Volume : 4, Issue : 4, April - 2015

Effects of Drip Fertigation levels on Yield and Nutrient Uptake of Bushbean (Lablab purpurium var. typical L.)

K. Saileela, D. Raji Reddy, M. Devender Reddy, M. Uma Devi

Abstract :

<p>&lt;p&gt;&amp;lt;p&amp;gt;&amp;amp;nbsp;The experiment conducted at Water Technology Centre during rabi &amp;amp;ndash;2009&amp;amp;ndash;10 .Experiment consisted of four irrigation&amp;amp;nbsp;&amp;lt;/p&amp;gt; &amp;lt;div&amp;gt;with three fertigation levels. Results revealed drip irrigation scheduling irrigation at 100 % Epan realized higher green&amp;amp;nbsp;&amp;lt;/div&amp;gt; &amp;lt;div&amp;gt;pod yield (3556 kg ha&amp;amp;ndash;1) which was 9.5% and 22% higher than the irrigation scheduling at 80% and 60% Epan,.&amp;amp;nbsp;&amp;lt;/div&amp;gt; &amp;lt;div&amp;gt;However, the increase in the yield with 100 kg ha&amp;amp;ndash;1 N and K was to the tune of 14 and 21 % than application of 50 kg N + 50 kg K2O ha&amp;amp;ndash;1 and no&amp;amp;nbsp;&amp;lt;/div&amp;gt; &amp;lt;div&amp;gt;fertilizer application, respectively .Total nutrient uptake of N,P and K was higher with drip irrigation scheduling at 100% E pan when compared to&amp;amp;nbsp;&amp;lt;/div&amp;gt; &amp;lt;div&amp;gt;other irrigation levels. However, application of optimum dose of fertilizers 100: 100 kg ha&amp;amp;ndash;1 N and K through drip resulted in maximum uptake of&amp;amp;nbsp;&amp;lt;/div&amp;gt; &amp;lt;div&amp;gt;nutrients at all the stages at 30,60 and 90 DAS compare to other fertigation levels.&amp;amp;nbsp;&amp;lt;/div&amp;gt;&lt;/p&gt;</p>