TABLE OF CONTENTS xvii 



Page 

 (>. PLAXKERS AND THEIR USE 160 



(a) Plankers suitable for dry areas described. 



(b) When and how they should be used. 



(c) When and where they should not be used. 



7. SEED DRILLS AND THEIR USES 163 



(a) Seed drills suitable for dry areas described. 



(b) When and how they should be used. 



(c) W r hen and where they should not be used. 



8. MAINTAINING THE DUST MULCH IN DRY AREAS 165 



(a) What is meant by the dust mulch. 



(b) The place for the dust mulch. 



(c) How to maintain the dust mulch. 



9. THE SUMMER-FALLOW IN DRY AREAS 168 



(a) What is meant by the summer-fallow. 



(b) The place for the summer-fallow. 



(c) How to manage the summer-fallow. 



10. CULTIVATING CROPS IN DRY AREAS 170 



(a) The crops that may be cultivated. 



(b) The character of the cultivation. 



(c) The extent of the cultivation. 



CHAPTER IX 

 SOWING AND PLANTING IN DRY AREAS 



1 . THE ADVANTAGE FROM DRILL SOWING 173 



(a) The seed is buried to a uniform depth. 



(b) The depth may be varied to suit the conditions. 



(c) The ground may be compressed above the seed. 



(d) There is a saving in the seed. 



2. THE DISADVANTAGES OF BROADCASTING 175 



(a) The seed cannot all be placed in moist ground. 



(b) The seed is buried too unevenly for even germi- 

 nation. 



(c) The hazard from harrowing the grain is increased. 



(d) The place for broadcasting in dry areas is limited. 



3. AMOUNT OF SEED TO Sow 177 



(a) Why light seeding is to be preferred. 



(b) About half the amounts used in humid areas will 

 suffice . 



(c) Allowance for losses in harrowing. 



4. THE TIME TO Sow AUTUMN GRAIN 179 



(a) Why early sowing is to be preferred. 



(b) Why late sowing should be avoided. 



(c) The conditions suitable for sowing. 



5. THE TIME TO Sow SPRING GRAIN 181 



(a) Why it should be sown early. 



(b) Why it should not be sown late. 



(c) The conditions suitable for sowing. 



