Biomass, carbon and nutrient stocks in different categories of rose (Rosa spp.) for optimizing input use. (1st October 2020)

• Record Type: Journal Article
• Authors: Sujatha, S.; Tejaswini, P.; Laxman, R. H.
• Is Part Of: Journal of plant nutrition. Volume 43:Number 16(2020)
• Page Start: 2425
• Page End: 2444
• Publication Date: 2020-10-01
• Subjects: biomass removal -- carbon stocks -- nutrient use -- open and protected systems -- rose; Plants -- Nutrition -- Periodicals; Plants -- Effect of minerals on -- Periodicals; Deficiency diseases in plants -- Periodicals; 575.76
• DOI: 10.1080/01904167.2020.1771581
• Languages: English
• ISSNs: 0190-4167

Abstract

Abstract: The present study was carried out at ICAR-IIHR, Bengaluru to assess biomass accumulation, nutrient distribution, nutrient/water/energy use, plant available soil nutrients and carbon storage in different categories of roses in open-grown and protected systems. In open-grown roses, biomass of leaves, stalk and flowers represented 31.9%, 41.1% and 26.95%, respectively. In protected condition, flower biomass accounted for 17.62% of the total compared to leaf (51.0%), and stalk biomass (31.4%). The carbon stocks in plant biomass and soil accounted for 22% and 78% of total in open-grown rose system. In protected condition, plant and soil carbon stocks accounted for 11% and 89% of the total carbon stocks. Soil carbon stocks increased from 2.214 to 3.958 kg m −2 during 4-year period in open field. In protected condition, soil carbon stock was increased from 3.315 to 5.104 kg m −2 registering an increase of 1.789 kg m −2 . In rose production system, leaves registered highest levels of macronutrients while flowers acquired more micronutrients. The water use was 45% higher in protected cultivation (344 L yr −1 m −2 ) than in open condition (232 L yr −1 m −2 ). Based on nutrient use indicators and energy use of nutrient inputs, Arka Savi and Arka Swadesh were identified as efficient nutrient use and energy use (74.6% and 37.3%) genotypes in open and protected conditions, respectively. Plant available nutrient stocks in soil were optimum to above optimum in rose system. The results imply that precision nutrient application is most important to save inputs/energy, avoid environmental pollution and to develop sustainable land use system.