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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 Effect of long-term application of organic manures and inorganic fertilizers on soil properties and yield of rice and wheat under rice- wheat system / N Khatri
in Proceedings of the Second National Soil Fertility Research Workshop, 24-25 March, 2015. Soil Science Division, NARC, Khumaltar, Lalitpur, Nepal / Krishna B. Karki
Title : Effect of long-term application of organic manures and inorganic fertilizers on soil properties and yield of rice and wheat under rice- wheat system Material Type: printed text Authors: N Khatri, Author ; R.D Yadav, Author ; Yadav, N.K., Author ; Sah, S.N., Author ; K Mishra, Author Pagination: 87-91 p. Languages : English (eng) Keywords: Judicious use of organic manures, long-term soil fertility, rice and wheat, yield. Abstract: A long-term fertility experiment in rice-wheat system was initiated in 1997/98 to study the effects of application of different combinations of organic and inorganic sources of nutrients on soil properties and crop yield of rice and wheat in at National Rice Research Program, Hardinath, Dhanusha. The experiment was laid out in randomized complete block design with twelve treatments replicated three times. Recent two years statistical analysis revealed that the use of 100:30:30 kg ha-1of N:P2O5:K2O produced significantly higher grain yield of rice (3.02 t ha-1) followed by 150:45:45 N:P2O5:K2O of kg ha-1 (3.00 t ha-1) and 100:30:30 kg N:P2O5:K2O +25 kg ZnSo4 (2.99 t ha-1)……………………
Link for e-copy: http://elibrary.narc.gov.np/?r=1786 Effect of long-term application of organic manures and inorganic fertilizers on soil properties and yield of rice and wheat under rice- wheat system [printed text] / N Khatri, Author ; R.D Yadav, Author ; Yadav, N.K., Author ; Sah, S.N., Author ; K Mishra, Author . - [s.d.] . - 87-91 p.
in Proceedings of the Second National Soil Fertility Research Workshop, 24-25 March, 2015. Soil Science Division, NARC, Khumaltar, Lalitpur, Nepal / Krishna B. Karki
Languages : English (eng)
Keywords: Judicious use of organic manures, long-term soil fertility, rice and wheat, yield. Abstract: A long-term fertility experiment in rice-wheat system was initiated in 1997/98 to study the effects of application of different combinations of organic and inorganic sources of nutrients on soil properties and crop yield of rice and wheat in at National Rice Research Program, Hardinath, Dhanusha. The experiment was laid out in randomized complete block design with twelve treatments replicated three times. Recent two years statistical analysis revealed that the use of 100:30:30 kg ha-1of N:P2O5:K2O produced significantly higher grain yield of rice (3.02 t ha-1) followed by 150:45:45 N:P2O5:K2O of kg ha-1 (3.00 t ha-1) and 100:30:30 kg N:P2O5:K2O +25 kg ZnSo4 (2.99 t ha-1)……………………
Link for e-copy: http://elibrary.narc.gov.np/?r=1786 E-copies
http://nkcs.org.np/narc/dl/?r=1786URL Efficacy of fertilization levels and genotypes on the grain yield of Winter Maize (Zea mays L.) in the acidic soils of chitwan valley / B. H. Adhikary
in Proceedings of the Second National Soil Fertility Research Workshop, 24-25 March, 2015. Soil Science Division, NARC, Khumaltar, Lalitpur, Nepal / Krishna B. Karki
Title : Efficacy of fertilization levels and genotypes on the grain yield of Winter Maize (Zea mays L.) in the acidic soils of chitwan valley Material Type: printed text Authors: B. H. Adhikary, Author ; B.R. Baral, Author ; Shrestha, J., Author ; R Adhikary, Author Pagination: 190-198 p. Languages : English (eng) Keywords: Fertilizer and manures, grain yield, maize genotypes, yield attributing traits. Abstract: Maize crop is one of the heavy feeder of plant nutrients. Different varieties of maize (Zea mays L.) have different potentiality and requirements of plant nutrients. Hybrids require high dose of mineral fertilizers and manures as compared to those of open pollinated improved varieties (OPV) and the locals. In order to investigate the effects of different rates of fertilizers (nitrogen, phosphorus, potassic fertilizers) and farmyard manures on grain yield and yield attributing traits of different maize varieties, field experiments were conducted at the farm of National Maize Research Program, Rampur, Chitwan, Nepal during winter seasons of 2009/10 and 2010/011 employing randomized complete block design with three replications…………………..
Link for e-copy: http://elibrary.narc.gov.np/?r=2104 Efficacy of fertilization levels and genotypes on the grain yield of Winter Maize (Zea mays L.) in the acidic soils of chitwan valley [printed text] / B. H. Adhikary, Author ; B.R. Baral, Author ; Shrestha, J., Author ; R Adhikary, Author . - [s.d.] . - 190-198 p.
in Proceedings of the Second National Soil Fertility Research Workshop, 24-25 March, 2015. Soil Science Division, NARC, Khumaltar, Lalitpur, Nepal / Krishna B. Karki
Languages : English (eng)
Keywords: Fertilizer and manures, grain yield, maize genotypes, yield attributing traits. Abstract: Maize crop is one of the heavy feeder of plant nutrients. Different varieties of maize (Zea mays L.) have different potentiality and requirements of plant nutrients. Hybrids require high dose of mineral fertilizers and manures as compared to those of open pollinated improved varieties (OPV) and the locals. In order to investigate the effects of different rates of fertilizers (nitrogen, phosphorus, potassic fertilizers) and farmyard manures on grain yield and yield attributing traits of different maize varieties, field experiments were conducted at the farm of National Maize Research Program, Rampur, Chitwan, Nepal during winter seasons of 2009/10 and 2010/011 employing randomized complete block design with three replications…………………..
Link for e-copy: http://elibrary.narc.gov.np/?r=2104 E-copies
http://nkcs.org.np/narc/dl/?r=2104URL