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Author Tuladhar, J.K. |
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Refine your searchEffect of low and high quality organic materials on maize yield and soil properties / Tripathi, B.P.
Title : Effect of low and high quality organic materials on maize yield and soil properties Material Type: printed text Authors: Tripathi, B.P. ; Tuladhar, J.K. ; , Publisher: Pokhara : LARC Publication Date: 1997 Pagination: 9 Keywords: Maize; Wheats; Yields; Soil Ph; Cropping systems Effect of low and high quality organic materials on maize yield and soil properties [printed text] / Tripathi, B.P. ; Tuladhar, J.K. ; , . - Pokhara : LARC, 1997 . - 9.
Keywords: Maize; Wheats; Yields; Soil Ph; Cropping systems Copies (1)
Barcode Call number Media type Location Section Status NR-2731 NR-2731, Document NARC Library Documents Available 
in Proceedings of the 20th National Summer Crops Workshop on Maize Research in Nepal held at Parwanipur, Bara, April 22-24 1997 / Adhikari, K.
Title : Effect of low and high quality organic materials on maize yield and soil properties Material Type: printed text Authors: Tripathi, B.P., Editor ; Tuladhar, J.K., Author Pagination: 175-186 p. Abstract: Field experiments on maize-wheat systell!. were carried out
at Lumle· Agrucltural Centre for three years (1994/95 to
1996/97) to determine the effect of low and high quality
organic materials on maize and wheat yields and soi 1
properties. In this report, only the data of maize crop
and soil properties during maize g:towirig season are
included. Significantly high maize grain yield of 1.95
t/ha was obtained only in 1995 in the mixture of low and
high quality organic materials. The ·mean grain yield of
three years (1994 to 1996) also showed the -highest grain
yield of 2.47 t/ha in the same mixt u ~e treatments. The
mean stover yields of three years (6.63 to 6.70 t/ha)
did not differ much in low quality as well as in mixture
of low and high quality treatments. Nitrogen uptake by
maize grain and stover reduced over years in all
treatments with. the . lowe~t uptake of 21.1 kg N/ha and
49.5 kg P/ha in· contTol. Mean P uptake by maize grain
in three years was the smallest (9.7 kg/ha) in control
followed by high quality organic materials (9.8 kg/ha)
whereas mean P uptake by maize stover was the highest
(24.0 kg/ha} in low quality treatment.
. '
Soil pH significantly increa$ed from 5.8 to .5.9 after 12
weeks of maize germination in all treatments in 1995 .
Aft~r 4 weeks of maize germination, mean organic carbon
increased from 3.12 to 3.52% in all treatments except
mixture treatment (3 .45%). Organic carbon further
increased from 3. 56 to 3. 62% after 6 weeks, remained low
upto 10 weeks and again increased thereafter in all the
treatments except control. Total N decreased to 0. 26 to
0.28% in all treatments except control {0.24%) after 4
weeks of germination. Total N remained almost similar
(0.25 to 0.29%} in all treatments except low quality for
6 to 8 weeks and after . that increased slowly upto 12
weeks. I:h 1994, largest ni trate-N (85 kg/ha) wru;;
obtained in high quality FYM and 52.0 to 67.7 kg/ha in·
other treatments after 2 weeks of germination and after
that slowly decreased in all treatments. In 1995 and
1996, only traces of nitrate-N was obtained in all .
treatments. But higher. mineral-N (nitrate-N and
8JIJD10nium-N} of 38 kg/ha in .1995 and 28 kgfha in 1!196 wasrecorded after 12 weeks of germination in high quality
FYM and mixture treatments. Mean soi 1 pH of three years
remained constant (5.7) in all treatments, higher
organic carbon (3.5%) and exchangeable K (0.36 me/lOOg}
were recorded in low quality treatment, and total Nand
available P remained 0.30 to 0.33 and 330 to 338 ppm
respectively in all treatments. The results showed that
low quality organic materials are more effective as
compared to high quality FYM for maize yield and for
making N available at later stages of maize crop and
maintaining N fertility in maize-wheat system in Lum!e
condition.Link for e-copy: http://elibrary.narc.gov.np/?r=633 Effect of low and high quality organic materials on maize yield and soil properties [printed text] / Tripathi, B.P., Editor ; Tuladhar, J.K., Author . - [s.d.] . - 175-186 p.
in Proceedings of the 20th National Summer Crops Workshop on Maize Research in Nepal held at Parwanipur, Bara, April 22-24 1997 / Adhikari, K.
Abstract: Field experiments on maize-wheat systell!. were carried out
at Lumle· Agrucltural Centre for three years (1994/95 to
1996/97) to determine the effect of low and high quality
organic materials on maize and wheat yields and soi 1
properties. In this report, only the data of maize crop
and soil properties during maize g:towirig season are
included. Significantly high maize grain yield of 1.95
t/ha was obtained only in 1995 in the mixture of low and
high quality organic materials. The ·mean grain yield of
three years (1994 to 1996) also showed the -highest grain
yield of 2.47 t/ha in the same mixt u ~e treatments. The
mean stover yields of three years (6.63 to 6.70 t/ha)
did not differ much in low quality as well as in mixture
of low and high quality treatments. Nitrogen uptake by
maize grain and stover reduced over years in all
treatments with. the . lowe~t uptake of 21.1 kg N/ha and
49.5 kg P/ha in· contTol. Mean P uptake by maize grain
in three years was the smallest (9.7 kg/ha) in control
followed by high quality organic materials (9.8 kg/ha)
whereas mean P uptake by maize stover was the highest
(24.0 kg/ha} in low quality treatment.
. '
Soil pH significantly increa$ed from 5.8 to .5.9 after 12
weeks of maize germination in all treatments in 1995 .
Aft~r 4 weeks of maize germination, mean organic carbon
increased from 3.12 to 3.52% in all treatments except
mixture treatment (3 .45%). Organic carbon further
increased from 3. 56 to 3. 62% after 6 weeks, remained low
upto 10 weeks and again increased thereafter in all the
treatments except control. Total N decreased to 0. 26 to
0.28% in all treatments except control {0.24%) after 4
weeks of germination. Total N remained almost similar
(0.25 to 0.29%} in all treatments except low quality for
6 to 8 weeks and after . that increased slowly upto 12
weeks. I:h 1994, largest ni trate-N (85 kg/ha) wru;;
obtained in high quality FYM and 52.0 to 67.7 kg/ha in·
other treatments after 2 weeks of germination and after
that slowly decreased in all treatments. In 1995 and
1996, only traces of nitrate-N was obtained in all .
treatments. But higher. mineral-N (nitrate-N and
8JIJD10nium-N} of 38 kg/ha in .1995 and 28 kgfha in 1!196 wasrecorded after 12 weeks of germination in high quality
FYM and mixture treatments. Mean soi 1 pH of three years
remained constant (5.7) in all treatments, higher
organic carbon (3.5%) and exchangeable K (0.36 me/lOOg}
were recorded in low quality treatment, and total Nand
available P remained 0.30 to 0.33 and 330 to 338 ppm
respectively in all treatments. The results showed that
low quality organic materials are more effective as
compared to high quality FYM for maize yield and for
making N available at later stages of maize crop and
maintaining N fertility in maize-wheat system in Lum!e
condition.Link for e-copy: http://elibrary.narc.gov.np/?r=633 E-copies
http://nkcs.org.np/narc/dl/?r=633URL
Title : Fertility status of farmers' field soil within the extension command area of LARC Material Type: printed text Authors: Tuladhar, J.K. ; , Publisher: Pokhara : LARC Publication Date: 1995 Pagination: 22 Keywords: Soil defeciencies; Crops; Yields; fertility; Soils Fertility status of farmers' field soil within the extension command area of LARC [printed text] / Tuladhar, J.K. ; , . - Pokhara : LARC, 1995 . - 22.
Keywords: Soil defeciencies; Crops; Yields; fertility; Soils Copies (1)
Barcode Call number Media type Location Section Status NR-2529 NR-2529, Document NARC Library Documents Available
Title : First cycle maize and wheat: synchrony in maize-wheat system Material Type: printed text Authors: Tuladhar, J.K. ; , Publisher: Pokhara : LARC Publication Date: 1997 Pagination: 15 Keywords: Maize; Wheats; Soils; Experimentation; Cropping systems First cycle maize and wheat: synchrony in maize-wheat system [printed text] / Tuladhar, J.K. ; , . - Pokhara : LARC, 1997 . - 15.
Keywords: Maize; Wheats; Soils; Experimentation; Cropping systems Copies (1)
Barcode Call number Media type Location Section Status NR-2691 NR-2691, Document NARC Library Documents Available
in Proceedings of first national workshop on long-term soil fertility experiments, 11-13 August 1998 / Maskey, S.L.
Title : Long-term soil fertility experiment under maize-wheat cropping pattern in mid western hill of Nepal Material Type: printed text Authors: Tuladhar, J.K., Editor ; Chaudhary R.B, Author ; Chaudhary T.N, Author Publisher: Lalitpur : NARC Publication Date: 1998 Pagination: 158-167 .p Keywords: Soil fertility; Rice; Maize; Soils Abstract: A long-term soil fertility experiment under maize-wheat cropping pattern was conducted from 1994/95 to 1997/98 at the Agricultural Research Center, Surkhet in order to study the long-term effects of balanced and unbalanced fertilizers application for maize and wheat on crop yields and soil chemical properties. The highest yield was obtained from plots receiving recommended levels of N, P and K in both wheat and maize. Yields remained almost from the first to fourth year for organic manure treated plots. While both inorganic and organic treated plot showed the consistent increase in maize yield from year one to four. The lowest yields of maize and· wheat were observed in plots fertilized according to farmers' practice (3.7 t/ha FYM) soil chemical analysis revealed a decreasing trend in available phosphorus and organic matter content and an increasing trend in total nitrogen and available potassium over the study period Continuation of the experiment for an additional four to five years is needed to strengthen the findings from this long-term study.
Link for e-copy: http://elibrary.narc.gov.np/?r=322 Long-term soil fertility experiment under maize-wheat cropping pattern in mid western hill of Nepal [printed text] / Tuladhar, J.K., Editor ; Chaudhary R.B, Author ; Chaudhary T.N, Author . - Lalitpur : NARC, 1998 . - 158-167 .p.
in Proceedings of first national workshop on long-term soil fertility experiments, 11-13 August 1998 / Maskey, S.L.
Keywords: Soil fertility; Rice; Maize; Soils Abstract: A long-term soil fertility experiment under maize-wheat cropping pattern was conducted from 1994/95 to 1997/98 at the Agricultural Research Center, Surkhet in order to study the long-term effects of balanced and unbalanced fertilizers application for maize and wheat on crop yields and soil chemical properties. The highest yield was obtained from plots receiving recommended levels of N, P and K in both wheat and maize. Yields remained almost from the first to fourth year for organic manure treated plots. While both inorganic and organic treated plot showed the consistent increase in maize yield from year one to four. The lowest yields of maize and· wheat were observed in plots fertilized according to farmers' practice (3.7 t/ha FYM) soil chemical analysis revealed a decreasing trend in available phosphorus and organic matter content and an increasing trend in total nitrogen and available potassium over the study period Continuation of the experiment for an additional four to five years is needed to strengthen the findings from this long-term study.
Link for e-copy: http://elibrary.narc.gov.np/?r=322 E-copies
http://nkcs.org.np/narc/dl/?r=322URLResponse of Wheat to Boron Application in Sipaghat Soil / Munankarmy, R.C. in Nepal Agriculture Research Journal, Vol.3 No.1 (1999)
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