Nitrogen Immobilization in Plant Growth Substrates : Clean Chip Residual, Pine Bark, and Peatmoss

المؤلفون المشاركون

Gallagher, Thomas V.
Gilliam, Charles H.
Boyer, Cheryl R.
Sibley, Jeff L.
Torbert, H. Allen
Fain, Glenn B.

المصدر

International Journal of Agronomy

العدد

المجلد 2012، العدد 2012 (31 ديسمبر/كانون الأول 2012)، ص ص. 1-8، 8ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2012-05-16

دولة النشر

مصر

عدد الصفحات

8

التخصصات الرئيسية

الزراعة

الملخص EN

Rising costs of potting substrates have caused horticultural growers to search for alternative, lower-cost materials.

Objectives of this study were to determine the extent of nitrogen immobilization and microbial respiration in a high wood-fiber content substrate, clean chip residual.

Microbial activity and nitrogen availability of two screen sizes (0.95 cm and 0.48 cm) of clean chip residual were compared to control treatments of pine bark and peatmoss in a 60-day incubation experiment.

Four rates (0, 1, 2, or 3 mg) of supplemental nitrogen were assessed.

Peatmoss displayed little microbial respiration over the course of the study, regardless of nitrogen rate; followed by pine bark, 0.95 cm clean chip residual, and 0.48 cm clean chip residual.

Respiration increased with increasing nitrogen.

Total inorganic nitrogen (plant available nitrogen) was greatest with peatmoss; inorganic nitrogen in other treatments were similar at the 0, 1, and 2 mg supplemental nitrogen rates, while an increase occurred with the highest rate (3 mg).

Clean chip residual and pine bark were similar in available nitrogen compared to peatmoss.

This study suggests that nitrogen immobilization in substrates composed of clean chip residual is similar to pine bark and can be treated with similar fertilizer amendments during nursery production.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Boyer, Cheryl R.& Torbert, H. Allen& Gilliam, Charles H.& Fain, Glenn B.& Gallagher, Thomas V.& Sibley, Jeff L.. 2012. Nitrogen Immobilization in Plant Growth Substrates : Clean Chip Residual, Pine Bark, and Peatmoss. International Journal of Agronomy،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-513051

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Boyer, Cheryl R.…[et al.]. Nitrogen Immobilization in Plant Growth Substrates : Clean Chip Residual, Pine Bark, and Peatmoss. International Journal of Agronomy No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-513051

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Boyer, Cheryl R.& Torbert, H. Allen& Gilliam, Charles H.& Fain, Glenn B.& Gallagher, Thomas V.& Sibley, Jeff L.. Nitrogen Immobilization in Plant Growth Substrates : Clean Chip Residual, Pine Bark, and Peatmoss. International Journal of Agronomy. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-513051

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-513051