The land resource for agriculture

Approximately 11 % of the world’s land area is used, and in addition some 12% (at present grassland and forest) has potential for, crop production. The actual production could be greatly increased by intensification and improved farm management. Unfortunately, much land is misused or withdrawn from agriculture. Recent studies show that on a global scale all land reserves will be lost within one century, and reserves of highly productive land will be lost in twenty-five years. There are important regional differences in the productive capacity of land and in socio-economic and political conditions that determine land use and food production. All stages of methods of agricultural production which have been developed during the last ten thousand years still exist. A study of the various systems of production and types of land use reveals some interesting aspects for the future and will be discussed in the lecture.

2021 ◽  
Author(s):  
Lynette Morgan

Abstract Crop production in many regions has been reliant on irrigation for almost as long as man has been cultivating plant life. For 6000 years, irrigation has ranked among the most powerful tools of human advancement (Postel, 1999), and by the start of the 21st century no less than 75% of the world's fresh water was in use for agricultural production (Levy and Coleman, 2014). In 2012, twenty percent of total cultivated land was under irrigation, contributing forty percent of the total food production worldwide, this represented 275 million hectares under actual irrigation with a total of 324 million hectares equipped for irrigation (FAO, 2016). Irrigation, which can be defined as 'the artificial application of water to land, soil or other growing medium for the purposes of crop growth', has become a global issue in more recent times as the increasing demand for fresh water has seen problems develop with water scarcity, quality issues and conflict over usage.


1978 ◽  
Vol 7 (2) ◽  
pp. 67-74
Author(s):  
Douglas E. Morris ◽  
Albert E. Luloff

Joad said, “You're bound to get idears if you go thinkin’ about stuff.”John Steinbeck, The Grapes of WrathPast agricultural programs encouraged the withdrawal of cropland from agricultural production. With the removal of crop acreage restrictions and despite the favorable relationships of the 1972–1974 period, all of this land has not been immediately activated into crop production. Some programs encouraged shifts of cropland to pasture, timber production, or to soil improvement uses. Land converted to these alternatives is potentially available for crop production, but whether or at what rate it will be reemployed remains problematic.


Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2696
Author(s):  
Mesfin M. Mekonnen ◽  
Winnie Gerbens-Leenes

Agricultural production is the main consumer of water. Future population growth, income growth, and dietary shifts are expected to increase demand for water. The paper presents a brief review of the water footprint of crop production and the sustainability of the blue water footprint. The estimated global consumptive (green plus blue) water footprint ranges from 5938 to 8508 km3/year. The water footprint is projected to increase by as much as 22% due to climate change and land use change by 2090. Approximately 57% of the global blue water footprint is shown to violate the environmental flow requirements. This calls for action to improve the sustainability of water and protect ecosystems that depend on it. Some of the measures include increasing water productivity, setting benchmarks, setting caps on the water footprint per river basin, shifting the diets to food items with low water requirements, and reducing food waste.


2020 ◽  
Vol 182 (3-4) ◽  
pp. 90-105
Author(s):  
Oleksandr Kuzmenko ◽  
◽  
Iryna Semenchuk ◽  
Viktor Pohromskyi ◽  
◽  
...  

The leading regions of Ukraine’s agricultural production are the most eye-catching for attracting foreign investments, introducing innovative technologies and entering international markets. Research of the main factors, characteristics and experience which determine the agricultural guidance of the regions provide information to the potential investors for the accomplishment of investment and innovation programs, identify problems and ways to solve them for further expansion of the agricultural sector. The study applied the method of estimating the level of agricultural production in terms of gross agricultural output per one person of the rural population (GAO per one person of the rural population). The evaluation of the leadership of agricultural production in the regional aspect was carried out on the basis of the Ukraine’s regional allotment into three groups, formed by the ranges of the ratio of GAO per one person of the rural population to its average value in Ukraine. A group of regional leaders from 15 oblasts (regions) that form the leading agricultural district (Vinnytsia, Dnipropetrovsk, Donetsk, Zhytomyr, Zaporizhzhia, Kyiv, Kirovohrad, Mykolaiv, Poltava, Sumy, Kharkiv, Kherson, Khmelnytsky, Cherkasy, Chernihiv) has been established. In these oblasts, agricultural products worth UAH 525298.1 million are produced. (77.1% of the volume in Ukraine), is sold for export for USD 8181.0 million (40.3% of Ukraine’s agricultural exports). It is determined that in the leading district the area of agricultural lands is 27.2 million hectares, 82.7% of which are arable lands of fertile chernozem. The structure of production has changed towards crop production, the most profitable and export-oriented one. The rural population has shrunk to 7.1 million, reducing its labor potential. More than 77% of agricultural machinery is concentrated in the district, but this is on the background of its overall reduction by 3.5 times or even more (in 2019 compared with 1990). The main problems in land use are: high degree of plowing of agricultural lands (the highest in five oblasts reaches 81.5-88.1%), violation of the system of scientifically justified crop rotations, insignificant application of organic fertilizers (0.1-1.3 t/ha), which intensifies soil degradation processes. Investments in the leading agricultural district of 15 oblasts amount to UAH 45.3 billion, or 77.3% of the total volume in Ukraine, but their main part (65.4%) is own funds of enterprises and organizations and only 0.7% are the funds of foreign investors. The influence of farms’ categorical factors and the scale of commodity production on certain types of products is analyzed and a significant influence on the leadership of large agricultural associations (agricultural holdings) is revealed. The system of internal and external factors influencing the leadership of the regions is generalized in our study. The measures of the state agrarian policy should be intended to transition to production of products with high added value, optimization of land use system, improvement of investment climate, rendering of the state help to agrarian producers, development of infrastructure and system of logistics, information and legal support of agrarian export, introduction of innovative technologies in the field of decision making in farming.


PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5806 ◽  
Author(s):  
Bryony K. Willcox ◽  
Andrew J. Robson ◽  
Brad G. Howlett ◽  
Romina Rader

Insect pollinators provide an essential ecosystem service by transferring pollen to crops and native vegetation. The extent to which pollinator communities vary both spatially and temporally has important implications for ecology, conservation and agricultural production. However, understanding the complex interactions that determine pollination service provisioning and production measures over space and time has remained a major challenge. Remote sensing technologies (RST), including satellite, airborne and ground based sensors, are effective tools for measuring the spatial and temporal variability of vegetation health, diversity and productivity within natural and modified systems. Yet while there are synergies between remote sensing science, pollination ecology and agricultural production, research communities have only recently begun to actively connect these research areas. Here, we review the utility of RST in advancing crop pollination research and highlight knowledge gaps and future research priorities. We found that RST are currently used across many different research fields to assess changes in plant health and production (agricultural production) and to monitor and evaluate changes in biodiversity across multiple landscape types (ecology and conservation). In crop pollination research, the use of RST are limited and largely restricted to quantifying remnant habitat use by pollinators by ascertaining the proportion of, and/or isolation from, a given land use type or local variable. Synchronization between research fields is essential to better understand the spatial and temporal variability in pollinator dependent crop production. RST enable these applications to be scaled across much larger areas than is possible with field-based methods and will facilitate large scale ecological changes to be detected and monitored. We advocate greater use of RST to better understand interactions between pollination, plant health and yield spatial variation in pollinator dependent crops. This more holistic approach is necessary for decision-makers to improve strategies toward managing multiple land use types and ecosystem services.


2016 ◽  
Vol 3 (2) ◽  
pp. 159-166
Author(s):  
Asfan Muqtadir ◽  
Suryono Suryono ◽  
Vincensius Gunawan

The increasing of the needs of food crops raised several issues related to land use. The problems of land used caused by the lack of information related to productivity and eligibility used of land. The goal of this research is to implementation a model of Grey forecasting GM(1,1) to forecast agricultural production, especially in food crops. GM(1,1) is used to built a model with limited data samples and generate good forecasts for short libertine forecasts. This research uses data from the production of food crops for the 2004-2013 it can be calculated by using the model of GM (1,1). The results showed the model GM (1,1) can produce highly accurate forecasts, from the experimental results for pattern trends generate value ARPE 5.74% or accuracy of forecasts reached 94.26% in crop production.


Weed Science ◽  
1970 ◽  
Vol 18 (6) ◽  
pp. 681-686 ◽  
Author(s):  
J. G. Elliott

British Agriculture has existed for at least a thousand years, and it would require a book to record the major developments in weed control. My concern today is with the events of the past 25 years during which weed control has become established as a science, and herbicides have been given a widespread introduction. I hope to set these events against a historical background as they relate to Great Britain, and thereafter, to draw out some thoughts on the impact that modern weed science is making and will make in the future on crop production and land use.


2021 ◽  
Vol 68 (4) ◽  
pp. 1089-1107
Author(s):  
Violeta Babić ◽  
Vera Rajičić ◽  
Nenad Đurić

Triticale is a new type of real grain, which was created by the breeding and selection of a man. This species deserves more and more attention from both domestic producers and producers on a global scale because it encompassed all the positive properties of wheat and rye. The paper clearly presents the knowledge about the importance, nutritional value and application of triticale and the effect of its usage in a diet of monogastric animals. The variety of uses, appropriate chemical composition, acceptable and studied breeding technology, classifies triticale as an irreplaceable source of energy and protein needs of animals. Due to its multiple usages: for grain, fodder and as a raw material for biofuel, contributes to the economic sustainability of crop production. The needs of this plant at the level of agrotechnical investments are less than in other cereals, so triticale is increasingly presented in organic and sustainable agricultural production.


2016 ◽  
Vol 1 (90) ◽  
pp. 22-24
Author(s):  
V.F. Kaminskyi ◽  
S.G. Korsun

The aim of this work was to study the basic directions of scientific support introduction of organic farming in Ukraine. The study used methods of comparison, synthesis, analysis, induction and deduction. The article indicated on the main areas that need special attention from researchers and suggests one possible mechanism to remove the remaining obstacles to organizational issue introduction of scientific developments in the production of organic and training areas. This can speed up the creation of new and manage existing land ownership and land use organic farming with the introduction of advanced production technology of organic crop production.


Stanovnistvo ◽  
1999 ◽  
Vol 37 (1-4) ◽  
pp. 141-161
Author(s):  
Marina Todorovic ◽  
Gordana Vojkovic

The author begins by discussing the relationship between agriculture and population at a theoretical level, proceeds with a historical review of changes in the role and significance of an individual as agricultural producer, and finally, analyzes population as an element (potentials - limitations) of agricultural development in Serbia. The overall production results, and particularly the propensity to technical and technological innovation, as well as the ability to adapt to the changed conditions are, as we know well, crucially dependent on the structure of the working population. Hence, the author discusses regional differences in agricultural population by age, sex, level of education and productivity to provide a clear illustration of the impact of this element (indicator) on the population as the factor of agricultural production. The results show significant macroregional differences by this element with respect to the average for Serbia.


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