Forage Rejuvenation with Phosphorus Fertilizer

Evaluate the management of dry and fluid P fertilizers, applied with N fertilizer, to restore the productivity of low producing forage stands in Saskatchewan.

IPNI-2003-CAN-SK35

09 May 2003

Methodology

    Field studies will be conducted at two locations, Indian Head and Scott, SK. Established forage stands that are low producing will be selected for treatment. The treatments will be applied to each forage stand as shown in Table 1 over a 3-year period. The sites should receive a blanket application of potassium sulphate to correct any K and S deficiencies.

    Experimental design: 4 replicate RCBD with 8 treatments (32 plots total)

    Data collection:
      • Pre-treatment soil analysis (0-6” and 6-24”)
      • Forage yield
      • Notes/observations on shift in stand diversity, weeds
      • Forage N and P content (Ca as well if possible)