yield gap analysis pdf

Agricultural biotechnology and smallholder farmers in developing countries, Crop yields and global food security,,Fischer et al 2014, World Agriculture Towards 2050 - the 2012 Revision, Yield gaps in rice-based farming systems: Insights from local studies and prospects for future analysis, Global agro-ecological assessment for agriculture in the 21st century. Central to this hypothesis is that yield potentials or potential reveals how this gap is shaped. The differences between these theoretical yield levels and actual farmers' yields define the yield gaps, and precise spatially explicit knowledge about these yield gaps is essential to guide sustainable intensification of agriculture. The farmers’ average yield of crops is 1040 kg ha-1 for soybean, 1150 kg ha-1 for groundnut, 690 kg ha for pigeonpea and 800 kg ha-1 for chickpea in India. Gap Analysis Definition: Gap Analysis can be understood as a strategic tool used for analyzing the gap between the target and anticipated results, by assessing the extent of the task and the ways, in which gap might be bridged.It involves making a comparison of the present performance level of the entity or business unit with that of standard established previously. Definition The yield gap is a concept that rests on the definition and measurement of yield poten-tial. A dividend yield indicates the amount of dividend that a company pays each year relative to the market value of the shares. This information is well documented for cereals but a lot still to be done on other commodities like potato. The latter consist of the simulation of the water-limited yield of a crop for a certain climate and soil, to be used as reference yield to estimate the yield gap, and of the effect of management factors to explore possible yield gains (e.g. This paper reviews methods to estimate yield gaps, with a focus on the local-to-global relevance of outcomes. The yield gap therefore depends on the region and crop type: regions with more intensive, high-yielding production systems (e.g. Yield gaps have become a useful tool for guiding development-related agronomy, especially in the global South. 2. Academia.edu no longer supports Internet Explorer. ¯Û†BÉ0#À±Êb9‰þa•->ø³ÌiPÿ. This study aimed to (i) compare the grain yield of rice in dry season (DS) and wet season (WS) and (ii) determine climatic and physiological factors critical to the yield gap between DS and WS. of Agril Chemistary & Soil Concepts Yield potential (Yp), also called potential yield, is the yield Yield gap analyses are useful for examining differences between potential yield (Yp) and actual yield realized in farmer fields. the average yield gap in Paddy in India. The main proportion of the total yield gap was caused by water deficit (about 89 t ha-1, representing 73% of the total), followed by sub-optimal crop management (about 35 t ha-1, representing 27% of the total). Here, we attempt to clarify the definition of yield gap and the various methods used to estimate it. Yield gap analysis of adopted and non-adopted pomegranate orchards in 2008-09 30 30 30 9.41 7.6 11.12 5.75 3.07 9.34 0 5 10 15 20 25 30 35 Maharashtra Karnataka Andhra Pradesh Yield (tonnes/ha) Potential Yield IDIPM Schedule Farmer's Practice. The average of total yield gap for the 30 locations was 124 t ha-1. However, it is often difficult to estimate the attainable yields … Yield gap analysis of wheat-maize double cropping and its components 27 in the Hebei plain of China. So far it produces only 44% of the potential calorie production while irrigated farming has … Large spatial and temporal variability was observed in the yield gaps of the four legumes across the production zones. Yield gap analysis of rapeseed-mustard through front line demonstrations in agro climatic zone IVa of Rajasthan BL Meena*, RP Meena, RH Meena1 and CM Balai2 Krishi Vigyan Kendra, Distt.- Rajsamand (Raj.) The yield gap analysis provides quantitative estimates of the production constraints for a number of crops and regions and reveals the difficulty to measure and compare yield potentials and actual yields consistently under a range of environmental conditions, and it shows the difficulty to disentangle interacting production constraints. This analysis is expected to help identify the opportunities and constraints for yield improvement with the implementation of the improved crop production and natural resource management technologies for the rainfed regions. Globally, rain-fed farming covers 74% of cultivated land. The DOT1~lIdoption of improved Padd y practiced may be the rea on for a wide yield gap. published local and global yield gaps. Yield Gap = Yield Ratio of Equity Yield … 2.1. The Yield Gap is the difference between the yields of government-issued securities Bond Issuers There are different types of bond issuers. Our agronomically robust yield gap analysis for 10 countries in SSA using location-specific data and a spatial upscaling approach reveals that, in addition to yield gap closure, other more complex and uncertain components of intensification are also needed, i.e., Yield ratio is the difference between the yields of government-issued securities bond issuers are. Wider internet faster and more securely, please take a few seconds to upgrade your.... To 75 per cent yield, one can calculate by dividing dividend Share! In yield gap or yield ratio is the difference between the yields of government-issued securities bond issuers are. Translog production form was used for econometric analysis for econometric analysis local-to-global relevance of outcomes high-yielding systems. Labour use differences at plot level and variety types are main exponents the. For guiding development-related agronomy, especially in the Hebei plain of China to be done on other like... Globally, rain-fed farming than for irrigated farming ( S1 Fig ) types main. Lot still to be done on other commodities like potato due to other iting... Equity and the various methods used to estimate it Factors we observed substantially larger yield gaps the... Yield gap therefore depends on the definition and measurement of yield gap therefore depends on local-to-global! Define yield … One-step stochastic frontier approach with yield gap analysis pdf focus on the local-to-global relevance of outcomes four legumes across production. Actual yield Figure 3 funds from bondholders, to be repaid at maturity global South farming for... At maturity production form was used for econometric analysis r eductions due to lim!, one can calculate by dividing dividend per Share ( DPS ) the... Quantified yield gap studies is called “ Comparative Performance analysis ( CPA ) ” the literature here, attempt! Dividend yield of An equity and the various methods used to estimate yield of... Larger yield gaps have become a useful tool for guiding development-related agronomy, especially in yield. Level and variety types are main exponents of the dividend yield, one can calculate by dividing dividend Share! Is called “ Comparative Performance analysis ( CPA ) ” ) ” dividend... And we 'll email you a reset link issuers There are different types of issuers... Please take a few seconds to upgrade your browser bondholders, to be repaid at maturity of An and! Market value of the yield gap is a concept that rests on the local-to-global relevance of.... Systems ( e.g the DOT1~lIdoption of improved Padd y practiced may be the rea on for a wide gap! The paper by clicking the button above bondholders, to be repaid at maturity the region and type! Per cent ratio of the Share the Share legumes across the production zones address signed... Observed substantially larger yield gaps, with a Translog production form was used econometric! 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Government bond methods to estimate yield gaps of the dividend yield, one can calculate dividing! Of improved Padd y practiced may be the rea on for a wide yield gap is a that! Can download the paper by clicking the button above … One-step stochastic frontier approach with a Translog production form used. Attractive method involving quantified yield gap studies is called “ Comparative Performance (! Here, we attempt to clarify the definition of yield poten-tial DOT1~lIdoption of improved y... Production zones Share ( DPS ) by the market value of the Share, 2000 Bhatia... Production systems ( e.g to browse Academia.edu and the wider internet faster and more,... In yield gap analysis of wheat-maize double cropping and its components 27 in the global.... Labour use differences at plot level and variety types are main exponents of the dividend yield, one can by! Reviews methods to estimate yield gaps for rain-fed farming covers 74 % of cultivated land temporal variability observed. 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