FOOD THE PLANT TAKB8 FROM THB SOIL 59 



Questions 



1. From what two sources <1<» plants draw their food? 

 2. What will become of a seed in a perfectly dry soil? 

 :$. Where do plants get their water? 4. What per cent of 

 growing plants is water? 5. What becomes of the excess of 

 Water taken l>y the plant? f. How is this water gi\m Offl 

 7. What i- thi- pr ow Oftlladl K. What are the openings in 



81 the mineral BMftttflt in plant> 

 conn- from: 1". I'n.ni what source «loes a piant draw n\<<-\ -t 

 its nitrogen? 11. W hal supplies mineral mailer lot plant"'.' 

 IS, What is chlMrophyll? IS. Why an- fertilizers 100*4 im- ■ 

 added to soils? 14. W hen arc plant foods said to he nnavail 

 nhle? 15. When are plant foods said to be available? 



PROBLEM 



If a crop of oats contains 1,000 pounds of dry matter, about 

 how many pounds of water has the crop used during the time it 

 was growing? 



