| Autor: |
YOGESH, G. S., PRAKASH, S. S., SUBBARAYAPPA, C. T., RAMAKRISHNA PARAMA, V. R., DORESWAMY, C., THIMMEGOWDA, M. N. |
| Předmět: |
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| Zdroj: |
Mysore Journal of Agricultural Sciences; Jul-Sep2022, Vol. 56 Issue 3, p298-305, 8p |
| Abstrakt: |
An experiment was conducted to study the effect of micronutrient application under different fertilizer prescription methods on yield, economics and post-harvest nutrient status of soil of Bt cotton at KVK farm, Chamarajanagar district, Southern Dry Zone of Karnataka (Zone 6). The experiment was laid out in randomised complete block design with thirteen treatments and three replications during kharif 2016 and kharif 2017. The soil was slightly alkaline in reaction (pH: 7.95), low in nitrogen, medium in phosphorus, high in potassium and low in zinc (0.32 mg kg-1) and boron (0.18 mg kg-1). Significantly higher seed cotton yield (2329 kg ha-1) was recorded in the treatment NPK as per SSNM + micronutrient fertilizers foliar application at 80 and 100 DAS, followed by NPK as per UAS-B package + MNM foliar application at 80 and 100 DAS (2215 kg ha-1) and NPK as per SSNM + MNM soil application (2012 kg ha-1) treatments as compared to control. The treatments NPK as per SSNM + micronutrient fertilizers foliar application at 80 and 100 DAS and NPK as per UAS-B + micronutrient fertilizers foliar application at 80 and 100 DAS were significantly superior in economics and showed higher net returns and B : C ratio than any other treatment (Rs.77072, 2.75 and Rs.71714, 2.65, respectively). Post harvest soil showed higher N and P2O5 contents in the treatment with UAS-B nutrient management compared to SSNM. Soil available potassium was recorded higher in SSNM treatments. Exchangeable calcium and magnesium content of soil was significantly higher in treatments that received only NPK. Available micronutrients were higher in the treatments which received soil application of micronutrients along with macronutrients applied as per SSNM and UAS-B recommendations. SSNM method with micronutrient foliar application was found to be the better practice for sustaining soil nutrient status. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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