Horton Seed Services

2017 Wheat Seeding Rate Test Plot


Below is the yield data from our seeding rate test plots. As we have seen in the past we can achieve great yields with a lower seeding rate. In 2017, the 30 lbs/ac (399,000 seeds/ac) and the 70 lbs/ac (931,000 seeds/ac) were the top yielding seeding rates. The 70 lbs/ac may have done well due the poor planting conditions we had last fall and the good rains this spring and summer to help support the higher plant population. 2016 looks to have been similare to 2017 in that the lowest seeding rate was at the top with a higher seed rate yeilding similarly. You can look at that data below. When compared with 2015, the lower seeding rate performs well under both optimal and drought conditions. In addition, the higher seeding rates did well under conditions with plenty of moisture, but can have a significant yield drag under the less optimal condtions of 2015.


Variety: Chrome (New from Limagrain Cereal Seeds)
Planting date: 9-24-16
Practice No-Till (into Milo stalks)
Treated: Vibrance Extreme, Revise Imida St
Fertilizer: Second crop from 5 tons/acre of conditioned manure
Plus 70 lbs actual N topdress on Jan. 30th. Rain Fall from October 1st 2016 to June 1st 2017: 14.7 Inches
Drill Type: 1890 on 10 inch spacing
Seeds Per Pound: 13,300
10 Inch spacing has 52,272 feet per acre

2017 Seed Rate Data


2016 Wheat Seeding Rate Test Plot


Below is the yield data from our seeding rate test plots. As we have seen in the past we can achieve great yields with a lower seeding rate. In 2016, the 35 lbs/ac and the 65 lbs/ac were the top yielding seeding rates for both varieties in seperate parts of the field. The 65 lbs/ac may have done well due the poor planting conditions we had last fall and the good rains to help support the higher plant population. When compared with 2015, the 35 lbs/ac performs well under both optimal and drought conditions. In addition, the 65 lbs/ac did well under optimal conditions, but had a significant yield drag under the less optimal condtions of 2015.


Variety: Chrome (New from Limagrain Cereal Seeds)
Planting date: 10-17-15
Practice No-Till (into Milo stalks)
Treated: Vibrance Extreme, Revise Imida St
Fertilizer: Second crop from 5 tons/acre of conditioned manure
Plus 45 lbs actual N topdress on Jan. 26th. Rain Fall from October 1st 2015 to June 1st 2016: 13.0 Inches
Drill Type: 1890 on 10 inch spacing
Seeds Per Pound: 11,800
10 Inch spacing has 52,272 feet per acre

2016 Seed Rate Data



Variety: WB4458
Planting date: 9-26-15
Practice No-Till (into Milo stalks)
Treated: Vibrance Extreme, Revise Imida St
Fertilizer: Second crop from 5 tons/acre of conditioned manure
Plus 45 lbs actual N topdress on Jan. 26th. Rain Fall from October 1st 2015 to June 1st 2016: 13.0 Inches
Drill Type: 1890 on 10 inch spacing
Seeds Per Pound: 12,100
10 Inch spacing has 52,272 feet per acre

2016 Seed Rate Data


2015 Wheat Seeding Rate Test Plot

Variety: Pistol (Released 2015)
Planting date: 9-29-14
Practice No-Till (into Milo stalks)
Treated: Vibrance Extreme, Provoke St, Ignite 2S, sabrex LQ
Fertilizer: Second crop from 5 tons/acre of conditioned manure
Rain Fall from January 1st 2014 to Planting Date: 13.55 Inches
Rain Fall Since Planting 9-29-14: 12.75 Inches
Drill Type: 1890 on 10 inch spacing
Seeds Per Pound: 16,127
10 Inch spacing has 52,272 feet per acre
Tiller Count Taken: 12-10-14

Seed Rate Data


All of these numbers would be different given changes in planting conditions(high residue, planting date, moisture in the ground, and after, cropping rotation) The tiller counts this year are on the high side due to the warm fall we had.

Seed Rate Data



It is important to remember that these number are estimates from small portions of the field. However, it is evident that between 35 and 55 pounds there is little difference in the estimated yield. At a seeding rate higher than 55 pounds, the estimated yield begins to drop off drastically as the seeding rate increases.

Seed Rate Data
As can be seen, 35 pounds has the highest yield in the trial. The yield drops with each increase in the seeding rate.
Seed Rate Data