Effect of Different Organic Manures and Their Levels on Nutrient Status and Soil Microbial Activity under Rose (Rosa bourboniana Desportes) Cultivation
Pawan Kumar
Department of Horticulture, Maharana Pratap Horticultural University, Karnal, India.
Sonu Sheoran *
Department of Horticulture, CCS Haryana Agricultural University, Hisar, India.
Ankush Kamboj
Department of Soil Science, CCS Haryana Agricultural University, Hisar, India.
Divya .
Department of Horticulture, CCS Haryana Agricultural University, Hisar, India.
Gurmeet .
Department of Horticulture, CCS Haryana Agricultural University, Hisar, India.
Deepak Kumar
Department of Horticulture, CCS Haryana Agricultural University, Hisar, India.
Raveena .
Department of Horticulture, Maharana Pratap Horticultural University, Karnal, India.
*Author to whom correspondence should be addressed.
Abstract
A field experiment was conducted to study the effect of different organic manures and their levels on nutrient status and soil microbial activity in rose at Hisar during 2020-21. The treatments comprised of 3 different types of organic manures viz., farm yard manures, vermicompost and poultry manure and 4 levels control, 4 kg/m2, 5 kg/m2 and 6 kg/m2. The experiment was carried out in the split plot design with three replications. Observation on organic carbon, dehydrogenase activity and alkaline phosphatase activity, N, P and K content in rose leaves and available N, P and K content in soil at the time of harvest were recorded. Organic carbon in soil was maximum (0.93%) with the application of vermicompost while dehydrogenase and alkaline phosphatase activity were highest with the application of farmyard manure and poultry manure, respectively. Nitrogen (2.17%) and phosphorus (0.27%) content were maximum in rose leaves at harvest stage with the application of poultry manure while Potassium (1.41%) content was maximum vermicompost. Same trend was observed in the nutrient status of soil with the application of different organic manures. It is concluded that the application of poultry manures had pronounced effect on microbial activity and nutrient status in rose.
Keywords: Alkaline phosphatase activity, dehydrogenase activity, microbial activity, organic carbon, Rose