Friday, May 12, 2006

Sowing Clover Mats to Shelter Weed Seed Eaters

ARS News ServiceAgricultural An ecologist with the Agricultural Research Service in Urbana, Ill., is experimenting with a novel method for enlisting nature's seed-eaters -- birds, rodents and insects, in this case -- to help fight giant ragweed, velvetleaf and giant foxtail, all major pests of Midwestern corn and soybean crops.

Adam Davis' approach is to create a natural ground cover of red clover in farm fields so that the small critters will spend more time foraging for the weeds' energy-rich seeds and less time dodging hawks or other sharp-eyed predators.

If creating such a haven for seed foragers sounds far-fetched, consider this: A single female cricket will eat up to 50 foxtail seeds a day. Mice and ground squirrels eat even more, according to Davis, at the ARS Invasive Weeds Management Research Unit.

Using wire cages baited with seed, along with computer modeling, Davis is compiling data to estimate the impact of small animals' seed foraging on annual weed populations in wheat fields where the clover covers are used. He is also comparing wheat-clover fields with clover-free corn and soybean crops.

In another project, Davis is conducting field surveys of weed-seed concentrations on soil surfaces, in cracks, and on upright plants during harvest. He plans on furnishing information gleaned from the surveys to agricultural engineers who can build what Davis calls a "weed-seed-predator combine kit."

As he envisions it, the kit would include a vacuum head and special hammers for sucking up, crushing and spitting out destroyed weed seeds as the combine moves through a field harvesting the crop.

Developed commercially, the kit could prove especially useful to organic farmers, who rank weeds as their top production problem, according to Davis.

source: http://www.ars.usda.gov/is/AR/archive/may06/weeds0506.htm

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AGRI-INFO/MAY 12, 2006


TITLE: SOWING CLOVER MATS TO SHELTER WEED SEED EATERS


ALAM BA NINYO NA ISINASAILALIM NGAYON SA MASUSING PAG-AARAL ANG ISANG PAMAMARAAN PARA MABIGYAN NG SAPAT NA PAG-AALAGA ANG MGA TINAGURIANG SEED EATERS LALU NA ANG MGA BUTU-BUTO NG DAMO O WEED SEEDS?

KABILANG SA MGA WEED SEED EATERS NA ITO AY ANG MGA IBON, MGA DAGANG BUKID, AT INSEKTO, NA SADYANG NAKATUTULONG NG MALAKI PARA MALABANAN ANG MGA PESTENG DAMO TULAD NG GIANT RAGWEED, VELVETLEAF AT GIANT FOXTAIL.

NAIS NI ADAM DAVIS NA MAGKAROON NG TINATAWAG NA NATURAL GROUND COVER NG RED CLOVER SA MGA LUPANG SAKAHAN SA LAYUNING TUMAGAL PA ANG FORAGING NA GINAGAWA NG MGA INSEKTO TULAD NG MALILIIT NA CRITTERS SA MGA MASUSTANSIYANG WEED SEEDS.

NABATID NA ANG ISANG FEMALE CRICKET AY MAAARING MAKAKAIN NG HANGGANG 50 FOXTAIL SEEDS SA BAWAT ARAW, AT MAS MARAMING NAKAKAIN DITO, AYON PA KAY DAVIS, ANG MGA DAGANG BUKID AT GROUND SQUIRRELS.

SA PAMAMAGITAN NG PAGGAMIT NG WIRE CAGES NA MERONG NAKAKABIT NA SEED KAAKIBAT ANG COMPUTER MODELLING, NAIS NI DAVIS NA MAKAPAG-COMPILE NG MGA DATA PARA MATAYA ANG IMPACT NG SEED FORAGING NG MALILIIT NA MGA HAYOP.

INIHAHANDA RIN NITO ANG WHEAT-CLOVER FIELDS SA PAMAMAGITAN NG CLOVER-FREE CORN AT SOYBEAN CROPS.

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