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Articles Tagged with ''phosphorus''

20 Ways To Shave Your Nitrogen Rates Without Nicking Yields

Stung by roller-coaster prices, no-tillers are scrutinizing one of their most expensive inputs and living with less applied nitrogen.

By Martha Mintz posted on November 1, 2010 | Posted in Nutrient Management

Economic, conservation and scientific reasons appear to be pushing no-tillers toward applying less nitrogen in their fields.

The Right Time To Apply Phosphorus And Potassium

October 20, 2010 | Posted in Nutrient Management

Source: University of Illinois

With a promising harvest under way, it’s a good time to replenish fields with phosphorus and potassium, says Fabian Fernandez, University of Illinois Extension specialist in soil fertility and plant nutrition.

Visual Symptoms Tell Story of Nutrient Deficiencies

October 19, 2010 | Posted in Nutrient Management

Source: The Mosaic Company

Throughout the growing season, crops may exhibit unusual coloring, stunted growth and leaf damage or defoliation.

Experts Fear Critical Phosphorus Shortage in Future

October 15, 2010 | Posted in Nutrient Management

Source: Alabama Cooperative Extension System

A mineral not only essential to farming but also to life on earth is running out, and scientists currently are at a loss as to what to do about it.

Corn Rootworm-Resistant Hybrids Need More Nutrients

The larger root mass in hybrids with corn-rootworm resistance function longer and remove more water and nutrients than non-corn-rootworm counterparts.

By Dan Zinkland posted on October 1, 2010 | Posted in Nutrient Management

No-tillers need to pay attention to the extra phosphorus, zinc and other nutrients that corn rootworm-resistant (CRW) hybrids use compared to biotech hybrids without the CRW trait, says Fred Below, University of Illinois plant physiologist.

Researchers Say Phosphorus Runoff Can Be Slowed by Changing Farm Practices

September 30, 2010 | Posted in Water Management

Source: PhysOrg.com, provided by Iowa State Univ.

Two recent studies by Iowa State University researchers show that phosphorus runoff into Iowa's rivers, streams and lakes can be slowed by farmers changing how they plant and fertilize their crops.

Wait To Apply Fall Nitrogen

September 23, 2010 | Posted in Nutrient Management

Farmers should wait until soil temperatures drop to the appropriate temperature before applying fall nitrogen, a University of Illinois agronomist says.

What I've Learned from No-Tilling

No-Till Puts Brothers In The Winning Zone

Using the Rawson zone-till system, precision agriculture and conservation planning earns Minnesota no-tillers recognition for their yields and environmental stewardship.

By Steve Bailey, Bill Bailey, and Ron Ross posted on September 1, 2010 | Posted in Nutrient Management, Soil Health

Looking back, it seems like we did everything we could to make sure no-till wouldn't work. But it fooled us.

Doug Caffrey Didn't Listen To ‘No-Till Won’t Work Here’

Planting early, injecting manure and hungry night crawlers pay off for veteran Iowa no-tiller.

By Dan Zinkland posted on September 1, 2010 | Posted in Seeding & Planting, Nutrient Management

Conventional wisdom says no-till won’t work in northern Iowa, an area infamous for cold, wet soils. But Thornton, Iowa, farmer Doug Caffrey, who grows corn and soybeans and raises grow-to-finish hogs, has no-tilled successfully for almost 25 years.

Gypsum And Ditches Improve Water Quality

August 9, 2010 | Posted in Nutrient Management, Water Management

Combining gypsum and a buffer system can improve water quality by trapping some agricultural pollutants in field runoff, a USDA scientist says.

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