i EVALUATION OF DIFFERENT SOILLESS GROWING MEDIA UNDER SHADE HOUSE FOR BELL PEPPER (Capsicum annuum var. grossum)
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Date
2014-06-30
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UNIVERSITY OF AGRICULTURAL SCIENCES, RAICHUR
Abstract
Soil is a natural resource for cultivation of many crops but it has limitations like soil borne diseases, poor nutrient levels etc. to overcome these problems, the new methods are being used viz., soilless culture and cultivation of crop under protected environments (shade house). The present experiment was conducted to evaluation of different soilless growing media under shade house for bell pepper under different levels of irrigation though drip at 100% (I1) and 80% (I2) of Evapotranspiration (ET)) at research farms of University of Agricultural Sciences, Raichur. The seven different soilless growing media were selected such as cocopeat, rice husk, sawdust separately as M1, M2 and M3 treatments and these medias were mixed with vermicompost on volume basis (1:1) as M4, M5 and M6 treatments with sandy loam soil media as M7 (control) treatment in two replications. The results revealed that, the maximum monthly water requirement was found as 70.9 l and 88.7 l at 80% ET and 100% ET, respectively in December. The response of plants in respect of plant height, number of branches, root length and yield (t ha-1) was found better in sandy loam soil followed by cocopeat which are on par with each and superior to other treatments. Among the drip irrigation levels, the response of plants was better in case of 100% ET followed by 80% ET. The highest Water Use Efficiency (WUE) of 10.2 kg m-3 was found in sandy loam soil followed by cocopeat (7.3 kg m-3) whereas lowest (2.4 kg m-3) was found in sawdust. The highest benefit cost ratio (9.03) was recorded in I1M7 treatment (100 per cent ET + sandy loam soil) followed by 5.82, 2.63 and 2.57 in I2M7 (80 per cent ET + sandy loam soil), I1M1 (100 per cent ET + cocopeat) and I2M1 (80 per cent ET + cocopeat) treatments, respectively. But the benefit cost ratio was less than one observed in the remaining interaction treatments. In conclusion, out of all medias, the sandy loam soil was having better yield with irrigation level of 100% ET
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