A burgonyatermestés agroklimatologiai korzetei Magyar-orszagon. (Agroclimatological regions of potato-growing in Hungary)
A prerequisite for the regional planning of potato-growing is to explore the ecologic and economic circumstances of the growing areas. The agroclimatological regions of potato-growing have been outlined by relying upon one of the environmental
Impact of agricultural research. A seed potato project in Tunisia
This paper reports on the result of several years of work carried out by number of individuals from Tunisia and the International Center (CIP) : a viable seed potato program that generates substantial economic returns. Tunisia's experience offers
important lessons for scientists and policy makers who wish to establish seed potato programs in other countries. - (l'A.).
A 35,000 year vegetation and climate history from Potato Lake, Mogollon Rim, Arizona
A new record from Potato Lake, central Arizona, details vegetation and climate changes since the mid-Wisconsin for the southern Colorado Plateau. Climatic estimates presented here are consistent with other lines of evidence suggesting a cool
and/or wet mid-Wisconsin, and a cold and/or wet late-Wisconsin climate for much of the Southwest. Potato Lake was almost completely dry during the mid-Holocene, but lake levels increased to near modern conditions by ca. 3000 yr B.P.
Cultivated plants as indicators in the reconstruction of the progression of settlement in Oceania, The example of the sweet potato (Ipomoea batatas)
plants. The present article deals with the sweet potato (Ipomoea batatas). A close examination proves that the sweet potato was transferred from America to Oceania. But the plant first appears in Oceania considerably after the first period of settlement
of the sweet potato does establish the existence of contacts between Oceania and South America in the pre-European period. (Revue).
Influence of soil moisture extremes on sweet potato yield in the Papua New Guinea Highlands in Frost and drought in the Highlands of Papua New Guinea.
An experimental study that suggests that sweet potatoes undergo a major reduction in yield when an extended wet period is followed by a mild drought. Implications for understanding food suply in Highland New Guinea. - (DWG)
Agricultural calender ; Cereal ; Climatic variation ; Faeroe Islands ; Farm ; Farming system ; Hedge ; Island ; Nineteenth Century ; Potato ; Village
The article concentrates on the analysis of plant production, haymaking, grain and potato growing. A new crop (potatoes) first planted in 1823, gradually toke over the role of grain. There have been three periods with good climatic conditions
This study investigated soil loss due to crop harvesting (SLCH) for potato and sugar beet plots on farmer's fields spread over 4 regions in northeast China where harvesting is carried out by hand. The aims are to evaluate the impacts of possible
The potato in Ireland’s evolving agrarian landscape and agri-food system
The time from the introduction of the potato c. 1600 to its catastrophic decline in the mid-1800s, represented a period of Irish agriculture distinctly at odds with what came before and after, involving as it did complete dependence on a single crop
system. Despite devastating crop losses suffered in the nineteenth century and particularly associated with the Great Famine, the potato remained agriculturally significant in Ireland. From the late 1800s onwards the system underwent a transition towards
addresses that transition in the role and impacts of the potato in Ireland, from its introduction to the present day.
An estimation of the influence of the altitude and the exposition on potato production for the period 1976-1985 concerning yields and meteorological conditions was analysed. It has been stated that the decrease in production on windward slopes
is 0.6 tons/ha on each 100 m of the altitude and on leeward only 0.4 tons/ha. In the very dry year of 1976 the potato production increased with the altitude.―(D'après l'A.).
Agricultural practice ; Andes ; Crop ; Farming system ; Maize;Corn ; Mountain ; Mountain farming ; Peasantry ; Peru ; Potatoe ; Tropical zone
Four native crops (potatoes, maize, ulluco, quinoa) cultivated in the southern Peruvian sierra demonstrate different patterns of cultivar loss and cultivar maintenance. Contingent social, economic and environmental conditions in mountain agriculture
In the páramo belt of the Venezuelan Andes, a long fallow agriculture is practiced to cultivate potatoes and cereals. Total rainfall, surface runoff, soil moisture, drainage, and soil loss were measured for 2 years on 10 plots cropped with potatoes
The paper presents the method for ecophysiological research of hydrological stress and essential biophysical parameters with the use of infrared thermometer. The method was tested on the example of the potatoes. - (BJ)
andean crops planted with and without fertilizer. Best sequences for yield and biomass production were lupine (NF)-quinoa, lupine (NF)-melloco, potato (F)-quinoa (NF), melloco-quinoa, and lupine (NF)-potato. weeds were not affected by previous crop