The+corn

=The corn = toc It is a grain domesticated by indigenous peoples in Mesoamerica in prehistoric times. The Aztecs and Mayans cultivated it in numerous varieties throughout central and southern Mexico, to cook or grind in a process called nixtamalization. After European contact with the Americas in the late 15th and early 16th centuries, explorers and traders carried maize back to Europe and introduced it to other countries through trade. Maize spread to the rest of the world due to its popularity and ability to grow in diverse climates



//**history**//
The process is thought by some to have started 7,500 to 12,000 years ago. Research from the 1950s to 1970s originally focused on the hypothesis that maize domestication occurred in the highlands between Oaxaca and Jalisco.

In the1500 BC, corn began to spread widely and rapidly. As it was introduced to new cultures, new uses were developed and new varieties selected to better serve in those preparations.

Corn was the staple food, or a major staple, of most pre-Columbian North American, Mesoamerican, South American, and Caribbean cultures. The Mesoamerican civilization was strengthened upon the field crop of maize; through harvesting it, its religious and spiritual importance and how it impacted their diet. Maize formed the Mesoamerican people’s identity. 

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; margin: 0cm 0cm 10pt;">**//production//**
<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">Because it is cold-intolerant, in the temperate zones corn must be planted in the spring. Its root system <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">is generally shallow, so the plant is dependent on soil moisture. Corn is most sensitive to drought at the time <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">of silk emergence, when the flowers are ready for pollination. Corn was planted by the Native Americans <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">in hills, in a complex system known to some as the Three Sisters. Corn provided support for beans. Corn in <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">America was harvested by hand <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">. <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 115%; margin: 0cm 0cm 10pt;">This method was replaced by single species hill planting where each hill 60–120 cm apart was planted with 3 or 4 <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 115%; margin: 0cm 0cm 10pt;">seeds, a method still used by home gardeners.

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 115%; margin: 0cm 0cm 10pt;">Modern technique plants corn in rows which allows for cultivation while the plant is young, although the hill <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: 115%; margin: 0cm 0cm 10pt;">technique is still used in the corn fields of some Native American reservations

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<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%;">** its deseases **
<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; margin: auto 0cm;"> Diseases <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; margin: auto 0cm;"> * Corn smut or common smut (It is a fungal disease, known in Mexico as //huitlacoche//, which is prized by some as a gourmet delicacy in itself. [|Northern leaf blight] ) <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">*** [|Southern lead blight] ** <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">***Maize dwarf mosaic virus** <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">***Maize streak virus** <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">***Stewart's Wilt** <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">*** [|Common Rust] ** <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">*** [|Goss's Wilt] ** <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">***Grey Leaf Spot** <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">*** [|Mal de Río Cuarto Virus] (MRCV)** <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">***Stalk Rot** <span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">***Ear Rot**

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">**the ilness of the corn:**

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">media type="youtube" key="k4Ia3wOSVt4" height="390" width="640"

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">**this is the actec´s corn:**

<span style="font-family: Arial,Helvetica,sans-serif; font-size: 130%; line-height: normal; margin: 0cm 0cm 10pt;">media type="youtube" key="2kAgMnwwDm4" height="398" width="501"