D2-Lancaster Farming Saturday, January 3,1987 Fanners use no till and minimum tillage to save time, energy and soil. “However, many are not getting the soil savings due to cropping practices,” says Robert Hotchkiss, Soil Con servationist with the USDA Soil Conservation Service in Cham bersburg. A Dauphin County study has shown that as high as 81 percent of disk and chisel tillage is ineffective due to a lack of ground cover. Some farmers bale cornstalks for bedding. This leaves the ground surface bare over winter and greatly increases erosion. In other cases, farmers make too many trips over the field with chisel plows or disks. As a result, too little crop residue remains on the soil surface. Using a no-till planter leaves 95 percent of the residue on the surface. Chisel plows leave 50 to 80 percent per trip depending on type of chisel. Disks leave 25 to 50 percent of cover per trip while conventional plowing leaves 0 to 10 percent. A minimum of 2000 pounds of residue per acre on the surface is needed for effective erosion control. Fine textured residue left by crops such as soybeans and small grain is more effective pound-for-pound than coarse textured residues such as from corn and sorghum. “To be exact,” says Hotchkiss, “a pound of small grain residue is twice as effective as one pound of cornstalks.” According to Hotchkiss, there is an easy way to estimate the amount of residue produced by a crop. Multiply your crop yield in bushels per acre times the residue yield of your crop. Residue yields for common crops are: winter small grain, 100; spring small grain 60-75; corn 56; and soybeans 40. A 30 percent loss of cover over the winter is also included in the computations. Thus, an 80 bushel per acre com yield would produce 4480 pounds of residue less 30 CALF KENNELS Same Advantages As Hutches, w/lnside Feeding Compare theTSteltzf us Woodwork Calf Hutch Lifting Hook for eaiy handling Rear Vent ( Option t v (Option) \ .V A Sturdy Ix 4 conitroction Tilt Out Feeder (or/ Treated ikldi e»yacce««. exterior plywood ALSO AVAILABLE: TRACK FOR FASTENING CALVES' CHAIN TO CEILING OF HUTCH STOLTZFUS WOODWORK MFD. BY: Farmers May Not Get Savings of No-Till percent winter loss equals a spring cover of 3136 pounds of residue. At this production level, adequate erosion control would be obtained with the use of no-till planting and leaving all or most residue However, two trips over ITHACA, N.Y. - The Boyce Thompson Institute for Plant Research at Cornell University is establishing a distinguished lec ture series to examine a wide range of research advances in biotechnology and other areas in the life sciences. The annual series will feature 20 American and foreign scientists as speakers; the inaugural lecture is set for mid-January, BTI President Ralph W. F. Hardy announced. “The purpose is to bring to our Institute a breadth of distinguished scientists at the rapidly expanding frontiers of life sciences to discuss the latest research advances and share the opportunity with members of the broader Cornell community as well as the general public,” Hardy explained. Hardy, whose field is life sciences and who is an authority on biotechnology, said that the lec tures by scientists here and abroad will have an impact on the In stitute’s future research direc tions, with particular emphasis on modem genetic techniques and related areas of biotechnology. “From these new thrusts in life sciences will come the technology not only to revitalize agriculture in the United States but to help developing countries become self sufficient in food production,” he said, adding that the Boyce Thompson Institute is “positioning itself to be at the frontier in facilitating this change among the developed as well as the needy nations of the world.” Established in 1924 in Yonkers, N.Y., BIT moved to the Cornell . . Simple, efficient One Sheet eyeb olt and pin connector Metal Roof >9 Rt. 897 North - Gap, PA 17527 717-442-8972 the field with a tandem disk would incorporate 75 percent or more of the residue into the soil leaving less than 1000 pounds per acre on the surface. “The result would be an excellent opportunity for ex- Cornell Lecture Series To Explore Biotechnology campus in 1978. The Institute is dedicated to improving food and fiber production and maintaining environmental quality through research focusing on biological control, environmental biology, plant stress, and nitrogen and crops yields. Hardy became BTl’s president and chief executive officer on Sept. 1. He said that two lectures will be presented each month throughout the year, except July and August. In addition to lectures, the speakers will have the opportunity to hold an informal meeting, during lunch hours, with Cornell students, including those assigned to BTI scientists for research work. All lectures will take place in the Institute’s auditorium at 3 p.m. on Wednesdays. Specific dates will be announced later. The first lecture in the Boyce Thompson Institute Distinguished Lecture Series will be given by Robert B. Goldberg, professor of biology at the University of California at Los Angeles. He will discuss his efforts to improve the quality and quantity of seed proteins in food plants through genetic engineering techniques. Other scientists on the speaker list thus far are Roger N. Beachy of Washington University in St. Louis; Leroy E. Hood of the California Institute of Technology; Peter H. Quail, University of imperial Imperial Rib is custom-cut to the inch to fill your needs in lengths up to 45 feet, reducing or eliminating end laps. You get a tighter, stronger, more attractive building. le ling I Saving, 8 r - High sc *> Performance Quality r Windows 36” or 50” high wire ition I •v--., . 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Tentative topics include developing disease-resistant plants through genetic Wisconsin (Continued from Page Dl) domestic potatoes have four sets of chromosomes, a characteristic known as tetraploidy. Yerk and Peloquin want to use the wild pollen to transfer characteristics to domestic species, but they also want to keep the wild potato traits more ap parent in hybrid progeny. To ac complish this, they use a ■ jfJ READ ,* L LANCASTER FARMING FOR COMPLETE JM W AND UP-TO-DATE MARKET REPORTS RID mi f , j I 'iir Green, Royal Blue, Navy Blue, White, Gray, Bronze, Brown & Black. Strength, Durability and Beauty! For more information about protecting your cropland soil, contact the Soil Conservation Service office at 550 Cleveland Avenue, Chambersburg, or phone 264-7013. engineering; gene sequencing in plants, animals and humans; light regulation in plants; plant en zymes known to play key roles in photosynthesis; engineering crops with adequate resistance to her bicides; making farm animals more efficient through genetic engineering techniques; analysis of insect sex attractants at the molecular level; pesticide resistance; and fungal genetics. For more information about the lecture program, telephone Hardy’s office at (607 ) 257-2030. Scientists derivative of domestic potatoes to capture and preserve desirable traits from individual wild potatoes. “We’re not trying to introduce any specific characteristics into domestic potatoes,” Yerk says. “We’re trying to get a feel for ways to use the wild species and the differences that exist among and within them.” m|T-r\ COLORS I U% \ \ AVAILABLE »1\ \\ \ Red, Tan, i ll \ \\ \ Harvest Gold, 1 11 1 a Sherwood NOTE Please Call Us For Prices On Your Pole Shed Needs. We Can Supply You With All Materials Needed For Pole Shed Con struction At Very Competitive Prices. SQUARE BARN POLES Pressure Treated 13.12 11.25 8.25 4”x6" 20.95 18.50 6”x6” 2x6 CENTER MATCH TREATED BOARDS 12’ 4.99 4.17 SALES RD 2, Box 267, East Earl, PA 17519 Ctll us for low prices (717) 354-7561 22.50 19.20 15.95 44.75 19.90 29.9! 34.71 25.11 14’ 7.25 6.15
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