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Effect of long term application of chemical fertilizers and organic manures on soil fertility and crops yields under rice-wheat system in the Hills / Sherchan, D.P.
in National Wintercrops Technology Workshop, September 7-10, 1995 (Bhadra 22-25, 2052): Proceedings of Wheat Research Reports, National Wheat Research Program, Siddharthanagar, Bhairahawa / Rabindra Nath Devkota
Title : Effect of long term application of chemical fertilizers and organic manures on soil fertility and crops yields under rice-wheat system in the Hills Material Type: printed text Authors: Sherchan, D.P., Author ; Gurung G.B., Author Pagination: 499-506 p. Languages : English (eng) Keywords: Fertilizers, organic manures, micronutrient, wheat, rice Abstract: In a rice-wheat system compost alone is not adequate. Balanced mineral fertilizers should be included alone with compost to improve crop productively. Organic sources of fertilizers are a key factor for maintaining soil fertility and improving crop productivity in the longer term. The application of compost has improved organic matter content, exchangeable calcium, magnesium and the cation exchange capacity of soils. No significant changes were found in PH levels between the treatments when organic and inorganic sources of fertilizers were applied. There is a strong indication that chemical fertilizers, if applied alone, increases total exchangeable acidity. DTPA extractable micronutrients: Zn, Cu, and Mn did not change significantly over the five year period irrespective of treatments, but there is an indication of the decreasing availability of Zn from heavy chemical fertilization. Available Fe is in the high range and increases the available Fe from compost treatments.
Link for e-copy: http://elibrary.narc.gov.np/?r=2803 Effect of long term application of chemical fertilizers and organic manures on soil fertility and crops yields under rice-wheat system in the Hills [printed text] / Sherchan, D.P., Author ; Gurung G.B., Author . - [s.d.] . - 499-506 p.
in National Wintercrops Technology Workshop, September 7-10, 1995 (Bhadra 22-25, 2052): Proceedings of Wheat Research Reports, National Wheat Research Program, Siddharthanagar, Bhairahawa / Rabindra Nath Devkota
Languages : English (eng)
Keywords: Fertilizers, organic manures, micronutrient, wheat, rice Abstract: In a rice-wheat system compost alone is not adequate. Balanced mineral fertilizers should be included alone with compost to improve crop productively. Organic sources of fertilizers are a key factor for maintaining soil fertility and improving crop productivity in the longer term. The application of compost has improved organic matter content, exchangeable calcium, magnesium and the cation exchange capacity of soils. No significant changes were found in PH levels between the treatments when organic and inorganic sources of fertilizers were applied. There is a strong indication that chemical fertilizers, if applied alone, increases total exchangeable acidity. DTPA extractable micronutrients: Zn, Cu, and Mn did not change significantly over the five year period irrespective of treatments, but there is an indication of the decreasing availability of Zn from heavy chemical fertilization. Available Fe is in the high range and increases the available Fe from compost treatments.
Link for e-copy: http://elibrary.narc.gov.np/?r=2803 E-copies
http://nkcs.org.np/narc/dl/?r=2803URL Wheat Production under Long-term Application of Inorganic and Organic Fertilizers in Rice-Wheat System under Rainfed Conditions / Rai, S.K. in Nepal Agriculture Research Journal, Vol. 9 (2009)
[article]
Title : Wheat Production under Long-term Application of Inorganic and Organic Fertilizers in Rice-Wheat System under Rainfed Conditions Material Type: printed text Authors: Rai, S.K., Author ; Khadka, Y.G, Author Publication Date: 2009 Article on page: 38-45 p Languages : English (eng) Keywords: Inorganic and organic fertilizers, rice-wheat cropping system,wheat crop Abstract: Under rainfed rice-wheat cropping system, experiments were conducted on
wheat variety Annapurna-2 from 1998 to 2002 to study the effect of
continuous application of inorganic and organic fertilizers in longer run on
wheat production and soil properties in alluvial soil of Khumaltar, Lalitpur at
1365 msal. Eleven different fertilizers combinations comprised of inorganic
and organic fertilizers were used. The results of the five-year experiment
indicate that the applications of optimal level of inorganic fertilizers could
supply the plant nutrients to wheat crop to produce sustainable yield. On the
other hand, organic fertilizers could help to increase the crop yield and
maintain soil fertility at the same time. Residual effect of available
phosphorus applied in previous rice crop had significant response on wheat
yield. For maintaining soil fertility, application of FYM and incorporation of
crop residue into soil are worth practicable.Link for e-copy: http://elibrary.narc.gov.np/?r=6
in Nepal Agriculture Research Journal > Vol. 9 (2009) . - 38-45 p[article] Wheat Production under Long-term Application of Inorganic and Organic Fertilizers in Rice-Wheat System under Rainfed Conditions [printed text] / Rai, S.K., Author ; Khadka, Y.G, Author . - 2009 . - 38-45 p.
Languages : English (eng)
in Nepal Agriculture Research Journal > Vol. 9 (2009) . - 38-45 p
Keywords: Inorganic and organic fertilizers, rice-wheat cropping system,wheat crop Abstract: Under rainfed rice-wheat cropping system, experiments were conducted on
wheat variety Annapurna-2 from 1998 to 2002 to study the effect of
continuous application of inorganic and organic fertilizers in longer run on
wheat production and soil properties in alluvial soil of Khumaltar, Lalitpur at
1365 msal. Eleven different fertilizers combinations comprised of inorganic
and organic fertilizers were used. The results of the five-year experiment
indicate that the applications of optimal level of inorganic fertilizers could
supply the plant nutrients to wheat crop to produce sustainable yield. On the
other hand, organic fertilizers could help to increase the crop yield and
maintain soil fertility at the same time. Residual effect of available
phosphorus applied in previous rice crop had significant response on wheat
yield. For maintaining soil fertility, application of FYM and incorporation of
crop residue into soil are worth practicable.Link for e-copy: http://elibrary.narc.gov.np/?r=6