Figure 7
From: Methods and extractants to evaluate silicon availability for sugarcane
Relationship between sugarcane stalk yield and Si content in three soil texture classes using conventional (◆) and microwave oven (□) methods with CaCl2, deionized water, KCl, Na-acetate buffer (pH 4.0) and acetic acid extractants. Dashed line indicates the relationship of increase between the variables. Note: when comparing soil textures it is important to take in account the differences between the axes scales.
