SOIL PROPERTIES AND NUTRIENT UPTAKE INFLUENCED BY ORGANIC MANURES AND MICROBIAL INOCULANTS IN KASTHURI TURMERIC (CURCUMA AROMATICA SALISB.).

Publication Date : 30/11/2015


Author(s) :

Bhende S. S. , P.C. Jessykutty, , G.R. Sulekha , B. K. Jayachandran , Hari Kumar V.


Volume/Issue :
Volume 1
,
Issue 11
(11 - 2015)



Abstract :

The experiment was conducted at the farm attached to the College of Agriculture, Vellayani (Thiruvananthapuram) during 2010-2011 with the main objective of studying the combined effects of organic manures and microbial inoculants on soil properties and nutrient uptake in kasthuri turmeric (Curcuma aromatica Salisb.). The treatments were based on prestandardised doses and included full dose of individual organic manures FYM (40 t ha-1), Vermicomost (25 t ha-1) and Neemcake (6 t ha-1) in combination a common with prestandardised dose of microbial inoculants {Azospirillum + AMF + Trichoderma + Pseudomonas (mi)}, half dose of above organic manures individually in combination with mi, half FYM dose + quarter dose of Vermicompost and Neemcake in combination with mi and half FYM dose + 1/8 th dose of Vermicompost and Neemcake in combination with mi. The above treatments along with control formed the nine treatments which were repeated thrice in RBD. The post experiment study revealed an improvement in the soil physical and chemical properties in all treatments with a general reduction in soil bulk density and an increase in the water holding capacity of the soil, but no appreciable change in soil pH. An increase in the electrical conductivity and in organic carbon was noticed in all treatments including the control. General increase in available N, P and K in soil were noticed in all treatments. The highest values for nitrogen was recorded in higher dose of Neemcake (6 t ha-1) in combination with mi whereas, available Phosphorus and Potassium were recorded in Vermicomost (25 t ha-1) in combination with mi. Plant analysis revealed that Nitrogen uptake was maximum observed in treatment with full dose application of vermicompost with mi (102.48 t ha-1), whereas maximum Phosphorus uptake was noticed with half FYM 40 t ha-1 + quarter dose of Vermicompost and Neemcake in combination with mi (59.76 t ha-1). Moreover, uptake of Potassium as observed in the treatment in full dose treatments of vermicompot and neemcake (260.88 t ha-1 and 262.56 t ha-1 respectively).


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