Sentences with phrase «increased fertilizer application»

Not exact matches

Chemically intensive farming methods can produce short - term benefits for farmers, but they result in the degradation of soil over time, increasing the susceptibility of plants to pests and diseases and requiring ever greater applications of fertilizer in the long - run.

The research, published in the journal Proceedings of the National Academy of Sciences, brings together dozens of studies from across the globe that analyzed how nitrous oxide emissions increased based on different rates of fertilizer application.

Again, studies show no increase in yields under identical growth conditions, and the strains suffer from the same limitations as all monoculture crops do — in fact, these genetically engineered strains often call for high applications of fertilizer, water and herbicides (which, after all, is why they were engineered to be herbicide resistant).

The paper didn't fail to mention what we have reported on before, that corn farming for ethanol using management practices such as commercial fertilizer application, mechanical tillage, and intensive drainage is the most important driver of this increase in nitrogen pollution.

In the 1970s, the objective was increased yields through massive application of fertilizers.

Soil analysis in 1990 suggested that nitrogen fertilizer application since 1967 had increased the organic carbon content in the surface soil layer by about 3 t / ha in a continuous wheat cropping system.

Urease inhibitors may be effective in increasing fertilizer use efficiency especially where broadcast application is required, Grant (1998).