IHC. Orange Office Lab No. 33127 my 14, 1990 Santa Fe Lanc3scape Co. 215 So. Hwy. 101, Suite 103 Solana Beach, CA 92075 Attn: Jess L. Renteria Sr. Presic3ent MONROE & MARRON RD. If^lPRCVEMENT'S - SOIL SAMPLE RBC'D 5-9-90 Attached are results of agricultural suitability ard soil fertility analyses carrieca out on the Monroe & Marron Rc5. improvements soil sample received via mail on the above cjate. As intiicateca in your letter, the soil area samplecj will be hydrosee(3eca and also plantec] to 15 gal. eucalyptus trees. Soil Analysis Soil reaction is slightly to moderately acid with lime content low anc3 boron concentration belcw the toxic range. Hie salinity (ECe) level is low anc3 base<a on the SAR value, soluble sodium is adequately balanced by calcium and magnesium. In summary, the soil area represented by the sample received is non-saline and non-sodic in nature. Available nitrogen and phospliorus are low with potassium optimum. Calcium is slightJ-y low but well above the deficient range with magnesium well supplied. It should be noted that based on the half saturation data the soil area sampled is fairly sandy in te.xture. Recommenda tions For areas to be hydroseeded, the following materials should be included in the hydrcmulch form.ula: AM'T PER ACRE 300 lbs. 16-20-0 ammonium phosphate 300 lbs. Ureaform 38-0-0 1000 lbs. finely ground calcium carbonate or oyster shell lime If the CcaciLim carbonate or oyster shell lime recaraiieixled are not available, dolaiiitic lime could be substituted. P.O. Box 6!ifi6. Oi.-inge. Calllomia 92GI3-656G / (71-1) 282-8777 FAX (7M) 282-8575 P.O. Box 153. Sanla Claia, C^alilornia 95052-0153 / |-108) 727-0330 FAX (408) 727-5125 P.O. Box l6-!0. Bollovue. WastiHiglon 98009-1G48 / (206) 746-6665 •0"|0 ] SOIL AND PLANT LABORATORY, INC. Page 2 Santa Fe Landscape Co. r-lay 14, 1990 Tlie backfill aiix for use around the root ball of container grown trees and shrubs should be prepared as follows: 6 parts by volum.e on-site soil 4 parts by volujne nitrogen stabilized organic anendment 1 lb. 16-20-0 per cu. yd. of mix 10 lbs. calcium carbonate or oyster shell limie per cu. yd. of mix 2 lbs. iron stiLfate per cu. yd. of mix The above materials should be thoroughly blended at a central on-site location prior to use for backfill purposes. Mso, the iron sulfate should not contact cement surfaces since severe staining could cccur. While the Ureaform is a slow-release nitrogen fertilizer and since the soil appears to be sandy in texture and substantial leaching of nitrogen could cx;cur, it m.ay be necessary to apply a dry fertilizer during the establishnent period. If this is the case, the 16-20-0 should be uniformly broadcast over dry soil at the rate of 6 lbs. per 1,000 sq. ft. and followed vyith a normal irrigation at each fertilizing period;. Should there be any questions, please call. FORREST FUm4ER FF:alw ot^ and ^hni ^abo/cato/ty, 3no. P.O. Box 6565. Orange. California 9261 3-6r.66/(7i.:; 232-c F.AX (7 w) 282-S5/. P.O. Box 153. Santa Clara. Caiilornia 95052-0i53/(-i0S) 727-0330 FAX (^06! ?27-5 i25 P.O. Box T648, Bollevje, VVa.shincSon 9S0C9-i6"S-'(206) 7-6-6565 Santa Fe Landscape Co. 215 So. Hwy. 101, Suite 103 Solana Beach, CA 92075 SOIL PEFITIJIY AND /Y'.Ria.lL'IURAIj SUITmiLI'TY (A04) Orange Office Lab No. 33127 May 15, 1990 I.'Ccation 1 soil sa.nple rcic'd 5-9-90 Sam ffalf pie Sat. _Parts Per Million Drv Soil N03-N NH4-N .P04-P K Ca Mg pi Saturation Extr£tct Values Ca Mg Na K B r.\(;/r ne/i rr..:/ l ri8/ i r n-j S.AR OU.z\L 11 3 110 510 274 5.7 1.2 2.1 2.2 7.0 0.4 0.24 4.8 .L.av Half Saturation %-approx. fie.ld moisture capacity. Salinity = FCe (mirhos/cm at 25 degrees C.) SAR - Scxiium Adsorption Ratio.