scholarly journals Can rainfed agriculture feed the world? An assessment of potentials and risk.

Author(s):  
C. de Fraiture ◽  
L. Karlberg ◽  
J. Rockström
Author(s):  
Raj Singh ◽  
Anchal Dass ◽  
V. K. Singh

The Agriculture sector plays an important role in the Indian Economy. Besides assuring the food grain security to nearly 1350 million (m) human population and fodder security to 512.05 m livestock population of the country, it contributes about 16% of total GDP, 12.5% of total export, and provides employment to over 50% total workforce of the country. Owing to the introduction of improved production technologies, expansion of irrigation facilities, increase the use of synthetic inputs, popularization of the technologies, implementation of policies for the agricultural development and greater investment in agricultural sector, food grain output in the country increased from 51.8 million tons (m.t) in 1950-51 to 285.01 m t in 2018-19. The growth rate of food grain production for the period between 2010-11 and 2017-18 was almost double the population growth rate. Despite the overwhelming growth in food grain production, market size, availability of improved production technologies and being the front ranking producer of many crops in the world, Indian agriculture is still facing several challenges, which are severely affecting its performance, income, employment and livelihood of the farmers. Rainfed agriculture in India occupies the largest area and the value of the produce in the world. It accounts for nearly 52% of the total net cultivated area of the country. Rainfed agriculture must play an important role in food security and sustainability of livelihoods because almost 40% human and 60% livestock population of the country depend on it. But, it is And characterized by unstable yield, dominance of marginal and small operational holdings, occurrence of frequent drought, low income, and lack of regular employment, food insecurity, out migration, malnutrition and poor socio-economic status of the inhabitants of the rainfed regions. In the era of globalization, transformation of subsistence agriculture to commercial agriculture coupled with increase of income higher per unit area is the need of the day to sustain the people’s livelihood in the rainfed regions. Efficient use of rainwater and soil moisture, adoption of improved production technologies of crop production, alternate land use systems (ALUS), integrated farming systems (IFSs), conservation of natural resources and better access to markets are of prime importance not only for enhancing crop production, income and employment, but also to sustain the livelihoods of the farmers under variable climatic condition of the rainfed regions. Hence, efforts have been made to discuss the constraints and improved production technologies, which can be effective to realize higher crop productivity and income from the rainfed agriculture in India.


2018 ◽  
Vol 41 ◽  
Author(s):  
Ana Gantman ◽  
Robin Gomila ◽  
Joel E. Martinez ◽  
J. Nathan Matias ◽  
Elizabeth Levy Paluck ◽  
...  

AbstractA pragmatist philosophy of psychological science offers to the direct replication debate concrete recommendations and novel benefits that are not discussed in Zwaan et al. This philosophy guides our work as field experimentalists interested in behavioral measurement. Furthermore, all psychologists can relate to its ultimate aim set out by William James: to study mental processes that provide explanations for why people behave as they do in the world.


2020 ◽  
Vol 43 ◽  
Author(s):  
Michael Lifshitz ◽  
T. M. Luhrmann

Abstract Culture shapes our basic sensory experience of the world. This is particularly striking in the study of religion and psychosis, where we and others have shown that cultural context determines both the structure and content of hallucination-like events. The cultural shaping of hallucinations may provide a rich case-study for linking cultural learning with emerging prediction-based models of perception.


2019 ◽  
Vol 42 ◽  
Author(s):  
Nazim Keven

Abstract Hoerl & McCormack argue that animals cannot represent past situations and subsume animals’ memory-like representations within a model of the world. I suggest calling these memory-like representations as what they are without beating around the bush. I refer to them as event memories and explain how they are different from episodic memory and how they can guide action in animal cognition.


1994 ◽  
Vol 144 ◽  
pp. 139-141 ◽  
Author(s):  
J. Rybák ◽  
V. Rušin ◽  
M. Rybanský

AbstractFe XIV 530.3 nm coronal emission line observations have been used for the estimation of the green solar corona rotation. A homogeneous data set, created from measurements of the world-wide coronagraphic network, has been examined with a help of correlation analysis to reveal the averaged synodic rotation period as a function of latitude and time over the epoch from 1947 to 1991.The values of the synodic rotation period obtained for this epoch for the whole range of latitudes and a latitude band ±30° are 27.52±0.12 days and 26.95±0.21 days, resp. A differential rotation of green solar corona, with local period maxima around ±60° and minimum of the rotation period at the equator, was confirmed. No clear cyclic variation of the rotation has been found for examinated epoch but some monotonic trends for some time intervals are presented.A detailed investigation of the original data and their correlation functions has shown that an existence of sufficiently reliable tracers is not evident for the whole set of examinated data. This should be taken into account in future more precise estimations of the green corona rotation period.


Popular Music ◽  
2003 ◽  
Vol 22 (2) ◽  
pp. 241-245
Author(s):  
Inez H. Templeton
Keyword(s):  
Hip Hop ◽  

Author(s):  
O. Faroon ◽  
F. Al-Bagdadi ◽  
T. G. Snider ◽  
C. Titkemeyer

The lymphatic system is very important in the immunological activities of the body. Clinicians confirm the diagnosis of infectious diseases by palpating the involved cutaneous lymph node for changes in size, heat, and consistency. Clinical pathologists diagnose systemic diseases through biopsies of superficial lymph nodes. In many parts of the world the goat is considered as an important source of milk and meat products.The lymphatic system has been studied extensively. These studies lack precise information on the natural morphology of the lymph nodes and their vascular and cellular constituent. This is due to using improper technique for such studies. A few studies used the SEM, conducted by cutting the lymph node with a blade. The morphological data collected by this method are artificial and do not reflect the normal three dimensional surface of the examined area of the lymph node. SEM has been used to study the lymph vessels and lymph nodes of different animals. No information on the cutaneous lymph nodes of the goat has ever been collected using the scanning electron microscope.


Author(s):  
W. L. Steffens ◽  
Nancy B. Roberts ◽  
J. M. Bowen

The canine heartworm is a common and serious nematode parasite of domestic dogs in many parts of the world. Although nematode neuroanatomy is fairly well documented, the emphasis has been on sensory anatomy and primarily in free-living soil species and ascarids. Lee and Miller reported on the muscular anatomy in the heartworm, but provided little insight into the peripheral nervous system or myoneural relationships. The classical fine-structural description of nematode muscle innervation is Rosenbluth's earlier work in Ascaris. Since the pharmacological effects of some nematacides currently being developed are neuromuscular in nature, a better understanding of heartworm myoneural anatomy, particularly in reference to the synaptic region is warranted.


Author(s):  
O. E. Bradfute

Maize mosaic virus (MMV) causes a severe disease of Zea mays in many tropical and subtropical regions of the world, including the southern U.S. (1-3). Fig. 1 shows internal cross striations of helical nucleoprotein and bounding membrane with surface projections typical of many plant rhabdovirus particles including MMV (3). Immunoelectron microscopy (IEM) was investigated as a method for identifying MMV. Antiserum to MMV was supplied by Ramon Lastra (Instituto Venezolano de Investigaciones Cientificas, Caracas, Venezuela).


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