Vol. 8, Issue 4 (2020)
Enhancing growth and yield potential of foxtail millet through potassium application in eastern dry zone of Karnataka
Author(s): Srinivasa DK, Chikkaramappa T, Sukanya TS and Murali K
Abstract: As we know that intensive cropping with high yielding varieties makes considerable demand on the soil nutrients and application of nitrogen alone is not a prescription to obtain higher yields without other nutrients supplement. The red soils of Southern Karnataka are natively rich in potassium, hence potassium is not recommended for foxtail millet in Eastern Dry Zone of Karnataka. However, long-term intensive cropping without its application resulted in low to medium status and reduced potassium supply to crop plants and consequently crop yields. By considering nutritional aspects, different levels of potassium have been applied to foxtail millet. Totally twelve treatments were tested which includes absolute control, recommended dose of fertilizers as per UAS, Bangalore package (40:40:0 kg N, P2O5 and K2O per hectare, same level of nitrogen, phosphorus and 10, 20, 30, 40 and 50 kg of potassium, 50 kg nitrogen, 45 kg phosphorus, 10, 20, 30, 40 and 50 kg of potassium. These treatments were replicated thrice using RCBD. The initial soil was low in potassium (119.84 kg ha-1), neutral in reaction (6.59), low organic carbon (0.47%), low available nitrogen (136.42 kg ha-1), phosphorus (16.62 kg ha-1) and sandy loam in texture. From the experiment it was clear that, application of 40 kg nitrogen, 40 kg phosphorus and 40 kg potassium along with 7 tonnes of FYM is performed well by recording highest plant height, number of tillers, panicle length, panicle weight, grain yield and straw yield. Application of increased levels of potassium significantly increased the yield potential of the foxtail millet.
DOI: 10.22271/chemi.2020.v8.i4a.10466
Pages: 31-36 | 678 Views 96 Downloads
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How to cite this article:
Srinivasa DK, Chikkaramappa T, Sukanya TS, Murali K. Enhancing growth and yield potential of foxtail millet through potassium application in eastern dry zone of Karnataka. Int J Chem Stud 2020;8(4):31-36. DOI: 10.22271/chemi.2020.v8.i4a.10466
