|
[article] | Title : |
Influence of Long-term Use of Organic and Inorganic Nutrients on HLB Disease of Wheat under Rice-Wheat Cropping Pattern |
| Material Type: |
printed text |
| Authors: |
Deepak Bhandari, Author ; Regmi, A.P., Author |
| Publication Date: |
2009 |
| Article on page: |
69-76 p |
| Languages : |
English (eng) |
| Keywords: |
AUDPC, FYM, Helminthosporium leaf blight, potassium |
| Abstract: |
Helminthosporium leaf blight (HLB) is one of the most destructive diseases
of wheat in terai (plain) region of Nepal. This study was conducted to
determine the effect of long-term application of various levels of nitrogen
(N), phosphorus (P), potassium (K) and organic nutrients on HLB disease of
wheat. The experiment was superimposed on long-term fertility experiment
conducted in RCB design with three replications under rice-wheat cropping
pattern at National wheat research program (NWRP), Bhairahawa, Nepal.
The treatments include various combinations of nitrogen 100 kg ha-1,
phosphorus 0 and 60 kg ha-1, and potash 0, 50 and 100 kg ha-1 with or
without Sesbania (Sesbania cannabina) and farm yard manure (FYM). Area
under disease progress curve (AUDPC) was calculated using the disease
scores and yield parameters were recorded. Among the inorganic nutrients,
long-term deficiency of potash in the field markedly enhances the HLB
disease. Application of phosphorus in various doses increased the HLB
severity in absence of potash. Regular application of at least potash 50 kg ha-
1 in wheat noticeably reduced the HLB disease. Regular use of FYM 10 ton
ha-1 for long-term considerably reduced the HLB disease but long-term use
of Sesbania as green manure did not show any impact on HLB severity.
Inclusion of potash in nutrients considerably increased the yield and
thousand grain weight (TGW) of wheat. In long term, balanced use of
inorganic and organic nutrients with special attention on regular inclusion of
potash and FYM in the nutrient combinations is vital in suppression of HLB
disease under rice-wheat cropping pattern. |
| Link for e-copy: |
http://elibrary.narc.gov.np/?r=10 |
in Nepal Agriculture Research Journal > Vol. 9 (2009) . - 69-76 p
[article] Influence of Long-term Use of Organic and Inorganic Nutrients on HLB Disease of Wheat under Rice-Wheat Cropping Pattern [printed text] / Deepak Bhandari, Author ; Regmi, A.P., Author . - 2009 . - 69-76 p. Languages : English ( eng) in Nepal Agriculture Research Journal > Vol. 9 (2009) . - 69-76 p | Keywords: |
AUDPC, FYM, Helminthosporium leaf blight, potassium |
| Abstract: |
Helminthosporium leaf blight (HLB) is one of the most destructive diseases
of wheat in terai (plain) region of Nepal. This study was conducted to
determine the effect of long-term application of various levels of nitrogen
(N), phosphorus (P), potassium (K) and organic nutrients on HLB disease of
wheat. The experiment was superimposed on long-term fertility experiment
conducted in RCB design with three replications under rice-wheat cropping
pattern at National wheat research program (NWRP), Bhairahawa, Nepal.
The treatments include various combinations of nitrogen 100 kg ha-1,
phosphorus 0 and 60 kg ha-1, and potash 0, 50 and 100 kg ha-1 with or
without Sesbania (Sesbania cannabina) and farm yard manure (FYM). Area
under disease progress curve (AUDPC) was calculated using the disease
scores and yield parameters were recorded. Among the inorganic nutrients,
long-term deficiency of potash in the field markedly enhances the HLB
disease. Application of phosphorus in various doses increased the HLB
severity in absence of potash. Regular application of at least potash 50 kg ha-
1 in wheat noticeably reduced the HLB disease. Regular use of FYM 10 ton
ha-1 for long-term considerably reduced the HLB disease but long-term use
of Sesbania as green manure did not show any impact on HLB severity.
Inclusion of potash in nutrients considerably increased the yield and
thousand grain weight (TGW) of wheat. In long term, balanced use of
inorganic and organic nutrients with special attention on regular inclusion of
potash and FYM in the nutrient combinations is vital in suppression of HLB
disease under rice-wheat cropping pattern. |
| Link for e-copy: |
http://elibrary.narc.gov.np/?r=10 |
|
Influence of Long-term Use of Organic and Inorganic Nutrients on HLB Disease of Wheat under Rice-Wheat Cropping Pattern in Nepal Agriculture Research Journal, Vol. 9 (2009)
