443 



EXPK R 1 .1/ KKTA L FARMS 



2 GEORGE V., A. 1912 



FIELD LOTS OF WINTER WHEAT. 



Sown on summer-fallow the latter part of August and all ripe July 15. 



TIME TO SOW WINTER WHEAT. 



In studying the conditions that might influence winter-killing., the experiment 

 in which the winter wheat is sown at different dates is interesting. Average re?ult3 

 are given for three years, except where indicated by footnote. 



The land is all prepared in exactly the same manner and the only difference in 

 treatment is that the seed is sown at different times. It was all sown with the same 

 drill and at the same rate per acre. In 1908 and 1909 it was grown on breaking, in 

 1910 on summer-fallow. The area of each plot in 1910 was one-tenth of an acre and 

 the seed was sown at the rate of one bushel per acre. 



Winter Wheat (non-irrigated) — Dates of Sowing. 



Date of Sowing. 



July- 

 August 



Date Ripe in 

 1910. 



Yield in 

 1910. 



Bush. Lbs. 



July 



I 



15 



1 



15 



September 1 



15 



October 1 



15 



November 1 \ ugust 1 . . . 



it 15 i Not sown 



December 1 I August 8 . . . , 



14. 

 14. 

 14. 

 14. 

 20. 

 26. 



winter-killed 



:::::! I 



15 



- 15 



.... 13 



30 

 20 

 20 

 10 

 10 

 10 



40 



Average Yiel 1 

 for three years 



Bush. 



1 

 12 

 27 

 31 

 23 

 20 

 16 

 10 



so- 

 lo* 



41 

 5:5 

 29 

 11 



21 

 49 



* Average for two years only. 



In studying the yields given in the tables for 1910, it will be noted that the wheat 

 sown on July 15, winter-killed entirely and that sown on August 1, fov all practical 

 purposes, did the same. It should be mentioned that these plots came tup well and 

 made a vigorous growth, forming a good mat on the ground before the winter set in. 

 That sown August 15 made more growth than the seeding made September 1. 



After watching these tests for the past three seasons, the writer has been led to 

 believe that it is not wise to sow winter wheat early enough in the season to allow 

 much growth to take place in the fall. It would seem that if the grain comes up well 

 and from three to five blades are developed on each plant, the crop has a better chaix-c 

 of going through the winter without injury than if more growth takes place in the 

 fall. I believe one would be safe in making the statement that, under our conditions, 

 in average years, the best time to sow winter wheat on well-prepared land is between 

 August 20 and September 1. 



