Víctor Hugo Pérez García
Graduate student

Mineral Nutrition in Sugarcane

The mineral fertilisation in sugar cane is focused on using Nitrogen (N), Phosphorous (P) and Potassium (K) from different commercial suppliers. The literature mentions that there are different NPK recommendations for sugarcane production. This variation is because of the different types of environmental conditions, agricultural systems, sugarcane varieties and crop cycles. The evaluation of different doses of mineral fertilisation in sugar cane was carried out in 2018 under environmental conditions of the Experimental Centre of Las Huastecas-INIFAP, which is located in the south of Tamaulipas, Mexico. The aim of the research was to assess the potential of biomass production on sugarcane CP 72-2086 cultivar in different mineral fertilisation doses. Sugarcane bud chips were germinated using 2L potted soil substrate peat moss in greenhouse conditions. 23 days after sowing, sugarcane plants were transplanted to field conditions. Sugarcane plants were treated using different mineral fertilisation after 10 days of transplanting. Treatments were set as follows: absolute control neither aided-watering nor mineral fertilisation (treatment 1), furrow-watering without mineral fertilisation (treatment 2), traditional mineral fertilisation from sugarcane industry El Mante, (Ultramix 11-22-14 units of NPK; treatment 3). Whereas treatments from 4 to 12, they consisted of applying macronutrients and micronutrients at different concentrations. The 12 treatments were distributed in the field under a randomised complete block design with six replicates, which were individual plants. The dissection of plants was done at 4 and 7 months old. The whole plant biomass, root and shoot biomass, relative growth rate (RGR), yield and sucrose content were submitted to a completely randomised design. The biomass phenotypes were statically different between treatments (P<0.05). The mineral fertilisation at 175% allowed sugarcane to achieve the highest plant biomass accumulation. In conclusion, the outcomes showed that fertilising with macronutrients and micronutrients improved the yield for the sugarcane CP 72-2086 cultivar.

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