Influence of fertilizers on sporocarp formation in Azolla pinnata.
1987
Singh P.K. | Singh D.P. | Pandey K.D.
Effect of single superphosphate, urea, ammonium sulphate, potassium sulphate and animal dung on the formation of sporocarps in Azolla pinnata under the field conditions is studied. Of the 4 strains (India, Thailand, Vietnam and Bangladesh), the Bangladesh strain produced maximum number of sporocarps (mega and micro); the Vietnam strain developed maximum number of microsporocarps, but no megasporocarps. Animal dung at 1.0 t/ha enhances sporocarp formation. Phosphorus deficiency enhances formation of megasporocarps, while superphosphate decreases their number. Ammonium sulphate or urea at 30 kg N/ha increases the number of microsporocarps, while potassium sulphate increases their number irrespective of the rate of application.
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