Xiv CITRUS FRUITS AND THEIR CULTURE. 



PAGE 



nursery The best tree Prices Best time to plant 

 Planting Root trimming Planting board Watering 

 Protecting the trunks Pruning the tops The Reed 

 method of transplanting Labels and maps. 



CHAPTER XXXII. 



Cultivation of Citrus Groves 263-284 



Benefits of tillage Clean culture or no culture Effects 

 of cultivation An experiment Humus and its value 

 Depth of cultivation in Florida Depth of cultivation in 

 California and Arizona Frequency of cultivation Culti- 

 vation in relation to irrigation "Hard-pan" or "plow 

 sole" Cultivation in relation to dormancy and frosts 

 The die-back problem Implements. 



CHAPTER XXXIII. 



Cover Crops 285-296 



Advantages of cover crops Classes of cover crops Valu- 

 able cover crops Velvet bean Nitrogen collected Baron 

 von Luttichau's experience Insects and cover crops 

 Beggarweed Analysis of beggarweed Treatment of beg- 

 garweed Sand-spurs and crab-grass Cover crops in Cal- 

 ifornia. 



CHAPTER XXXIV. 



Fertilizers and Fertilizing 297-318 



Analyses of citrus fruits Amounts of fertilizer removed 

 by the crop Functions of phosphoric acid Functions 

 of potash Functions of nitrogen Functions of lime 

 Sources of plant food Sources of phosphoric acid 

 Sources of potash Sources of nitrogen Formulas 

 Differences in requirements of young and old trees 

 Formulas for young and bearing trees Amounts of fer- 

 tilizer Applying fertilizers. 



CHAPTER XXXV. 



The Irrigation of Citrus Groves 319-336 



The water factor Amount of water necessary Precipi- 

 tation in Florida Florida artesian area Pumping 

 water Applying water Irrigation in California and 

 Arizona Amount of water used in California Furrow 

 irrigation Check system in California. 



