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How do you test the effectiveness of fertilizers?
The fertilizer solution can be tested using two different methods: sending a sample off to a laboratory or in-house testing with an electrical conductivity (E.C.) meter. Laboratory testing determines the amount of each fertilizer element in the fertilizer solution and the application rate.
What type of variable is the fertilizer?
In fertilizer rate experiments, the rate of fertilizer is referred to as a continuous variable because there are many possible rates in addition to the ones the researcher selected to use in the experiment.
What is the effect of the amount of fertilizers used to the growth rate of corn plants hypothesis?
If the amount of fertilizer applied to plants is increased, then plant growth (height) will increase. As the amount of fertilizer increases the plant growth increases.
What is the independent variable for this experiment What is the dependent variable for this experiment explain?
The independent and dependent variables are the two key variables in a science experiment. The independent variable is the one the experimenter controls. The dependent variable is the variable that changes in response to the independent variable. The two variables may be related by cause and effect.
What is fertilizer testing?
What Is Fertilizer Testing. Fertilizers are used to provide essential nutrients to the crops when the soil is not enough fertile to provide them these nutrients organically. Fertilizers contain a minimum value of 5% of one or more of the three crucial nutrients which are nitrogen (N), phosphorous (P), or potassium (K).
What does identifying variables mean?
Variables are the factors in a experiment that change or potentially change. There are two types of variables independent and dependent, these variables can also be viewed as the cause and effect of an experiment.
Why is it important to know the recommended amount of fertilizer?
The role of fertilizers in food production is usually underestimated. Fertilizers are food for plants. Fertilizers replace the nutrients that crops remove from the soil. The key is to get this balance right and to maintain a level of nutrients in soils that will support our crops without applying excess.