|Education · Religion · Mythology|
|Architecture · Engineering · Roads|
|Army · Agriculture · Cuisine|
|Kingdom of Cusco · Inca Empire|
|(Civil War · Spanish conquest)|
Incan Agriculture was the culmination of thousands of years of farming and herding in the high-elevation Andes mountains of South America, the coastal deserts, and the rainforests of the Amazon basin. These three radically different environments were all part of the Inca Empire (1438-1533 CE) and required different technologies for agriculture. Inca agriculture was also characterized by the variety of crops grown, the lack of a market system and money, and the unique mechanisms by which the Incas organized their society. Andean civilization was "pristine" -- one of five civilizations worldwide which were indigenous and not derivative from other civilizations. Most Andean crops and domestic animals were likewise pristine -- not known to other civilizations. Potatoes and quinoa were among the unique crops and camelids (llamas and alpacas), and guinea pigs were the unique domesticated animals.
The Incan civilization was predominantly agricultural. The Incas had to overcome the adversities of the Andean terrain and weather. Their adaptation of agricultural technologies that had been developed by previous cultures allowed the Incas to organize production of a diverse range of crops from the arid coast, the high, cold mountains, and the humid jungle regions, which they were then able to redistribute to villages that did not have access to the other regions. These technological achievements in agriculture would not have been possible without the workforce that was at the disposal of the Inca emperor, called the Sapa Inca, as well as the road system and extensive storage systems (qullqas) that allowed them to harvest and store food and to distribute it throughout their place of civilization.
The heartland of the Inca Empire was in the high plateaus and mountains of the Andes of Peru and Bolivia. This area is mostly above 3,000 metres (9,800 ft) in elevation and is characterized by low or seasonal precipitation, low temperatures, and thin soils. Freezing temperatures may occur in every month of the year at these altitudes.
Westward from the Andes is the Pacific Ocean, its coast often called the driest desert in the world. Agriculture is only possible with irrigation waters from the many rivers originating in the Andes and crossing the desert to the ocean. Eastward from the Andes are the rugged foothills above the Amazon Basin, an area of abundant rainfall, exuberant vegetation, and tropical temperatures.
In the Inca Empire, society was tightly organized. Land was divided in roughly equal shares for the emperor, the state religion, and the farmers themselves. Individual farmers were allocated land by the leader of the ayllu, the kinship group typical of both the Quechua and Aymara speakers of the Andes. The allocations of land to individual farmers depended upon kinship, social status, and number of family members. The farmers were expected to produce their own sustenance from the land they were allocated. Rather than being taxed on their production, farmers were required to work on the lands of the emperor and the state religion for designated periods. On the state lands, the Incas provided the inputs -- seeds, fertilizer, and tools -- to farmers. They contributed their labor. Communities were essentially self-sufficient, growing a variety of crops, pasturing camelids, and weaving cloth.
Private property existed in the form of royal estates, especially in the Sacred Valley near the Inca capital of Cuzco. Emperors customarily confiscated large quantities of land for their own use and exploitation and the estate was inherited by descendants after the emperor's death. The famous archaeological site of Machu Picchu was a royal estate. The royal estates made use of local labor, but also were staffed by a servant class called yanakunas who were ruled directly by Inca nobles and were outside the ayllu kinship system. In some areas, such as the valley of Cochabamba in Bolivia, state farms were dedicated to the production of maize, the prestige crop of the Incas but one which could not be grown at the higher elevations of the Andes.
In the oasis valleys on the desert coast, the population was more specialized, divided mostly into farmers and fishermen with trade relationships between the two.
In the Andes, altitude, scarcity of flat land, and climatic uncertainty were major factors influencing farmers. The Incas, the local leaders of the ayllus, and the individual farmers decreased their risk of poor crop years with a variety of measures. The vertical archipelago was a characteristic of Andean and Incan agriculture. Different crops could only be grown in the climates associated with certain altitudes and thus the empire diversified its agricultural production by establishing colonies and reciprocity with populations living at different, usually lower, altitudes than the Inca heartland. Also, land allocated to local authorities, the ayllus, was often not contiguous, but rather scattered at different elevations and climates to produce different products. The exchange of products among the scattered lands was carried out on a reciprocal basis rather than being commercially traded.
The Incas placed great emphasis on storing agricultural products, constructing thousands of storage silos (qullqa or qollqas) in every major center of their empire and along their extensive road system. Hillside placements were used to keep food in storage cool by utilizing the natural cool air and wind to ventilate in both room and floor installments.Drainage canals and gravel floors in qollqa help to keep foodstuffs dry. Food could be stored for up to two years in these grainaries before spoiling due to the ventilation and drainage. Dried meat (jerky), freeze-dried potatoes (chuño), maize, and quinoa were among the crops stored in large quantities for the provisioning of the Inca army and officialdom and as a hedge against poor crop years. Careful records were kept of the products and quantities stored on the knotted cords, called quipu, which the Incas used in lieu of a written language.
Individual farmers and communities had several techniques of reducing their risk. Farmers usually had many different, scattered plots of land on which they planted a variety of crops. If one or more crops failed, others might be productive. In many areas of the Andes, farmers, communities, and the Inca state constructed agricultural terraces (andenes) to increase the amount of arable land. Andenes also minimized the threat of freezes, increased exposure to sunlight, controlled erosion, and improved the absorption of water and aeration of the soil. The construction and use of andenes for crops enabled agriculture in the Andes to expand into climatically marginal areas. In some areas, raised beds (Waru Waru) was used for many of the same purposes as andenes and also to facilitate drainage.
On the desert coast extensive irrigation works were necessary for agriculture. Cotton was a major crop near the coast and coca was a major crop in the humid lowlands of the Amazon basin. The population on the coast was more specialized than the highland population with communities of farmers, fishermen, potters, weavers and others. Instead of self-sufficiency trade was extensive among the various producers. Unlike the highlands, the lowlanders utilized shells and gold as a form of money. However, in the coastal communities, the same emphasis on collective management and reciprocity prevailed as in the Andes.
The Incas transported agricultural goods by llama caravan. For example, maize grown at the state farm of Cochabamba was transported first to the regional center of Paria. Some was stored there and some was transported on to Cuzco.
Staple crops from about 1,000 meters to 3,900 meters were potatoes. Quinoa was grown from about 2,300 meters to 3,900 meters. Maize was the principal crop grown up to an elevation of 3200 meters commonly and 3,500 meters in favorable locations. Cotton was a major crop near the Pacific Ocean and grown up to elevations of about 1,500 meters. On the eastern slopes of the Andes, coca was grown up to the same elevation, and cassava (yuka) was a major crop of the Amazon lowlands. Tubers such as oca, mashua and maca were also grown.
In addition to these staple crops the people of the Inca empire cultivated a great variety of fruits, vegetables, spices and medicinal plants. Some of these other foods grown consist of tomatoes, chili peppers, avocadoes and peanuts. Many fruit trees were also utilized in crop production. Banana passionfruit can be grown from 2,000 to 3,200 meters, mountain pawpaw from 500 to 2,700 meters, Solanum quintoense or naranjilla from 500 to 2,300 meters, and Cape gooseberry from 500 to 2,800 meters.
The Incan agriculture system not only included a vast acreage of crops, but also numerous herds, some numbering in the tens of thousands, of animals taking by force from conquered enemies. These animals included mainly llamas and alpacas, the dung of which was used to fertilize the crop fields. Llamas and alpacas were usually raised high up in the Andes, at 4,000 meters (13,000ft) and above. Llamas and alpacas were very important providing “wool, meat, leather, moveable wealth,” and “transportation.” The Inca also bred and domesticated ducks and guinea pigs as a source of meat. This mixture of Animal husbandry, especially that of llamas and alpacas, was very important to the economy of the Inca, due to the lack of currency in a barter system.
Inca farmers did not have domesticated animals suitable for agricultural work so they relied on manual tools. These were well adapted to the mountainous terrain of the Andes and to the limited-area of terraces or andenes on which they often built and farmed. Main manual tools used include:
- Chaki taklla, a human-powered foot plough that consists of a wooden pole with a curved sharp point, often made of stone or metal. Across the end of this pole ran another wooden crossbar, on which the farmer could put his foot to sink it into the earth and produce a furrow. This tool is still used in the Andes for plowing, sowing, and building.
- Rawk'ana, a hoe with a thin sheet of wood of chachakuma, no higher than 40 cm. It was used to harvest tubers, to remove weeds and to sow small seeds.
- Waqtana, a Quechua term for a "clod buster"
Other technologies used to produce foodstuffs include many tools made with sharpened cobble stones, stone or clay. A mortar and pestle was used to grind up grains to be further used in cooking. Stone and clay stoves were used to cook foods over fires from either wood or llama dung. Generally made from cobble stones, farming tools like the hoe, clod breaker and foot plough were used to break up the soil and make it easier to aerate and plant crop seeds.
Farming was celebrated with rituals and songs. Teams of seven or eight men, accompanied by the same number of women, would work in line to prepare fields. The men used foot plows, chaki taklla, to break the soil. The women followed, breaking the clods and planting seeds. This work was accompanied by singing and chanting, striking the earth in unison. By one account Spanish priests found the songs so pleasant that they were incorporated into church services.
Inca farmers learned how to best use the land to maximize agriculture production. This expressed itself in the form of stone terraces to keep the important Andean soil from eroding down the mountain side. These terraces also helped to insulate the roots of plants during cold nights and hold in the moisture of the soil, keeping plants growing and producing longer in the high altitudes. Tipón was a location in the Inca Empire that was an estate for Incan nobles, it had terrace walls that were anywhere from 6 to 15 feet tall, however the knowledge of the height of the terraces throughout the rest of the empire is uncertain. The Inca often irrigated these terraces by using water melting from nearby glaciers.The Inca transported this freshly melted water to crop fields by building irrigation canals to move the water and cisterns to store the water. Another method that the Inca used to gain more farm land was to drain wetlands in order to get to the rich fertile top soil underneath the shallow water. The Inca also understood the value of crop rotation and planted different crops in the same fields annually replenishing the soil and producing better harvests.
The Incan agricultural terraces at Moray.
Inca terrace irrigation engineering.
Waru waru (or camellon).
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