http://www1.agric.gov.ab.ca/$department/newslett.nsf/all/agnw21012

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Note added at 1 hora (2013-08-18 15:05:04 GMT)
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Correct link

http://www1.agric.gov.ab.ca/$department/newslett.nsf/all/agnw21012

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Note added at 1 hora (2013-08-18 15:06:20 GMT)
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In-crop Fertilizer Applications


From the July 1, 2013 Issue of Agri-News
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An Alberta Agriculture specialist says there are a number of factors to be considered when considering an in-crop fertilizer application.
“The importance of applying fertilizer nutrients to maximize crop production is well recognized,” says Mark Cutts, crop specialist, Alberta Ag-Info Centre, Stettler. “Most producers apply all of the required fertilizer at the time of seeding in the spring. The amount of fertilizer applied at seeding is based on yield expectations, which in turn is related to factors such as soil moisture levels and expected growing season conditions. Once the growing season begins certain situations may arise, such as the occurrence of better than average growing conditions or the presence of a nutrient deficiency that may require an in-crop fertilizer application. The application of a fertilizer after crop emergence can potentially increase yield when above average growing conditions occur or reduce yield losses in the case of a nutrient deficiency.”

When in-crop fertilizer applications are being evaluated, factors such as timing of the fertilizer application, fertilizer product choice and method of application need to be considered. “Evaluating these factors will allow the nutrients to be provided to the plant in a timely matter in order to gain a yield benefit,” says Cutts. “Discussed below are two situations where an in-crop fertilizer application can be considered

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Note added at 1 hora (2013-08-18 15:07:51 GMT)
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De acordo com o texto acima, "in-crop fertilization" é a aplicação de fertilizantes após a semeadura, durante a germinação.