Wednesday, January 04, 2006

New Method of Wheat Harvesting

A wheat-harvesting system that could save farmers money has been developed by an Agricultural Research Service (ARS) scientist.

Today's farmers use a wheat-harvesting combine that cuts, threshes and cleans the wheat. Now ARS agricultural engineer Mark Siemens is investigating the benefits of using two machines to accomplish these tasks: a simple, low-cost harvester, and a stationary thresher.

Instead of cutting wheat in the same way as a combine, Siemens's harvester strips the wheat heads and stores them in a bulk tank, and then chops the standing residue into small bits. The stationary thresher separates the wheat from the chaff.

Siemens is studying the economic potential of segregating wheat with a fluidized bed, which separates solid materials according to density. Preliminary studies suggest this segregation process increases the consistency of grain quality, particularly with the soft white wheat used in pastries, cakes and cookies.

The modern combine found on almost all U.S. farms can harvest, thresh, separate and clean, but the expensive mechanisms that perform these operations can bring the price to $250,000. The components of Siemens's system are much less expensive, and one thresher could serve multiple farms, significantly lowering overall production costs.

Siemens's system also eliminates many of the problems associated with stubble, the straw stems that remain in the field after harvesting. A typical combine cuts wheat about 16" above the ground, but lacks a mechanism to chop the remaining stubble, which can impede subsequent farm operations.

Common management practices--like flailing, burning and baling the residue--are expensive and time-consuming. The field residue also can impede the performance of seed planting drills and inhibit seedling growth.

The one-pass harvester includes a flail mower to reduce stubble into small bits that are less likely to plug seed drills or concentrate in seedling-choking piles. Siemens and his colleagues are currently investigating how to improve the system\'s economic and time-saving benefits.This research was conducted at the ARS Columbia Plateau Conservation Research Center in Pendleton, Ore.



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AGRI-INFO/JANUARY 4, 2006



TITLE: A GOING AGAINST THE GRAIN: A NEW TAKE ON HARVESTING


ALAM BA NINYO NA NATUKLASAN NG MGA EKSPERTO ANG BAGONG WHEAT HARVESTING SYSTEM NA MAKATUTULONG SA MGA MAGSASAKA NA MAKATIPID SA KANILANG PERA?

ITO AY TALIWAG SA TRADISYUNAL NA PAG-ANI NG TRIGO, KUNG SAAN KAILANGANG PUTULIN, KISKISIN AT LINISIN ANG TRIGO.
ITO ANG NAGTULAK KAY AGRICULTURAL ENGINEER MARK SIEMENS PARA GUMAMIT NG DALAWANG MAKINA NA MAKUMPLETO ANG NATURANG OPERASYON – ITO AY ANG KUMBINASYON NG SIMPLE, LOW COST HARVESTER AT ISANG STATIONARY THRESHER.

SA HALIP NA PUTULIN ANG TRIGO, SA PAMAMAGITAN NG SIEMEN;S HARVESTER, BINABALATAN NITO ANG WHEAT HEADS AT INILALAGAY SA TINATAWAG NA BULK TANK AT SAKA TSINA-CHOP CHOP ANG NAKATAYO PANG RESIDUE NITO SA MALILIIT NA PIRASO.

ANG TRABAHO NAMAN NG STATIONARY THRESHER AY INIHIHIWALAY NITO ANG TRIGO MULA SA CHAFF. PINAG-ARALAN NAMANG MABUTI NI SIEMENS ANG ECONOMIC POTENTIAL NG PAGHIHIWALAY NG TRIGO SA TINATAWAG NA FLUIDIZED BED, NA NAGHIHIWALAY SA SOLID MATERIAL DEPENDE SA DAMI NITO.

SA MGA INISYAL NA PAG-AARAL ANG SEGREGATION PROCESS NA ITO AY NAKAPAGPAPATAAS SA CONSISTENCY NG GRAIN QUALITY, PARTIKULAR NA ANG SOFT WHITE WHEAT NA SIYANG GINAGAMIT SA MGA PASTRY, CAKE AT COOKIES.

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