Mid-Atlantic
(Continued from Page Al)
Maryland, spoke on the need of
nitrogen for com and said that the
rate, source, tuning and placement
of nitrogen are important. For
maximum yields, Bandel said, no
tillage com requires more nitrogen
fertilizer than conventional tillage
com.
In applying nitrogen for no-till
planting, the injection and drib
bling methods have an advantage
over broadcasting UAN solutions,
Bandel said. In 1983, injection and
dribbling increased no-till com
yields by 37.6 percent and 21.1
percent, respectively.
To assist in determining the
economic optimum levels of
nitrogen fertilization for com, Bill
Lessley, University of Maryland,
outlined the university’s study on
nitrogen fertilization experiments.
Utilizing an average price of 34
cents per pound of nitrogen and
$2.80 per bushel of com, the
economic optimal levels of fer
tilization ranged from 121 pounds
per acre (conventional tillage) to
224 pounds per acre (no-tillage),
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Lessley said. Economically,
Lessley said, a farmer doesn’t
want to spend more money than his
returns. Added returns should
equal added costs for optimal
economic results.
Thomas H. Williams, University
of Delaware, compared tillage
systems and said farmers have
many alternatives in selecting
systems to minimize erosion.
However, no-tillage systems, he
said, rated higher in terms of
energy use, fuel and labor costs.
No-till, Williams said, uses less
than 10 horsepower-hours per acre.
Fuel use runs at one gallon per
acre with no-till, and labor use is
less than one-half hour per acre.
This breaks down to one-third the
labor, one-seventh the horsepower
hours per acre and one-sixth the
fuel needed for no-till compared
with conventional tillage prac
tices.
In speaking on no-till forage
establishment, A. Morris Decker
of the University of Maryland, said
there is nothing magical about no
till; the requirements for success
are no different than those for
conventional tillage. Farmers
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irticipants in the Mid-Atlantic No-Till Conference take time to ask questions and
gather up-date information on conservation tillage practices.
have to play by the rules, Decker Lynn Hoffman, Penn State proper firming action; and see if
said, when planting no-till. University, and Gary L. Smith, parts are locally available.
These include applying adequate University of Maryland, teamed Another important piece of no
lime and fertilizer, timely seeding, up to speak on no-till equipment, till equipment is the sprayer, Gary
legume inoculation, weed-free In selecting equipment, Hoffman Smith said. Getting the proper
seedbeds, preparing a firm suggested to look for the following amount of chemical on the fields to
seedbed with shallow placement of criteria: proper soil penetration; control pests is essential. Three
seed, and the seed-soil contact, good trash clearance; accurate prime variables which affect
Following these rules, no-till seed metering device to handle a application rate are the nozzle flow
systems can work for alfalfa and wide variety of seed sizes and rate, ground speed of the sprayer,
other forage crops, Decker said. shapes; proper seed depth control; (Turn to Page A 34)
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