Soils and fertilizers . A sufficient supply of moisture makes a fertilizer more effective. Notethe greater response to fertilization in the vessels having more moisture. Vessel 78. Moisture 30 per cent,Moisture 15 per 30 per cent,Moisture 15 per 30 per 15 per cent, no fertilizer,no fertilizer,complete fertilizer,complete fertilizer,more fertilizer,more PulTB XIV. — A soil may contain too much or too little moisture. Thebest crop ia in the vessel having next to the largest quantity of water.
Soils and fertilizers . A sufficient supply of moisture makes a fertilizer more effective. Notethe greater response to fertilization in the vessels having more moisture. Vessel 78. Moisture 30 per cent,Moisture 15 per 30 per cent,Moisture 15 per 30 per 15 per cent, no fertilizer,no fertilizer,complete fertilizer,complete fertilizer,more fertilizer,more PulTB XIV. — A soil may contain too much or too little moisture. Thebest crop ia in the vessel having next to the largest quantity of water. Vessel 20. Moisture 11 per 22. Moisture 13 per 24. Moisture 20 per cent. Vessel 26. Moisture 25 per 28. Moisture 38 per 32. Moisture 45 per cent. THE USE OF FERTILIZERS 219 increasing need for greater quantities of fertilizers. This isdoubtless the case in many instances, and arises from neglectof other factors affecting soil productiveness. As we haveseen, certain fertilizers cause the soil to lose lime, whichresults in soil acidity. Organic matter is allowed to decrease,and this causes the soil to become compact and poorly aerated,and thus, one bad condition leads to another and crops be-come poorer in spite of increased applications of fertilizer. QUESTIONS 1. Why are some crops able to draw abundant nourishment fromsoils on which other crops yield poorly ? 2. How do wheat and corn differ in th
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