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- W1967725906 abstract "An experiment that was established in 1990 to assess depth and method of placement of nitrogen (N) and phosphorus (P) fertilizer on the yield of continuous barley (with 1 yr interruption with canola in 1995) was continued to 2001. Annually, 80 kg N ha -1 were banded either at 7.5 to 10 or 15 to 17.5 cm depth alone or in combination with 40 kg P 2 O 5 ha -1 ; the latter was either seedrow placed or banded with the N (dual banding), or split 1/2 in the seedrow and 1/2 in the band. An unfertilized control was maintained in all years. Temperature after seeding had a marked effect on the effectiveness of depth of N and P placement as well as the method of P placement. Shallow (7.5 to 10 cm depth) placement resulted in greater yields in 8 of the 11 yr that barley was grown and was never inferior to deeper placement (15 to 17.5 cm); this advantage was directly related to cooler-than-normal temperature after seeding. Cooler-than-normal temperatures also resulted in benefits from seedrow placed P; however, benefits were not as frequent as those obtained by either dual banding or splitting P between seedrow and the band. It would appear that overall benefits from banding P together with N (dual band), independently of the depth of banding, are greater than those from seedrow placing, as those benefits from the latter are less frequent and of considerably less magnitude. Key words: Band, dual band, seedrow, shallow, deep" @default.
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- W1967725906 date "2008-04-01" @default.
- W1967725906 modified "2023-09-27" @default.
- W1967725906 title "Long-term effect of placement of fertilizer nitrogen and phosphorus on barley yields" @default.
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- W1967725906 doi "https://doi.org/10.4141/cjps07138" @default.
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