Bittman, S.

Nuttall, W.F.

English

eCommons@USASK

The effect of deep banding, broadcasting, and seed placement of N-P fertilizers on Regent canola and Napayo wheat – 1981

University of Saskatchewan Research Archive

.... 109 .., THE EFFECT OF DEEP BANDING, BROADCASTING AND SEED PLACE}1ENT OF N P FERTILIZERS· ON REGENT CANOLA AND NAPAYO WHEAT - 1981 By W. F. Nuttall and S. Bittman Research Station Melfort, Saskatchewan The use of equipment that will place N and P fertilizers. in a band at a depth of 10 to 15 em and in row widths of 20 to 30 cmhas become a general practice. Little information on the relative efficiency of banding, broadcasting and seed plaeed N and P is available on different field crops. In Table 1, the treatment of 75 kg N broadcast and 30 kg P seed placed gave the highest·ranked yield. However, deep banding (across seed) of N and placing one half of the P (10 kg/ha) with the seed and the other half deep banded (across seed) produced a yield that was not significantly lower. One might suspect that the heavy rate of 30 kg P /ha with the seed would have reduced emergence and therefore grain yield. A general observation is that the highest yields occurred with treatments that had the highest rates of P applied.. Logical ranking of treatments is obscured by the high variation in results brought about by low soil moisture conditions in the~ spring .of 1981. With Napayo wheat (Table 2), the highest ranked yields were obtained with additional phosphate fertilizer deep banded parallel with the seed. These treatments .contained 13 kg P/ha with the seed and produced the highest yields in most cases when P was deep banded. Summary In a first year experiment comparing deep banded, broadcast and seed placed N and P fertilizer, seed placed and deep banded applications gave similar results with Regent rape. Deep.banded application of P on Napayo wheat tended to give a higher yield than broad·cast application. - 110 -Table 1. Deep Band (10 em), Broadcast, Seed Place N and P On Regent Canola - MSIC - 1981 Treatment Yield Homogeneous Subsets N (kg/ha) P kg/ha 1 2 3 4 5 6 7 6 75 BR 30 s 1200 * 23 75 BA 20 S + BA 1130 * * 21 75 BA 30 BA 1080 * * * 9 75 BR 30 BA 1067 * * * * 24 75 BA 30 S + BA 1063 * * * * 18 75 BA 30 s 1047 * * * * * 17 75 BA 20 s 1020 * * * * *· * 10 75 BR 10 s + BA 1005 * * * * * * 5 75 BR 20 s 1003 * * * * * * 22 75 BA 10 S + BA 933 * * * * * * 4 75 BR 10 s 918 * * * * * * 12 75 BR 30 S + BA 899 * * * * * * * 7 75 BR 10 BA 873 * * * * * * * 16 75 BA 10 s 851 * * * * * * * 1 75 BR 0 843 * * * * * * * 8 75 BR 20 BA 839 * * * * * * 15 11 BA 20 BA 798 * * * * * * 3 11 s . 20 s 734 * * * * * 11 75 BR 20 S + BA 727 * * * * * 19 75 BA 10 BA 708 * * * * 20 75 BA 20 BA 707 * * * * 14 0 0 698 * * * 13 75 BA 0 679 * * 2 0 0 559 * BR = Broadcast and Incorporated BA = Deep Banded to 10 em Depth, 23 em Width perpendicular to seeding direction s = Seed Placed S + BA = One Half Fertilizer Seed Placed, Other Half Deep Banded P - test = 5.4 J.l g P/g N - test = 19.5 J.l g N/g soil - 111 -Table 2. Effect Of Placement Of Phosphorus· Fertilizer On Yield Of ·. Napayo Wheat, Sown Perpendicular To Alfalfa - ~1elfort Treatment N p Seed Additional ~meat Homogeneous Placed BR, BA, SB Yield Subsets --... -.,..------·-' . kg/ha --------·-------------- kg/ha 1 2 3 3 60 BR 13.1 21.8 BA 1857 * 14 60 13.1 43.7 + 30 S + 108 K 1851 * 5 60 13.1 65.5 1792 * 10 60 13.1 87.3 BR 1677 * * 13 60 BA 13.1 43.7 BA 1596 * * * 15 60 BR 13.1 43.7 BR+ 30 S + 108 K 1510 * * * 9 60 13~ 1 65.5 1509 * * * 4 60 13.1 43.7 BA 1500 * * * 2 60 13.1 o.o 1495 * * * 8 60 13.1 43.7 BR 1489 * * * 16 60 13.1 43.7 SB 1406 * * 7 60 13.1 21.8 BR 1374 * * 6 60 13.1 87.3 BA 1358 * * 1 60 0 0.0 1301 * * 12 60 13.1 . 21.8 BR 1273 * 11 60 13.1 10.9 1248 * P - test = 6.5 p g P/g N- test = 28.3 p N/4 g BA = .Deep Ba~ded To 10 em Depth, 30 em Width Parallel With Wheat BR = Broadcast and Incorporated SB = Side Band 2.5 em Below and 2.5 em to Side of Seed Seeding W'as at row spacing of 15 em. 

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The effect of deep banding, broadcasting, and seed placement of N-P fertilizers on Regent canola and Napayo wheat – 1981

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