Balanced phosphorus fertilization on grassland in a mixed grazing and mowing system; results after 18 years

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

In the Netherlands the P application standard including animal manure and P fertilizer has decreased to
balanced P fertilization since 2015. Moving towards balanced P fertilization might affect grassland yield
and quality, because soil processes might influence the P availability for plant uptake. In the short term,
balanced P fertilization is not expected to limit dry matter (DM) production of grass on soils with a
sufficient to high soil P. Decreases in P content and P offtake of grass are, however, expected directly after
decreasing P fertilization. In the longer term decreases of herbage yield can be foreseen. With balanced P
fertilization, annual DM yield and P content of alternately grazed and mown grassland were lower than
at a surplus of 9 or 18 kg P ha-1 yr-1 on sand and peat. However, differences between P treatments in DM
yield and P content remained constant over the whole period. On the marine clay soil, no differences in
DM yield were found between P treatments, but P content in the herbage were lower with balanced P
fertilization than with surplus P fertilization. The risk of yield reduction seems to be related to uneven
distribution of dung patches and the P buffering capacity of the soil.
Original languageEnglish
Title of host publication26th EGF General Meeting on The Multiple Roles of Grassland in the European Bioeconomy
EditorsM. Höglind, A.K. Bakken, K.A. Hovstad, E. Kallioniemi, H. Riley, H. Steinshamn, L. Ostrem
PublisherWageningen Academic Publishers
Pages248-250
Volume21
ISBN (Print)9788217016779
Publication statusPublished - Sep 2016
Event26th EGF General Meeting on “The Multiple Roles of Grassland in the European Bioeconomy” - Trondheim, Norway
Duration: 4 Sep 20168 Sep 2016
http://www.europeangrassland.org/printed-matter/proceedings.html

Conference

Conference26th EGF General Meeting on “The Multiple Roles of Grassland in the European Bioeconomy”
CountryNorway
CityTrondheim
Period4/09/168/09/16
Internet address

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    Cite this

    Curth-van Middelkoop, J. C., Ehlert, P. A. I., & Regelink, I. C. (2016). Balanced phosphorus fertilization on grassland in a mixed grazing and mowing system; results after 18 years. In M. Höglind, A. K. Bakken, K. A. Hovstad, E. Kallioniemi, H. Riley, H. Steinshamn, & L. Ostrem (Eds.), 26th EGF General Meeting on The Multiple Roles of Grassland in the European Bioeconomy (Vol. 21, pp. 248-250). Wageningen Academic Publishers. https://edepot.wur.nl/409850