fact that <strong>the</strong> area shares of <strong>the</strong> dom<strong>in</strong>ant pulses such as gram have decl<strong>in</strong>ed to give room foro<strong>the</strong>r pulses such as pigeon pea. But it should be noted that diversification and area balanceachieved by pulses have occurred only with a reduced area share. Among <strong>the</strong> non-foodgra<strong>in</strong>crops, spices are notable not only for <strong>the</strong>ir <strong>in</strong>creas<strong>in</strong>g tendency towards diversification butalso for a decl<strong>in</strong><strong>in</strong>g imbalance <strong>in</strong> <strong>the</strong>ir area composition. In contrast, fibres, fruits andvegetables, o<strong>the</strong>r field crops and plantation crops have all ev<strong>in</strong>ced a specialization tendencyespecially after 1986/87.3.5 Production and Productivity EffectsThe evaluation of crop pattern changes and <strong>the</strong>ir implications for crop diversificationand area composition cannot be completed without consider<strong>in</strong>g <strong>the</strong>ir output and productivityeffects. The production and productivity effects of area shifts can be evaluated byconsider<strong>in</strong>g both <strong>the</strong> growth rates of output, area, and yield of various crop groups as well as<strong>the</strong> crop group specific patterns evident <strong>in</strong> <strong>the</strong> relative contributions of area and yield tooverall output growth. Table 6 shows <strong>the</strong> growth rates and sources of growth for <strong>the</strong> majorcrop groups at <strong>the</strong> all India level for <strong>the</strong> three periods, i.e., 1966-76, 1976-86 and 1987-97.The shift of area from cereals (especially coarse cereals) has not led to any decl<strong>in</strong>e <strong>in</strong> <strong>the</strong>iroutput thanks to an impressive performance of <strong>the</strong>ir yield levels. The productivityimprovement <strong>in</strong> cereals has been such that it compensates even for <strong>the</strong> area loss of cerealsoccurred dur<strong>in</strong>g 1986-97. Notably, <strong>in</strong> <strong>the</strong> case of coarse cereals that have suffered a heavyarea loss ever s<strong>in</strong>ce 1976, yield improvement has been substantial especially <strong>in</strong> <strong>the</strong> lastperiod. As a result <strong>the</strong>ir output growth, which was only marg<strong>in</strong>al dur<strong>in</strong>g 1976-86, hasjumped to 1.14 percent dur<strong>in</strong>g 1986-97. For pulses, on <strong>the</strong> o<strong>the</strong>r hand, even though areagrowth has <strong>in</strong>creased from 0.21 to 0.32 percent between <strong>the</strong> last two periods, <strong>the</strong>ir outputgrowth turns out to be negative due to a fall <strong>in</strong> <strong>the</strong>ir yield levels. Foodgra<strong>in</strong>s show<strong>in</strong>g asteady rise <strong>in</strong> <strong>the</strong>ir output growth have a story similar to that of cereals as <strong>the</strong> contributions of<strong>the</strong>ir yield growth is <strong>in</strong>creas<strong>in</strong>g; whereas, those of <strong>the</strong>ir area growth are decl<strong>in</strong><strong>in</strong>g even tobecome negative <strong>in</strong> <strong>the</strong> recent period. Turn<strong>in</strong>g to <strong>the</strong> growth rates and growth sources ofoilseeds, it is useful to dist<strong>in</strong>guish <strong>the</strong> trend observed for <strong>the</strong> three oilseeds, i.e., rapeseed andmustard, sunflower and soybean from that observed for <strong>the</strong> oilseeds as a whole. This isbecause of <strong>the</strong> fact that <strong>the</strong> area shares of <strong>the</strong>se three oilseeds have grown tremendously s<strong>in</strong>ce1976. Due to <strong>the</strong>ir faster expansion, <strong>the</strong>ir comb<strong>in</strong>ed area share of 6.85 percent observed atpresent is higher than <strong>the</strong> comb<strong>in</strong>ed share of both groundnut and sesamum, which dom<strong>in</strong>ated<strong>the</strong> oilseed sector <strong>in</strong> <strong>the</strong> pre-Green Revolution era. While <strong>the</strong> output growth of n<strong>in</strong>e oilseedshas been impressive as compared to that of o<strong>the</strong>r crop groups, it is not as impressive as <strong>the</strong>comb<strong>in</strong>ed output growth of <strong>the</strong> three fast grow<strong>in</strong>g oilseeds. However, <strong>the</strong>re is a markeddifference <strong>in</strong> <strong>the</strong> sources of output growth between <strong>the</strong> n<strong>in</strong>e oilseeds and its sub-group.Although <strong>the</strong> contribution of area growth dom<strong>in</strong>ates that of yield growth <strong>in</strong> both cases, <strong>the</strong>contributions of area growth are far higher <strong>in</strong> <strong>the</strong> case of <strong>the</strong> three oilseeds as compared tothat <strong>in</strong> <strong>the</strong> case of n<strong>in</strong>e oilseeds. It should be noted that it is <strong>the</strong> higher area growth observed<strong>in</strong> <strong>the</strong> case of <strong>the</strong> three oilseeds, which has also compensated for <strong>the</strong> decl<strong>in</strong><strong>in</strong>g area share ofsome of <strong>the</strong> traditional oilseeds such as sesamum, l<strong>in</strong>seed and nigerseed. S<strong>in</strong>ce <strong>the</strong> yieldgrowth of <strong>the</strong> three oilseeds is also higher than that obta<strong>in</strong>ed for <strong>the</strong> n<strong>in</strong>e oilseeds, <strong>the</strong>productivity improvement <strong>in</strong> <strong>the</strong> case of former is also relatively higher than that of <strong>the</strong>traditional oilseeds. There is also a notable shift <strong>in</strong> <strong>the</strong> sources of output growth among <strong>the</strong>commercial crops (i.e., crops o<strong>the</strong>r than cereals, pulses, and oilseeds) as yield growth thatdom<strong>in</strong>ated over <strong>the</strong> area growth dur<strong>in</strong>g 1966-1986 becomes dom<strong>in</strong>ated <strong>in</strong> turn by a areagrowth dur<strong>in</strong>g 1986-97.39
The implications are clear that area shifts from crops need not be a problem as longas <strong>the</strong>ir productivity levels are <strong>in</strong>creas<strong>in</strong>g faster to compensate for <strong>the</strong>ir decl<strong>in</strong><strong>in</strong>g area share.This is what has happened especially <strong>in</strong> <strong>the</strong> case of coarse cereals that have been a net donorof area to oilseeds and o<strong>the</strong>r commercial crops. Despite <strong>the</strong>ir negative area growth of -4.36percent, <strong>the</strong>y managed to ma<strong>in</strong>ta<strong>in</strong> a positive output growth of 1.14 percent thanks to animpressive yield growth of 5.51 percent. S<strong>in</strong>ce this pattern is more or less repeated <strong>in</strong> <strong>the</strong>case of cereals as a whole, it is reasonable to say that <strong>the</strong> area shift has not affected foodsecurity. On <strong>the</strong> o<strong>the</strong>r hand, s<strong>in</strong>ce <strong>the</strong> area shifts were from low-value coarse cereals to highvalueoilseeds and s<strong>in</strong>ce such shifts were accompanied by yield improvements with<strong>in</strong> <strong>the</strong>oilseed sector, <strong>the</strong> area shifts have not only <strong>in</strong>creased <strong>the</strong> overall output of edible oils but alsocontributed to an enhancement of <strong>the</strong> <strong>in</strong>come level of farmers. In this sense, <strong>the</strong> area shiftshave actually contributed to broaden <strong>the</strong> foundation of food security.4. CROP DIVERSIFICATION AS A STRATEGY FOR VARIOUS NATIONALCOMMITMENTS4.1 Food and Nutritional Security and Poverty AlleviationThe agricultural growth rate of around 2.7 percent per annum <strong>in</strong> <strong>the</strong> post<strong>in</strong>dependenceperiod was much higher than <strong>the</strong> negligible growth rate of 0.3 percent perannum <strong>in</strong> <strong>the</strong> first half of this century. It is not only <strong>in</strong> <strong>the</strong> areas of foodgra<strong>in</strong> production butalso <strong>the</strong> production of commercial crops like cotton, oilseeds, sugar cane, fruits andvegetables as well as livestock products and fisheries have recorded significant <strong>in</strong>creasess<strong>in</strong>ce <strong>in</strong>dependence. Poverty eradication is one of <strong>the</strong> major objectives of plan development.The magnitude of <strong>the</strong> problem is quite stagger<strong>in</strong>g. The <strong>in</strong>cidence of poverty decl<strong>in</strong>ed from54.9 percent <strong>in</strong> 1973/74 to 36 percent <strong>in</strong> 1993/94. The absolute number of population did notdecl<strong>in</strong>e much throughout this period of 20 years. There were 321 million poor <strong>in</strong> 1973/74and 320 million <strong>in</strong> 1993/94. In <strong>the</strong> rural areas, <strong>the</strong> correspond<strong>in</strong>g numbers were 261 millionand 244 million. The land resources are limited and <strong>the</strong> average size of hold<strong>in</strong>g <strong>in</strong> India isonly 1.57 ha for <strong>the</strong> census year of 1990/91. The ma<strong>in</strong> determ<strong>in</strong>ants of poverty are: i) lack of<strong>in</strong>come and purchas<strong>in</strong>g power contributable to lack of productive employment; ii) <strong>the</strong>cont<strong>in</strong>uous <strong>in</strong>crease <strong>in</strong> price of food, specially foodgra<strong>in</strong>s which account for 70-80 percent of<strong>the</strong> consumption; and iii) <strong>in</strong>adequacy of social <strong>in</strong>frastructure, affect<strong>in</strong>g <strong>the</strong> quality of life of<strong>the</strong> people and <strong>the</strong>ir employability.The National Agenda for Governance of <strong>the</strong> present government has given toppriority to doubl<strong>in</strong>g food production <strong>in</strong> <strong>the</strong> next 10 years. The food <strong>in</strong>cludes foodgra<strong>in</strong>s (rice,wheat, coarse cereals, pulses), oilseeds, sugar (sugar cane), fruits and vegetables, meat, milk,and fish. The Action Plan envisages a detailed strategy and specific problems of productivityto substantially <strong>in</strong>crease <strong>the</strong> supply of various food items <strong>in</strong> such a way that <strong>the</strong> demand forsuch items for <strong>the</strong> entire population is comfortably met and some exportable surplus alsobecomes available. The development strategy to be perused <strong>in</strong> <strong>the</strong> medium term has beenconsciously <strong>in</strong>terwoven with <strong>the</strong> country’s food security concern.4.2 Natural Resource Management for Susta<strong>in</strong>able Agricultural DevelopmentIt is known fact that <strong>the</strong>re is little scope for fur<strong>the</strong>r expansion of <strong>the</strong> net sown area(142 m/ha) and that land scarcity will become an acute feature of <strong>the</strong> rural economy. Wateris a precious national asset and <strong>the</strong>re are several concerns regard<strong>in</strong>g water resources <strong>in</strong> <strong>the</strong>40
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With regard to success stories of c
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5. CHALLENGES, OPPORTUNITIES AND PR
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It recognizes the need for a differ
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CROP DIVERSIFICATION IN THE PHILIPP
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2.3 Yield Per Hectare of Agricultur
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In coconut, diversification means t
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were used in the preparation of the
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There are a variety of factors that
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Table 1. Production Area of Commerc
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Table 3. Yield (tonnes) Per Hectare
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Table 5. Selected Macroeconomic and
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Table 7. Dominant Rice Cropping Pat
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1.2 Soils in the Crop Diversificati
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Table 1. Major Crops, Their Extents
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drained and rice on poorly drained
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Figure 3. Schematic Representation
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The potato production in the up cou
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Table 6 clearly shows that there is
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In addition to the above scenario,
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6. GOVERNMENT POLICIES AND STRATEGI
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Panabokke, C.R. 1996. Soils and agr
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y promoting diversified crops inste
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Over the past few years, agricultur
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Land TenureMore than half of the Th
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The New theory is a novel approach
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Mushrooms: nang-fah mushroom (Pleur
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- Farmers can sell their rice at a
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In order to maintain the growth rat
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REFERENCESAthipanan, Withaya. 1995.
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CROP DIVERSIFICATION IN VIET NAMNgu
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3. PATTERNS OF CROP DIVERSIFICATION
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the contour with mulching using ric
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development of new crop varieties a
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• Cultivated and growing area und
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other hand, the size of an average
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4.1 Crop NutritionA major contribut
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increased from 130 million ha to 15
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in tobacco nurseries. These also he
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past experience. A sustainable prog
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diversification, taking into accoun
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The major outputs are:- Integration
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• Database and information materi
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• Business plans have been formul
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minimize such losses. The developme
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LIST OF PARTICIPANTSBANGLADESHM. En
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SRI LANKAH.P.M. GunasenaDirectorPos
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FAOR.B. SinghAssistant Director-Gen