Mexico is considered a country with a predominantly tropical climate, since most of the country is generally located at 23°27'' north latitude, as part of the Tropic of Cancer. However, within this latitude there are temperate and semi-arid zones. The problem being faced is that the definition of tropics has been based just on Latitude, frequently ignoring the Altitude factor The above mentioned problem has led to an incomplete understanding of the real surface of the ...

Agricultural Engineering 

The tomato is very sensitive to weed competition, especially in the early stages after transplanting. In the state of Yucatan Mexico, weed control is carried out with the application of several herbicides such as glyphosate in pretrans-plantation. Currently, the use of glyphosate is prohibited, in the country, since 2020. For this reason, new herbicides are to be searched to replace it. A study was carried out in 2022 in the municipality of Muna, Yucatan, Mexico with the objective ...

Agricultural Engineering 

The productivity of corn in Yucatan Mexico is continually threatened by deficiencies of several essential microelements such as Zinc (Zn). The problem is limited to the alkalinity of the soil driving to an unavailable Zn in the soil which is not used by the plants. Another problem facing is the compaction of lower layers in the red Rhodic Luvisols that have been plowed, in an intensive use, for more than 30 years. Several studies have addressed the advantages of using acids to release zin...

Agricultural Engineering 

In the Yucatán Peninsula (YP) of Mexico, bean is a staple food playing a fundamental role in the diet of the yucatecan population of the three states conforming the YP (Campeche, Quintana Roo and Yucatán). Three main species, among others, are cultivated in the región: Phaseolus lunatus L., Phaseolus vulgaris L. and Vigna unguiculata L. However, P. vulgaris is the main species consumed by Mexicans, as a source of vegetable protein, including those in the YP. The main ...

Agricultural Engineering 

The agronomic and economic behavior of a High Protein Quality maize named Chichen Itza was evaluated in a rhodic Luvisol intensively used for agriculture during 30 years. 12 treatments were tested as a result of combining three doses of chemical fertilization (N-P₂O₅-K₂O), including the Control, (30-80-00, 60-80-00, 00-00-00) with Mycorrhizal fungus, Azospirillum bacteria and both. The treatments were distributed in completely randomized block design with ...

Agricultural Engineering 

Agriculture plays a prominent role in the economy of the Democratic Republic of Congo (DRC) and has considerable production potential. Sub-Saharan African countries are known to be bedeviled with some challenges hindering the economic development. Meanwhile, some of these issues have not been exhaustively investigated in the context of the region. Thus, this study aimed at investigating the underutilization of agricultural and mineral resources in Africa, the case of D. R. Congo. Yearly data, sp...

Agricultural Science  Agricultural Engineering 

In August 1990, the governments of Canada and Mexico signed a cooperation agreement for the establishment of the Calakmul Model Forest (CMF). The basic rationale is that the forest can be managed by achieving both economic and ecological objectives. Thus, in 1994, the Regional Council for Pastoral and Agroforesty Systems of Xpujil Campeche (RAFSX) and the CMF joined efforts in order to diversify the production of lands opened to cultivation, improving conservation of forest in an ecological way ...

Agricultural Engineering 

Nitrogen (N) is one of the essential elements that most limit corn production in the state of Yucatan. The high pH leads to high contents of hydroxyls (OH-) which, when reacting with available inorganic ionic forms such as NH₄ , favor their volatilization as ammonia gas (NH₃). The red arable rhodic Luvisols of Yucatan Mexico, in addition to facing alkalinity problems, have been exposed to more than 30 years of intensive corn cul...

Agricultural Engineering 

The objective of this study was to know the weed species associated with a sisal crop (Agave fourcroydes) in the State of Yucatán, Mexico. In this sense, best weed control management strategies can be proposed to sisal producers. The weed collection was carried out in a three years old sisal crop. For the taxonomic identification images of the adult plant with flowers, fruits and seeds were taken, supported by a herbarium. The Importance Value Index (IVI) showed 23 predominate species, 78...

Agricultural Engineering 

Na Ri is the mountainous district in the Eastern of BacKan province, where agriculture sector remains the main contributor to the income of farmer. However, the income sources of farmers often depend on the instability prices of output agricultural products; which leads to near-poor farmers being vulnerable to falling back into poverty under the impact of this risk. By using survey data from 287 households, this study analyzed the factors affecting the income of farming households in Na Ri distr...

Agricultural Engineering  General Business Research