Act. Diagnostica

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BIOLOGY

Integrative Activity

Natural Fertilizers or Chemical ones?

Teacher: L.B.G. Dennis Jael Flores Tolentino[pic 3]

Presented by:

Karla González Pérez #23[pic 4]

Paola Verónica Martínez González #26[pic 5]

Francisco Javier Galván Torres #15[pic 6]

Guillermo López Flores #13[pic 7]

Jorge Alberto Martínez Ruiz #27[pic 8]

Group:129 First semester

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In the following report we are going to talk about “Natural fertilizers or chemical ones?”

 To introduce this topic we have to describe some concepts that we will see in this homework, a fertilizer is any material of natural or synthetic origin, that is applied to soils or to plant tissues to supply one or more nutrients essential to the growth of plants, there are two different kinds of fertilizers:

A chemical fertilizer is defined as any inorganic material of wholly or partially synthetic origin that is added to soil to sustain plant growth.

Organic fertilizers are substances that are derived from the remains or byproducts of natural organisms which contain the essential nutrients for plant growth.

 With the pass of the time a lot of scientists have been tell us that the fertilizers are very important for the plants growing, but, who is better of this 2 kinds of fertilizers? In areas as agriculture, cultivate, etc. We observed that the plants are bigger than the others in a short period of time when we use the fertilizers, but we are not sure of the effects of each one, a lot of people say that the chemical one is better than the organic because of all their components, but it’s that true? And if it is true we ask ourselves if the chemical fertilizers will make a damage in a few years because of their elements, and if it paid off the use of it, or the organic fertilizer give us the same result and in a more ecologic and less expensive way.  

We have to know that the Chemical fertilizers do not contain any trace minerals/micro nutrients. After a few years the soil has been depleted from those elements. Overtime those elements are not contained in the fruits or in the vegetables anymore diminishing their quality; the use of chemicals have a negative impact on the soil, the water as well as the crop as the vegetables, for instance, still contain chemical traces which are then absorbed upon eating, and finally the also kill microorganisms which in turn will make the soil useless where nothing can grow. We don’t want that for us in a close future, so we want to make you see why it’s better the organic fertilizer.

In our investigation, we make an inference about our research, we think that the organic fertilizer has to work in the same way of the chemical one in the plants, no matter what a lot of people say, we stay loyal about this hypothesis that support the idea of an ecologist way to help the plants growing and in the same way that a chemical one.

To prove this information, we decide to make a controlled experiment and see the results of what fertilizer is better. It consists in cultivate two plants of the same type, in one of them we will add natural fertilizer and in another one we will use a chemical fertilizer, this will be the independent variable of the experiment. With the pass of the time, we observe the dependent variable that is when the plants were growing. We deduce that the plants grew equal but the difference was that the one that we put the natural fertilizer grew healthy. The control group in this experiment is that the plant that we use to add the chemical fertilizer didn't have the same health that the other plant that we use to add the natural fertilizer. We take notes about what was happening in our experiment so we collect the necessary data. We could observe that our hypothesis was correct and also highlighted the fact that the plant with organic fertilizer  grew healthier than the one that had chemical fertilizer, this shows that its preferable thee use of the organic one due to a better reaction with the plants. We can also mention that even though the plant with chemical fertilizer grew up fast as the one with organic fertilizer, it looked sadder and dull.[pic 11]

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