Table l.--Soil moisture percentage in the 4- 8-inch layer at planting time on moist and 

 dry sites (wilting point, 21 percent; field capacity, 20 percent) 







Fall planting 



Spring 



plant in 



8 



Year 



Site 



First Second 



Third 



First 



Second 



Third 









- Soil moisture 



% 







1966-67 



Dry 



31 29 



35 



36 



40 



38 





Moist 



43 49 



53 



52 



52 



55 



1967-68 



Dry 



26 30 



38 



35 



40 



44 





Moist 



41 46 



55 



77 







1968-69 



Dry 



35 



41 



36 



41 



30 





Moist 



61 



61 



86 



59 



43 



Soil moisture was g 



enerally 10 to 20 percent higher in 



the spring 



than in 



the fall 



and remained 



relatively 



stable and abundant 



throughout the 



1967 and 196 



8 planting seasons 



The moisture 



content declined steadily throughout the 1969 



planting season and 



at the 



time of the 



last plantin 



g, reached the lowest spring-season 



value measured during tlie 



study period 



However, 



2.41 inches of rain 



was measured at 



Avery from 



June 21 



to 



June 29, which undoubtedly brought the soil 



moisture up to 



field capacity. 





7 



