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in Rice research in Nepal : Proceedings of 24th National Summer Crops Research Workshop, Khumaltar, Lalitpur, 30-31 June 2004 / Adhikari, N.P.
Title : Management of sesbania and its effect on rice-wheat system Material Type: printed text Authors: Regmi, A.P. ; T.P Kharel, Author ; L L Shrestha, Author Pagination: 298-305 p. Languages : English (eng) Keywords: Sesbania ; Residual effect rice wheat Abstract: Sesbania is an important green manuring crop grown under rice-wheat system that could
substitute nitrogenous fertilizer. Ho.wever, production of biomass largely depends upon its
management. A long-term soil fertility experiment has been conductf!d since 1988 at national
wheat research program, Bhairahawa to evaluate the effect nutrient {P and K) on Sesbania
biomass production and its effect on grain yield of rice and wheat and on soil properties as
well. Six different treatments including two Sesbania {with and with out P) were evaluated.
Missing nutrient {P and K) was applied to part of the plot to observe the effect of
superimpose on biomass production. Sesbania biomass declined linearly {J' = -893+ 13726
nl ••
X, x = 0.825 ) in minus P plots and biomass came down below 2 tonlha in later years.
Sesbania grown in residual P plots initially increased, however, it also showed declining
trend {Y = -270+16123X, K = 0.184"·). Application ofphosphorus toP missing treatment
increased 5-fold biomass of Sesbania than no P plots. Similarly superimpose of potassium
also increased {17%) biomass over no potassium plots. Biomass of Sesbania grown in N
plots {minus P and Kplots) correlated with rice yields {r = 0.73*), r-valuefurther increased
to 0. 78 when grown in residual P plots. Farmyard manure found to be superior over
Sesbania in producing rice-wheat grain yields and also improved soil chemical properties
compared to Sesbania. No residual effect of Sesbania was seen on wheat crop; rather wheat
yields were lower in Sesbania plot than the no Sesbania plot in later years of the experiment.
Sesbania had no effect on soil organic matter content. Growth and biomass of Sesbania was
largely limited by phosphorus followed by potassium. Sesbania biomass yield could be
reversed with the replenishment of P and KLink for e-copy: http://elibrary.narc.gov.np/?r=1115 Management of sesbania and its effect on rice-wheat system [printed text] / Regmi, A.P. ; T.P Kharel, Author ; L L Shrestha, Author . - [s.d.] . - 298-305 p.
in Rice research in Nepal : Proceedings of 24th National Summer Crops Research Workshop, Khumaltar, Lalitpur, 30-31 June 2004 / Adhikari, N.P.
Languages : English (eng)
Keywords: Sesbania ; Residual effect rice wheat Abstract: Sesbania is an important green manuring crop grown under rice-wheat system that could
substitute nitrogenous fertilizer. Ho.wever, production of biomass largely depends upon its
management. A long-term soil fertility experiment has been conductf!d since 1988 at national
wheat research program, Bhairahawa to evaluate the effect nutrient {P and K) on Sesbania
biomass production and its effect on grain yield of rice and wheat and on soil properties as
well. Six different treatments including two Sesbania {with and with out P) were evaluated.
Missing nutrient {P and K) was applied to part of the plot to observe the effect of
superimpose on biomass production. Sesbania biomass declined linearly {J' = -893+ 13726
nl ••
X, x = 0.825 ) in minus P plots and biomass came down below 2 tonlha in later years.
Sesbania grown in residual P plots initially increased, however, it also showed declining
trend {Y = -270+16123X, K = 0.184"·). Application ofphosphorus toP missing treatment
increased 5-fold biomass of Sesbania than no P plots. Similarly superimpose of potassium
also increased {17%) biomass over no potassium plots. Biomass of Sesbania grown in N
plots {minus P and Kplots) correlated with rice yields {r = 0.73*), r-valuefurther increased
to 0. 78 when grown in residual P plots. Farmyard manure found to be superior over
Sesbania in producing rice-wheat grain yields and also improved soil chemical properties
compared to Sesbania. No residual effect of Sesbania was seen on wheat crop; rather wheat
yields were lower in Sesbania plot than the no Sesbania plot in later years of the experiment.
Sesbania had no effect on soil organic matter content. Growth and biomass of Sesbania was
largely limited by phosphorus followed by potassium. Sesbania biomass yield could be
reversed with the replenishment of P and KLink for e-copy: http://elibrary.narc.gov.np/?r=1115 E-copies
http://nkcs.org.np/narc/dl/?r=1115URL Response of potato cultivar desiree with nitrogen and potassium nutients in potato-paddy cropping system / Shrestha, S.L.
in Rice research in Nepal : Proceedings of 24th National Summer Crops Research Workshop, Khumaltar, Lalitpur, 30-31 June 2004 / Adhikari, N.P.
Title : Response of potato cultivar desiree with nitrogen and potassium nutients in potato-paddy cropping system Material Type: printed text Authors: Shrestha, S.L. ; Khatri, B.B., Author ; G. P. Rai, Author ; D. Chaudhary, Author Pagination: 315-3221 p. Languages : English (eng) Keywords: Cropping system ; desire nutrients residual effect Abstract: Field experiments were carried out at Potato Research Farm, Hattiban, Khumaltar from
199J to 2003 under low nitrogen (N), medium organic matter and medium potassium (K)
silty-loam soil condition. The main objective of this trial was to determine the optimum dose
of these nutrients in potato-paddy cropping systems on Cv. Desiree for Kathmandu valley
conditions. In the trial, five different levels of N (0, 50, 100, 150 and 200 kg ha-1
) and four
different levels of K (0, 30, 60 and 90 kg ha-1
) were tested on potato crop. The f @ 100 kg
ha"1 and farmyard manure @ 20 tons ha"1 was applied uniformly in all the experimental
plots. Residual effects of these treatment levels were evaluated on succeeding paddy crops.
The increment in N level significantly increased tuber yield of potato whereas, some positive
effects were noticed with increased potassium levels too. In case of paddy, every increment of
N levels had increased number of tillers, plant height, as well as grain and straw yield.
Based on the results, application of N@ 150 kg and K 30 kg ha"1 is recommended for potato
crop. Residual effect of all the inorganic and organic fertilizers applied on preceding potato
crop showed that without additional applying of these nutrients also, grain and straw yield of
paddy could be obtained satisfactorily in Kathmandu valley condition.Link for e-copy: http://elibrary.narc.gov.np/?r=1117 Response of potato cultivar desiree with nitrogen and potassium nutients in potato-paddy cropping system [printed text] / Shrestha, S.L. ; Khatri, B.B., Author ; G. P. Rai, Author ; D. Chaudhary, Author . - [s.d.] . - 315-3221 p.
in Rice research in Nepal : Proceedings of 24th National Summer Crops Research Workshop, Khumaltar, Lalitpur, 30-31 June 2004 / Adhikari, N.P.
Languages : English (eng)
Keywords: Cropping system ; desire nutrients residual effect Abstract: Field experiments were carried out at Potato Research Farm, Hattiban, Khumaltar from
199J to 2003 under low nitrogen (N), medium organic matter and medium potassium (K)
silty-loam soil condition. The main objective of this trial was to determine the optimum dose
of these nutrients in potato-paddy cropping systems on Cv. Desiree for Kathmandu valley
conditions. In the trial, five different levels of N (0, 50, 100, 150 and 200 kg ha-1
) and four
different levels of K (0, 30, 60 and 90 kg ha-1
) were tested on potato crop. The f @ 100 kg
ha"1 and farmyard manure @ 20 tons ha"1 was applied uniformly in all the experimental
plots. Residual effects of these treatment levels were evaluated on succeeding paddy crops.
The increment in N level significantly increased tuber yield of potato whereas, some positive
effects were noticed with increased potassium levels too. In case of paddy, every increment of
N levels had increased number of tillers, plant height, as well as grain and straw yield.
Based on the results, application of N@ 150 kg and K 30 kg ha"1 is recommended for potato
crop. Residual effect of all the inorganic and organic fertilizers applied on preceding potato
crop showed that without additional applying of these nutrients also, grain and straw yield of
paddy could be obtained satisfactorily in Kathmandu valley condition.Link for e-copy: http://elibrary.narc.gov.np/?r=1117 E-copies
http://nkcs.org.np/narc/dl/?r=1117URL