NEW NITROGEN FERTILIZER TOOLS HELP WHEAT PRODUCERS OPTIMIZE PROFITS

US Fed News Service, Including US State News;  July 28, 2008 ;     471 words ......response resulting from additional applied nitrogen. "With the high costs of fertilizer...with each additional increment of applied nitrogen minus the cost of the added increment...indication of the economic optimum level of applied nitrogen, rather than the yield maximizing...

Economic analysis of the effects of winter cover crops on no-tillage corn...

Journal of Soil and Water Conservation;  May 1, 1998 ;     700+ words ......determined that the profit-maximizing applied nitrogen rate for corn production was reduced...no-tillage corn yield (Mg/ha); N is the applied nitrogen rate (kg/ha); RAIN is cumulative rainfall...diminishing marginal productivity of applied nitrogen; therefore b and c were ...

Stochastic dominance analysis of winter cover crop and nitrogen fertilizer...

Journal of Soil and Water Conservation;  May 1, 1998 ;     700+ words ......revenues and required 16 to 26% less applied nitrogen to maximize net revenue than the no...alternative winter cover crops and applied nitrogen rates for no-tillage corn production...split-plots and four replications per year. Applied nitrogen fertilizer rates were varied in the...

SEQUENTIAL ADOPTION OF SITE-SPECIFIC TECHNOLOGIES AND ITS IMPLICATIONS FOR...

American Journal of Agricultural Economics;  February 1, 2001 ;     700+ words ......nutrient uptake as low as 30% of the applied nitrogen, and the rest of the nitrogen has...potential to impr ove the uptake of applied nitrogen by plants. With the nitrogen content...implies that a larger portion of the applied nitrogen is being taken up by plants and a...

Crop lodging may mean a poor harvest in cash terms.

The Birmingham Post (England);  August 13, 1998 ;     217 words ......more than pounds 150 per hectare as a direct result of crop lodging. Often a clear and costly indicator of inappropriately applied nitrogen fertiliser has affected a considerable area of cropping this season. In a normal year, the effectiveness of modern PGR...

Autumn N on oilseed rape.(Livestock)

The News Letter (Belfast, Northern Ireland);  August 19, 2000 ;     364 words ...PERCEIVED by many as a last resort to boost flagging oilseed rape crops, autumn applied nitrogen has to date provided few proven yields benefits. But, as the use of strobilurins in preceding crops becomes more widespread, less...

Pollution helps weeds take over prairies. (acid rain and agricultural...

Science News;  December 7, 1996 ;     457 words ......small additions of this fertilizing pollutant can perturb the landscape. In plots of Minnesota prairie to which ecologists applied nitrogen for 12 years, native grasses showed a dramatically impaired ability to compete against weeds that had immigrated from Europe...

CORN, POTATO, OAT CHEMICAL USAGE, 2005

US Fed News Service, Including US State News;  May 18, 2006 ;     490 words ......release: Corn producers in Michigan applied nitrogen fertilizer to 97 percent of the 2...respectively. Potato producers in Michigan applied nitrogen fertilizer to 99 percent of the 44...treated. Oat producers in Michigan applied nitrogen fertilizer to 82 percent of the 90...

Many have come to realise versatility of white clover.(Farming Life)

The News Letter (Belfast, Northern Ireland);  July 27, 2002 ;     152 words ......encountered on mature swards. Dry matter yields of white clover leys are in the range of 10-13 tonnes/hectare. Without using any applied nitrogen, high clover leys can achieve the same production as conventional systems. There is a wide range of white clovers available...

SOYBEAN, WINTER WHEAT CHEMICAL USAGE, 2006, MAY 17

US Fed News Service, Including US State News;  May 17, 2007 ;     339 words ......following press release: Soybean producers in Michigan applied nitrogen fertilizer to 28 percent of the 2.0 million planted acres...acres being treated. Winter Wheat producers in Michigan applied nitrogen fertilizer to 98 percent of the 660,000 planted acres of...

Fall-Applied Nitrogen in Fertilizers Leaches away in Warm Iowa Weather.

Waterloo Courier (Waterloo, Iowa) (via Knight-Ridder/Tribune Business News);  November 11, 2003 ;     470 words ......fertilizer in the fall. They feel it saves time and money. However, during a warm fall and a warm, wet spring, half of the fall-applied nitrogen could disappear. The ammonium changes into nitrate and is either lost in the atmosphere or leaches into the water supply...

External morphology of spermatozoa and spermatozeugmata of the freshwater...

The American Midland Naturalist;  July 1, 1997 ;     700+ words ...ABSTRACT.-Truncilla truncata males release spherical aggregates...spermatozeugmata and spermatozoa of T truncata. The spermatozeugmata had an inside...spermatozeugmata to rotate. Spermatozoa of T truncata measured 3.3 Fm in length (excluding...

Shrimp make intricate seabed labyrinth. (mud shrimp Callianassa truncata...

Science News;  August 17, 1996 ;     322 words ......Germany, reports with her colleagues in the Aug. 15 Nature that the conical mounds are made by the tiny mud shrimp Callianassa truncata (inset), whose tunnels provide a chemical connection between sea and sediment. Such tunnel fields are widespread off the coasts...

Optimum ranges of leaf nitrogen for yield, fruit quality, and...

Journal of the American Pomological Society;  April 1, 2001 ;     700+ words ...Abstract The influence of five rates of ground-applied nitrogen (N) on yield, fruit quality attributes (fruit size, color, firmness, soluble solid concentrations, and starch), and leaf mineral...

Nitrogen use efficiency of crop plants: Physiological constraints upon...

Critical Reviews in Plant Sciences;  January 1, 2003 ;     700+ words ......reached approximately one hundred billion kg per annum. In many agricultural systems, a very substantial portion of this applied nitrogen fertilizer is lost from soil to groundwaters, rivers and oceans. While soil physicochemical properties play a significant...