The Portuguese first introduced maize production in Tanzania on Pemba Island in the 16th century, and by 17th century, maize production spread to other parts of Tanzania including the Tanzanian mainland. [1] Production of maize expanded until recent years. However, Tanzania is still a leading country for maize production in East Africa. [2]
45% of Tanzanian land is used for maize cultivation in which 4.5 million of households utilize their land for maize cultivation. [3] The contribution of smallholders is 85% of the total national cultivation with the rest of contribution being from community farms and large farms (private and public) [1] Cultivation of maize is conducted in two different rainfall seasons of the year, which are:
About 47% of maize is grown during the Vuli season and 41% is grown during the Msumi season [4]
The harvesting is conducted three times per year with respect to above cultivation seasons [2]
The challenges of maize production in Tanzania includes:
The common diseases that attack maize in Tanzania are:
Rusts are plant diseases caused by pathogenic fungi of the order Pucciniales.
Subsistence agriculture occurs when farmers grow food crops to meet the needs of themselves and their families on smallholdings. Subsistence agriculturalists target farm output for survival and for mostly local requirements, with little or no surplus. Planting decisions occur principally with an eye toward what the family will need during the coming year, and only secondarily toward market prices. Tony Waters, a professor of sociology, defines "subsistence peasants" as "people who grow what they eat, build their own houses, and live without regularly making purchases in the marketplace."
A smallholding or smallholder is a small farm operating under a small-scale agriculture model. Definitions vary widely for what constitutes a smallholder or small-scale farm, including factors such as size, food production technique or technology, involvement of family in labor and economic impact. Smallholdings are usually farms supporting a single family with a mixture of cash crops and subsistence farming. As a country becomes more affluent, smallholdings may not be self-sufficient, but may be valued for the rural lifestyle. As the sustainable food and local food movements grow in affluent countries, some of these smallholdings are gaining increased economic viability. There are an estimated 500 million smallholder farms in developing countries of the world alone, supporting almost two billion people.
Stem rust, also known as cereal rust, black rust, red rust or red dust, is caused by the fungus Puccinia graminis, which causes significant disease in cereal crops. Crop species that are affected by the disease include bread wheat, durum wheat, barley and triticale. These diseases have affected cereal farming throughout history. The annual recurrence of stem rust of wheat in North Indian plains was discovered by Prof. K.C. Mehta. Since the 1950s, wheat strains bred to be resistant to stem rust have become available. Fungicides effective against stem rust are available as well.
The Matengo are an ethnic and linguistic group based in Mbinga District, Ruvuma Region in southern Tanzania. In 1957, the population estimate was 57,000, while in 2010, the Matengo population was estimated to number 284,000. Their religious affiliation is to Christianity. Their Affinity Bloc is Sub-Saharan African. Their main language is Matengo, which is one of the Bantu languages.
Puccinia asparagi is the causative agent of asparagus rust. It is an autoecious fungus, meaning that all stages of its life cycle – pycniospores, aeciospores, and teliospores – all develop upon the same host plant . Rust diseases are among the most destructive plant diseases, known to cause famine following destruction of grains, vegetables, and legumes. Asparagus rust occurs wherever the plant is grown and attacks asparagus plants during and after the cutting season. Asparagus spears are usually harvested before extensive rust symptoms appear. Symptoms are first noticeable on the growing shoots in early summer as light green, oval lesions, followed by tan blister spots and black, protruding blisters later in the season. The lesions are symptoms of Puccinia asparagi during early spring, mid-summer and later summer to fall, respectively. Severe rust infections stunt or kill young asparagus shoots, causing foliage to fall prematurely, and reduce the ability of the plant to store food reserves. The Puccinia asparagi fungus accomplishes this by rust lowering the amounts of root storage metabolites. The infected plant has reduced plant vigor and yield, often leading to death in severe cases. Most rust diseases have several stages, some of which may occur on different hosts; however, in asparagus rust all the life stages occur on asparagus. Because of this, many observers mistake the different stages of the Puccinia asparagi life cycle as the presence of different diseases. The effects of Puccinia asparagi are present worldwide wherever asparagus is being grown. Asparagus rust is a serious threat to the asparagus industry.
Puccinia melanocephala is a plant pathogen, it is the causal agent of sugarcane rust. This pathogen affects multiple species of sugarcane, including Saccharum spontaneum or wild sugarcane, Saccharum robustum, and the most commonly cultivated species Saccharum officinarum. Puccinia melanocephala can also infect other member of the family Poaceae, including some species of bamboo such as Bambusa vulgaris. The first symptoms of sugarcane rust are elongate, yellow-colored leaf spots, roughly 1mm to 4mm in length. The leaf spots gradually become bigger and turn a reddish-brown color. The uredia develop underneath the epidermis where the leaf spots are present. When the uredia become big enough, they break through the epidermis to form the characteristic rust pustules from which uredospores are borne. These pustules can coalesce, resulting in large areas of dead tissue.
The main economic products of Malawi are tobacco, tea, cotton, groundnuts, sugar and coffee. These have been among the main cash crops for the last century, but tobacco has become increasingly predominant in the last quarter-century, with a production in 2011 of 175,000 tonnes. Over the last century, tea and groundnuts have increased in relative importance while cotton has decreased. The main food crops are maize, cassava, sweet potatoes, sorghum, bananas, rice, and Irish potatoes and cattle, sheep and goats are raised. The main industries deal with agricultural processing of tobacco, tea and sugar and timber products. The industrial production growth rate is estimated at 10% (2009).
Indonesia was the fourth-largest producer of coffee in the world in 2014. Coffee cultivation in Indonesia began in the late 1600s and early 1700s, in the early Dutch colonial period, and has played an important part in the growth of the country. Indonesia is geographically and climatologically well-suited for coffee plantations, near the equator and with numerous interior mountainous regions on its main islands, creating well-suited microclimates for the growth and production of coffee.
Agriculture in South Africa contributes around 5% of formal employment, relatively low compared to other parts of Africa and the number is still decreasing, as well as providing work for casual laborers and contributing around 2.6 percent of GDP for the nation. Due to the aridity of the land, only 13.5 percent can be used for crop production, and only 3 percent is considered high potential land.
Lipumba is a village in Mbinga district in the Iringa Region of the Tanzanian Southern Highlands. It is located in the Matengo Highlands and is inhabited by the Matengo people. Lipumba is located to the northeast of the town of Mbinga and lies off the A19 road which connects it to Songea in the east.
Litembo is a village in Mbinga district in the Ruvuma Region of the Tanzanian Southern Highlands. It is located in the Matengo Highlands and is inhabited by the Matengo people. Litembo is located to the southwest of the town of Mbinga. It contains the Litembo Diocesan Hospital.
Mozambique has a variety of regional cropping patterns; agro-climatic zones range from arid and semi-arid to the sub-humid zones to the humid highlands. The most fertile areas are in the northern and central provinces, which have high agro-ecological potential and generally produce agricultural surpluses. Southern provinces have poorer soils and scarce rainfall, and are subject to recurrent droughts and floods.
The agricultural system in Sub-Saharan Africa is a predominantly small-scale farming system with more than 50% of the agricultural activity performed by women, producing about 60-70% of the food in this region. While women provide the majority of the labor in agricultural production, their access and control over productive resources is greatly constrained due to inequalities constructed by patriarchal norms.
Agriculture in Finland is characterized by the northern climate and self-sufficiency in most major agricultural products. Its economic role is declining in terms of GNP and employment in primary production, but together with the food industry and forestry with which it is linked, it forms a significant part of the Finnish economy. The number of farms has steadily declined for the last decades. Between 2000 and 2012 their number fell from almost 80,000 in 2000 to about 60,000, while the amount of arable land has slightly increased to a total of almost 2.3 million hectares. Agriculture employed 125,000 people in 2010, which is a drop of 30 percent from 2000.
The Agricultural Development and Marketing Corporation, usually known as ADMARC, was formed in Malawi in 1971 as a Government-owned corporation or parastatal to promote the Malawian economy by increasing the volume and quality of its agricultural exports, to develop new foreign markets for the consumption of Malawian agricultural produce and to support Malawi's farmers. it was the successor of a number of separate marketing boards of the colonial-era and early post-colonial times, whose functions were as much about controlling African smallholders or generating government revenues as in promoting agricultural development. At its foundation, ADMARC was given the power to finance the economic development of any public or private organisation, agricultural or not.
Climate change in Mexico is expected to have widespread impacts on Mexico: with significant decreases in precipitation and increases in temperatures. This will put pressure on the economy, people and the biodiversity of many parts of the country, which have largely arid or hot climates. Already climate change has impacted agriculture, biodiversity, farmer livelihoods, and migration, as well as "water, health, air pollution, traffic disruption from floods, [and] housing vulnerability to landslides."
Agriculture is the main part of Tanzania's economy. As of 2016, Tanzania had over 44 million hectares of arable land with only 33 percent of this amount in cultivation. Almost 70 percent of the poor population live in rural areas, and almost all of them are involved in the farming sector. Land is a vital asset in ensuring food security, and among the nine main food crops in Tanzania are maize, sorghum, millet, rice, wheat, beans, cassava, potatoes, and bananas. The agricultural industry makes a large contribution to the country's foreign exchange earnings, with more than US$1 billion in earnings from cash crop exports.
The Nyasaland famine of 1949 was a famine that occurred in the Shire Highlands in the Southern Province of Nyasaland and also in a part of the Central Province in 1949: its effects extended into the early part of 1950. The immediate cause was severe droughts in December 1948 to January 1949 and in March 1949 that destroyed much of the maize crop on which the people of the affected areas relied during its main growing season. This followed two years of erratic rainfall and poor harvests which had depleted the reserves in farmers’ granaries. The effect of crop failure was intensified by the failure of the colonial government to maintain a suitably large emergency grain reserve, delays in importing sufficient relief supplies and its requirement that most of the relief provided was paid for by its recipients. The official death toll from starvation was some 200 people, which may be an underestimate, and it excludes those dying of diseases exacerbated by malnutrition.
Puccinia sorghi, or common rust of maize, is a species of rust fungus that infects corn and species from the plant genus Oxalis.
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