B. P. Kalavathi , P. Santhanakrishnan , M. P. Divya

Abstract

The effect of inoculation with VA-mycorrhizal fungi (Glomus fasciculatum) with phosphorus solubilising bacteria on the growth and nutrients uptake ofNeem was examined under nursery conditions. The ability of selected VA-mycorrhizal fungus to increase the growth and uptake of phosphorus was well recognised in Neem from our previous experiments. However, the studies on combined inoculation of both VA-mycorrhizae fungus and P solubilising bacteria are limited in Neem. The present study is correlated with aspects of compatibility between P solubilizing and P mobilising organisms in the rhizosphere of Neem and thereby producing vigorous Neem seedlings for quick planting. The experimental results clearly indicated that combined jnoculation of VA-mycorrhizal fungus and phosphobacteria markedly increased the plant growth of the Neem seedlings when compared to individual inoculants or uninoculated control. The increase in the growth was attributed for the increase in nutrient uptake (N, P, K) by the Neem seedlings. The results indicated that both the organisms are having synergistic effect.

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R. Ravi , M. P. Divya , T. Mohan Raj , P. Ratha Krishnan

Abstract

In order to select the compatible shade tolerant fodder crops under Ailanthus excelsa Roxb. studies were carried out at Forest College and Research Institute, Mettupalayam (T.N.) by planting four shade tolerant fodder crops viz., cowpea, sorghum, Desmanthus and Stylosanthus under fifteen year old Ailanthus trees. The observations revealed that the growth and yield of the test crops were reduced under intercropping when compared to pure cropping. Among the test crops, Desmanthus was most affected and fodder cowpea was the least affected. So fodder cowpea is identified as a best compatible fodder suited under Ailanthus excelsa.

Keywords

Ailanthus excelsa, Compatible, Fodder, Inter Cropping and Shade

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