Rafael Otto

• Abstract

  The use of stabilized, slow-release or controlled-release nitrogen fertilizers has been widely reported to increase the N use efficiency (NUE) of urea-based fertilizers. Despite reducing losses, yield gains are not often achieved and, in addition to the high costs, its large-scale adoption has been limited. Another concern is the accumulation of microplastics in the environment due to the…

  Developing multinutrient nitrogen fertilizers: a new concept to reduce N losses and increase crop productivity, AP.R

• Abstract

  The low nitrogen use efficiency (NUE) by sugarcane, coupled with the nitrogen (N) losses in the system, challenges the sustainability of biofuel production. Recent studies showed response of sugarcane to molybdenum (Mo), which may be associated with the improvement of NUE, since Mo is constituent of the enzymes nitrogenase and nitrate reductase. The addition of Mo in sugarcane fertilizati…

  A novel N fertilizer to improve N use efficiency by sugarcane, AP.R

• Abstract

  Sustainability of sugarcane based biofuel production is affected by nitrogen use efficiency (NUE). The challenge is to increase sugarcane yield while decreasing synthetic N fertilizer usage towards improving NUE. One option is to adopt a legume-based rotation, such as sunn hemp (Crotalaria). The cost is the main limitation, but it can be overcome by increases in yield and reduction of N a…

  Effect of Crotalaria rotation and trash removal in soil N transformations and sugarcane response to N fertilization, AP.BIOEN.R

(Only some records are available in English at this moment)

• Abstract

  Nitrogen fertilizers are essential agricultural inputs in food production. Urea is the most consumed source of nitrogen (N) in the world. The hydrolysis of urea in the soil by the action of urease produces ammonia (NH3) which is volatilized to the atmosphere. N losses by volatilization represent an economic and nutritional problem of lower N use efficiency (NUE) by plants and, environment…

  Nitrogen losses from granulated urea with boron sources and effect on maize development, BP.MS

• Abstract

  Urea is the most commonly used nitrogen fertilizer to supply nitrogen (N) to plants. However, when applied on the soil surface, urea is hydrolyzed by the urease enzyme and lost by ammonia (NH3-N) volatilization, causing environmental, economic and human health problems. The N-N-(n-butyl) thiophosphoric triamide (NBPT) urease inhibitor is widely used to reduce NH3-N losses, but gains in yi…

  Addition of micronutrientes in urea to reduce ammonia volatilization losses and increase corn (Zea mays L.) yield, BP.DR

• Abstract

  The urea is the main nitrogen fertilizer used worldwide and in Brazil. However, when urea is broadcast applied on the soil surface, ammonia (NH3) losses through volatilization reduces the N-Use Efficiency (NUE). The N-(n-butyl) thiophosphoric triamide (NBPT) is the urease inhibitor most globally used to mitigate NH3 volatilization from urea. Despite this fact, it is not unusual that the u…

  Developing an enhanced-efficiency nitrogen fertilizer, BP.PD

(Only some records are available in English at this moment)

• Abstract

  The use of ammonia (NH3) as a fertilizer is limited. Generally, ammonia is injected to a depth of between 15 and 20 cm to minimize volatilization losses. However, the advent of green ammonia as an alternative to decreasing greenhouse gas emissions from the Haber-Bosch process will likely lead to smaller-scale decentralized ammonia production, for example, on-farm production and a wider us…

  Green ammonia: the rebirth of ammonia synthesis for more sustainable nitrogen fertilizer production, BE.EP.DR

• Abstract

  Corn production continues to increase to attend the demand for food and fuel. Corn production relies on high N consumption for attaining proper yields. Most of N recommendation methods are based on the yield-based approach, whereas the lack of solid agronomic principles results in a growing concern about the reliability of this method in delivering sound N recommendations. In the United S…

  A dynamic model for precision nitrogen recommendations - a step further on digital agriculture, BE.PQ

• Abstract

  Almost all agrosystems soils are suffering a progressive loss of organic matter, leading to a decline in soil quality, release of damaging greenhouse gases, and the sub-optimal delivery of many ecosystem services. Previous attempts at promoting C storage in topsoils have had limited success and poor uptake by end-users. We hypothesize that subsoils represent an unharnessed zone for enhanc…

  Elucidating the potential of subsoils for enhanced carbon stocks in oxisol, BE.EP.DR