WHEN IT RAINS, IT POURS: EXTREME PRECIPITATION & NUTRIENT LOSS, PART 3 — by Jonathan Coppess and Marin Skidmore
Nutrient loss from farm fields presents one of the more perplexing natural resource challenges, and losing nitrogen lays bare and makes clear the complexities of the matter. The critical stage of the nitrogen cycle that makes the nutrient available to plants for growth and production, also makes nitrogen incredibly vulnerable to being leached and lost. Dissolved in water, nitrogen in the nitrate form (and dissolved organic nitrogen) can be carried to waterways and away from plant roots by drainage systems where it degrades water quality and contributes to hypoxic or dead zones. When it rains, it pours; farmers can do nothing about the rain and little to control the nitrogen cycle, but they can manage fertilizer applications to avoid excess nitrogen in the fields at critical times. With climate change and increasing global temperatures, some of the consequences at the local level will be the increasing frequency of extreme precipitation events. Heavy rains on farm fields will magnify the challenges for farmers, crops, and public waters unless farmers adopt practices found to reduce those losses. Public policies can and do support farmers in optimizing nitrogen and land use to meet crop needs and benefit the public, but the scale and scope of the challenge calls for more — more support and more creative, innovative policy options.
Read more: https://lnkd.in/gX_ixjJN
#precipitation #rain #nitrogen #nutrients #farmers #climatechange
Qingdao Chenkai Packing - manager
1mogreat