National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A field experiments were conducted on the “Effect of site specific nutrient management in potato based sequential cropping systems on microbial population dynamics” in the premises of Agricultural Research Station (ARS), Madenur, Hassan Taluk and District during Kharif and Rabi 2017 and 2018. Experiment consisting of twelve treatments (T1: 100 % K through KCl + NP through fertilizers for targeted yield of 20 t ha-1, T2: 100 % K through K2SO4 + NP through fertilizers for targeted yield of 20 t ha-1, T3: 100 % K through Bio-K + balance NP through fertilizers for targeted yield of 20 t ha-1, T4: 50 % K through Bio-K + 50 % K through KCl + balance NP through fertilizers for targeted yield of 20 t ha-1, T5: 50 % K through Bio-K + 50 % K through K2SO4 + balance NP through fertilizers for targeted yield of 20 t ha-1, T6:100 % K through KCl + NP through fertilizers for targeted yield of 25 t ha-1, T7:100 % K through K2SO4 + NP through fertilizers for targeted yield of 25 t ha-1, T8: 100 % K through Bio-K + balance NP through fertilizers for targeted yield of 25 t ha-1, T9: 50 % K through Bio-K + 50 % K through KCl + balance NP through fertilizers for targeted yield of 25 t ha-1, T10:50 % K through Bio-K + 50 % K through K2SO4 + balance NP through fertilizers for targeted yield of 25 t ha-1, T11: Recommended dose of fertilizers alone (75:75:100 kg NPK ha-1), T12: Package of Practice recommendation, UAS, B)and replicated thrice. Among the soil biological properties, microbial activity viz., bacteria, fungi and actinomycetes count after harvest of potato was significantly higher in treatments receiving 100 % K through Bio-K + balance NP through fertilizers for targeted yield of 25 t ha-1 (10.27 x 106 Cfu g-1, 6.25 x 104 Cfu g-1 and 4.02 x 102 Cfu g-1, respectively) across all the treatments.
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