EFFECT OF MYCORRHIZAE ON THE GROWTH AND UPTAKE OF P, K, Zn, Cu, Fe AND Mn AT VARIOUS LEVELS ( P AND Zn BY SORGHUM
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Title |
EFFECT OF MYCORRHIZAE ON THE GROWTH AND UPTAKE OF P, K, Zn, Cu, Fe AND Mn AT VARIOUS LEVELS ( P AND Zn BY SORGHUM
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Creator |
GIRIDHAR, K. V.
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Contributor |
PRASAD RAO, A
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Subject |
MYCORRHIZAE, GROWTH, P, K, Zn, Cu, Fe Mn,SORGHUM,
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Description |
Studies on the effect of Vesicular and Arbuscular Mycorrhizae (VAM) on the growth of sorgnum (v~~i. IS 4776) at various levels of P (0 and 45 kg P2o5 ha- 1) and Zn (0, 5 and 1 O ppm) in a sandy loam soil (alfisol) , . neutral in reaction,, low in available P and Zn and medium in available N, revealed that the inoculated mycorrhizae established well in the soil whether sterilized or not (as seen from the number of spores I 100 g of soil and per cent infection of sorghum roots). Application of P was observed to inhibit the mycorrhizal growth whereas Zn application increased both the number of spores and percent infection irrespective of whether p was applied in combination or not.Mycorrhizal inoculation even in the unsterilized soil showed significant favourable effect, as indicated by the dry matter accumulation at 60 days after sowing (on sorghum growth) and on the contents and uptake of P, K, Zn, Cu, Fe and Mn by sorghum. The effects were more pronounced in sterilized soil compared to that in unsterlized soil. Increase in dry matter production with the application of P and Zn was less compared to that of mycorrhizal inoculation coupled with P X Zn application but without simultaneous P application. Mycorrhizal inoculation changed the negative P and Zn interaction to a positive one. The available P, K, Zn, Cu, Fe and Mn in the soil after crop harvest were observed to decrease due to mycorhizal inoculation showing larger depletion of nutrients due to better growth of the crop. |
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Date |
2016-08-09T10:57:16Z
2016-08-09T10:57:16Z 1989 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/71678
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Language |
en
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Relation |
D3198;
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Format |
application/pdf
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Publisher |
ACHARYA N.G. RANGA AGRICULTURAL UNIVERSITY, RAJENDRANAGAR HYDERABAD
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