The 50 lowest rolling SCC herds in Lancas ter DHIA as of the month of May are as follows: NAME GARY 4 JENNY BOWMAN BO JOY FARM DEAN R PATCHES IRA M HEISTAND JR ROY B SENSENIG JOHN S NOLT MEADOW-WOOD FARM SARRYLAREBECCA REITER CLAY FARM NATHANIEL D. STOLTZFUS LEONARD J STOLTZFUS BO JOY FARM LEE NONE FARM ROB-BONNIB WENTWORTH WATERLOO FARM SONNEN SPRINGS FARM CARL4DARLENE BBERLY NORMAN R NOLT SAMUEL F LONG JOSEPH B STOLTZPOS DALE NEILER GORDON E HERR Top 50 Protein Herds, Lancaster DHIA For The top 50 protein producing herds for May in Lancaster DHIA are listed as follows: MANS DALE R HBRSHBY MARVIN R STOLTZFDS SOGENS & SOSAN HESS DONALD B TRIMBLE ABRAHAM SHELLY JR NATS+TRISH STOLTZFDS JONAS S STOLTZFDS JR NSA-LAND FARM BLVIN+DORCAS REIFF FRANK GRAYBILL GARY LEE MASE JOSEPH C NIVSLL JOHN H HOWARD EARL I ANNA MAE REIFF DENNIS E TICE STEPHEN S RIEHL JEFFREY L ADN6ST RAT LIN FARM EARL N LANDIS ' ROBERT L SHELLY CLAY FARM JOHN E COLEMAN JR NORCROSS, Ga. Plants provide clues to nutrient problems in the field if we pay attention to the symptoms they show. Unfor tunately, by the time visual symp toms are observed, the potential yield of the crop has probably been severely reduced. This “hid den hunger” is one of the biggest yield robbers. Know the growth stages and ex pected development rate of a healthy crop. This will be helpful in identifying deviations from nor mal growth often the first sign of nutrient deficiences. If growth is unusually slow or if plants ap pear stunted, take leaf samples for laboratory analysis. Know the common nutrient deficiency symptoms for the crops you are growing. For many crops, nitro gen deficiency causes yellowing of the leaf tissue (along the midrib of grassy plants), usually visible on lower leaves first. Supplement al nitrogen application may help recover some lost yield potential if the crop is not yet fully developed. Potassium deficiency causes leaf margins to turn yellow and eventually die. Lower leaves ex hibit symptoms first, because part of the potassium is moved from Lowest SCC RHA NO BRD SCC COWS TOWN NOTTINGHAM QUARRYVILLE LEBANON ELIZABBTHTONN NOTTINGHAM NEW HOLLAND LEBANON NARVON LITITZ LEOLA GAP QUARRYVILLE GORDONVILLB QUARRYVILLE GAP RICHLAND READING LEOLA PEACH BOTTOM LANCASTER EAST EARL NOTTINGHAM TONN KINZERS LSOLA MARIETTA PEACH BOTTOM MANHEIM HONEY BROOK HONEY BROOK QDARRYVILLE MOUNT JOY HBRSHBY LEBANON COLOMBIA NILLON STREET EPHRATA COLOMBIA CHRISTIANA ELIZABETHTOWN LITITZ MANHEIM MANHEIM LITITZ RONKS them to the more actively growing parts-of the plant when insuffi cient amounts of potassium are available for normal growth. Re sponse to supplemental potassium applied after symptoms develop is not very likely, but increasing po tassium on that area next year may help prevent recurrence of the problem. Phosphorus deficiency shows up as a purple coloration of newly developed leaves. Since phos phorus is critical to sugar utiliza tion in plants, its deficiency leads to a buildup of sugar in the leaves and reduced chlorophyll content, allowing the purple pigments to be more visible. Phosphorus defi ciency may be induced by re stricted root growth or cool tem peratures. Nutrient applications can be adjusted to prevent recur rence of the deficiency in succes sive years. The symptoms may disappear as the root system ex pands and growing conditions im prove. Nutrient deficiency symptoms are often actually caused by other problems such as insect feeding, compaction, poor root develop ment. disease injury, competition from weeds, poor drainage or me- Lancaster DHIA Herds For May 73 49 115 11 116 79 119 51 140 79 141 39 143 244 149 38 155 56 156 41 158 60 160 20 161 33 161 51 163 58 164 53 168 87 169 43 170 47 170 37 170 64 173 80 STEPHEN F STOLTZFUS WARREN A SCHMUCK DAVID R WENGER DANIEL B STOLTZFUS GORDON 4 CAROLE HOOVER DAVID K STOLTZFUS MOUNT VIEW ACRES CLAIR N OBERHOLTZBR EL-DELL FARM MIRE S ZOOK KENT HOFFER AARON R ZEISET TRITOWN FARM MAR MULLDALE FARM RHA MILK RHA NO. PRO CONS Scout For Nutrient Deficiencies Lancaster D§/ry Herd Improvement Assoc. 1592 O/cf Line Ret. Manheim, PA 1Z545 fZIZJ 995-5990 CHRISTIANA PEACH BOTTOM MANHEIM HONEY BROOK GAP PEACH BOTTOM EPHRATA ELIZABETHTOWN LITITZ HONEY BROOK LEBANON LEOLA LEOLA ODARRYVILLB chanical injury to the plant. These problems inhibit the uptake or utilization of available nutrients. The real cause may be masked by other symptoms, so don’t be too quick to diagnose the cause-effect relationships. On the other hand, maintaining adequate nutrient availability will often reduce the impact of these other yield limit ing factors. Make use of old tools as well as new technology to help detect, identify and correct nutrient prob lems. Soil testing is one source of clues. With the availability of more intensive sampling data, areas of low nutrient levels may be easier to locate. Make a special ef fort to check such areas. Plant analysis is another useful tool for identifying nutrient deficiencies. Take samples from suspected de ficient plants and also from healthy plants for comparison. Standard sufficiency threshold values are available for most crops, but (he comparison ap proach may be more useful in field diagnostics. Quick-test kits can be used as a first cut analytical tool. Such tissue tests should be con firmed with laboratory analysis before making major nutrient Lancaster 'DHIA DARYL + SAM MARTIN CDRTIS E AIERS i SON ROY E SENSENIG CHRIST S FISHER NOAH N MARTIN STEPHEN L HEAVER KARL N HERR DAVID K STOLTZFDS PARKE H RANCK JR NEVIN S HORNING SIXCORNER FARM THOMAS C LAPP J ELMER STOLTZFDS DENNIS & KAREN NEAVER SHELMAR ACRES JOHN ALLEN WENGER GERALD MARTIN RANDY ANDREWS JAY RICHARD GROFF LEROr H. HOOVER RICK 4 MIN BRENNSMAN TRITOHN FARM JOHN N. BDRKHOLDER VERNON H HEISEY LESTER MARTIN HEAVER HONSTBAD FARM BRANDYVALE FARM LINDEN DALE FARM management decisions. lon-specific electrode tools are useful for in-field analysis. A sam ple of plant sap (or a diluted sam ple) is squeezed onto the electrode and the electronic display pro vides a reading calibrated for the relative nutrient content of the plant sap. Here again, confirma tion with laboratory analysis is de sirable, but research has shown these electrodes are reliable if properly calibrated. If possible, use global position ing systems (GPS) to document £f Unoster Farming, Saturday, June 29, 1996-D3 MEADOW VISTA FARM ED STOLTZFOOS THOMAS ARROWSHITH TOM AARON MICHEAI L CASSEL BO JOY FARM NELK SHADE HOLSTEINS LUTHER R PATCHES SAMUEL L ALLGYBR DANIEL E KING NOAH N MARTIN SAMUEL K LAPP JR DANIEL B ZOOK JR CARL E & NANCY G BRANDT GAP QDARRYVILLE NOTTINGHAM HONEY BROOK KIRKNOOD STEVENS OXFORD PEACH BOTTOM RONKS LITITZ LEOLA GAP HONEY BROOK NEN HOLLAND MODNI JOY LEOLA EPHRATA LANCASTER MANHEIM NEN HOLLAND QDARRYVILLE LEOLA WASHINGTON BORO MANHEIM NBWMANSTOWN NEN HOLLAND HONEY BROOK RONKS &IPA BA INBRIDGE LEOLA PEACH BOTTOM QOARRYVILLB MANHEIM QOARRYVILLB QOARRYVILLB MANHEIM NARVOH LANCASTER KIRKWOOD LANCASTER GORDONVILLB MANHEIM May the specific geographic location of deficiency symptoms and where soil and plant samples are taken for analysis. The GPS coordinates can link these observations to othet data bases such as soil sur vey, soil test data and yield maps. These tools are all helpful in deter mining the true cause-effect rela tionships resulting in the nutrient deficiency. If GPS is not avail able, take detailed notes on where symptoms occur in the field. This will be valuable for future man agement decisions. 196 159 197 54 198 53 198 23 199 55 199 52 200 70 200 43 203 42 205 38 206 53 207 44 207 33 209 76