Study on Growth and Instability in Pulses Production in Bihar: A Decomposition Analysis

An assessment of changes in the area, production and productivity of the pulse crops is considered helpful for their management and policy-making to ensure the nutritional security of the ever-growing population. The results revealed that the annual growth rates of production and productivity of lentils were comparatively high to other pulses.Instability indices for the area, production and productivity of green gram were 7.04, 10.84, and 9.34, respectively, lower than other pulse crops grown in the state. The decomposition analysis revealed that the yield effect of red gram was negative. Low productivity and its cultivation by the marginal and small farmers under rain-fed conditions with poor crop management practices could be the probable reason for the negative yield effect. The results showed that the area mainly influenced production, and productivity did not play any role in the state. The study emphasized the need to expand the area under pulse crops and increase their production through technological interventions.

2021 ◽  
Vol 13 (2) ◽  
pp. 560
Author(s):  
Petri P. Kärenlampi

A “normal forest”, an idealized estate with a uniform distribution of stand ages, can be used in the study of sustainable management practices. As the normal forest contains a variety of stand ages, the characteristics of the stands can be represented in terms of a “normal stand”, with properties known as a function of age. This paper takes seven never-thinned stands as seven “normal stands”, which describe seven estates of normal forest. The intention is to study the robustness of carbon storage microeconomics to varying estate characteristics. It was found that the economically optimal rotation ages vary. The state sums of volume and capitalization, corresponding to any optimal rotation, also vary significantly. Growth rates vary more than the optimal expected stand volumes. Consequently, any excess volume related to carbon storage adds on to an almost unified basic volume. For all seven normal estates, the most economical way of increasing carbon storage is to increase the size of trees retained in thinning from above.


2020 ◽  
Vol 40 (01) ◽  
Author(s):  
P. Venkata Subbaiah ◽  
V. Jyothi

Chickpea, blackgram and greengram are important rabi pulse crops grown in Andhra Pradesh. Adoption gaps were identified in these crops indicating the need for the demonstration of the improved crop management practices. In chickpea the variety NBeG47, blackgram TBG 104, greengram variety WGG 42 were introduced in farmers fields in rabi season. Along with the varietal introduction the whole package of improved management practices were demonstrated. A total of 50 FLDs each in chickpea, blackgram and greengram were organized for two consecutive years 2016-17 and 2017-18 in Krishna district, Andhra Pradesh. Highest yield of 27.50 q/ha was recorded with NBeG-47 in the demo fields with an average yield of 25.50 q/ha. In blackgram a highest yield of 17.25 q/ha was recorded in the demo with an average yield of 14.59 q/ha as againstcheck with an average yield of 11.50 q/ha. In greengram a highest yield of 16.50 q/ha was recorded in the demo fields with an average yield of 15.12 q/ha as against check with an average yield of 10.00 q/ha. Paired t test of the economics of demo and check showed significant positive difference between improved practice and farmers practice.


Author(s):  
Shivalika Sood ◽  
Hari Singh ◽  
Diksha Sethi

The study aims to examine the growth performance of pulses in Rajasthan. The study was entirely based on secondary data collected from various publications of the state government. The trends in area, production and yield of major pulses in Rajasthan were worked out through compound growth rate, instability index and decomposition analysis for the last eighteen years from 2000-01 to 2017-18, which was further divided into two sub-period decade wise i.e period-I (2000-01 to 2008-09) and period-II (2009-10 to 2017-18). Results have shown that, pulse area in state considerably increased. Area under moong bean registered a significant growth rate of 6.66 per cent which was highest compared to other pulse crops. Growth rate for area, production and productivity of chickpea was found to be significantly positive. Chickpea and pigeon pea crops were more stable compared to other pulse crops in the state. Expansion in area was the major reason for increase in production of chickpea, moong bean and urd bean in the state. The production of chickpea increased more due to area effect and the production of pigeon pea increased because of improvement in the yield and its interaction with area.


2019 ◽  
Vol 56 (Special) ◽  
pp. 82-91 ◽  
Author(s):  
LV Subba Rao ◽  
RA Fiyaz ◽  
AK Jukanti ◽  
G Padmavathi ◽  
J Badri ◽  
...  

India is the second largest producer of rice in the world and it is the most important staple food grain. All India Coordinated Rice Improvement Project (AICRIP) was initiated with objective of conducting multi-location trials to identify suitable genotypes of high yield potential along with appropriate crop management practices. Since its inception AICRIP contributed significantly in meeting the growing demand both within and outside India. Significant progress has been achieved through AICRIP in terms of varietal release thereby increasing the crop productivity and also meeting the food and nutritional security. This paper makes a sincere effort in bringing out the significant achievements/milestones achieved under the AICRIP program and also gives a few directions for widening the areas under AICRIP.


1976 ◽  
Vol 5 (3) ◽  
pp. 255-259 ◽  
Author(s):  
John Muir ◽  
J. S. Boyce ◽  
E. C. Seim ◽  
P. N. Mosher ◽  
E. J. Deibert ◽  
...  

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 298
Author(s):  
Fekremariam Asargew Mihretie ◽  
Atsushi Tsunekawa ◽  
Nigussie Haregeweyn ◽  
Enyew Adgo ◽  
Mitsuru Tsubo ◽  
...  

Teff is an important crop for smallholder farmers in Ethiopia. Improved crop management practices are needed to increase teff productivity and decrease production costs. Here, we used a split–split plot design to evaluate the impacts of different tillage, sowing, and soil compaction practices, and their combinations, on agronomic performance, weed population, lodging, and cost in teff production at the Aba Gerima watershed in northwestern Ethiopia in 2018–2020. Reduced tillage (RT) improved soil moisture, resulting in increased agronomic performance and decreased production costs compared with conventional tillage (CT); however, the weed population was substantially larger with RT than with CT. Row planting (RP) reduced seed cost and lodging but increased sowing and weeding costs compared with broadcast planting (BP). Plant population and leaf area index were substantially greater with BP than with RP during early-stage growth, but this reversed during late-stage growth. Despite labor costs being significantly greater with (WC) compaction than without (NC), little to no differences were observed in the weed population or in agronomic performance. Partial cost–benefit analysis revealed that RT–RP–WC followed by RT–RP–NC was the most economical treatment combination, suggesting that RT–RP–NC could be a labor-effective means of increasing teff production by smallholder farms in Ethiopia.


Author(s):  
Kate Crowley ◽  
Jenny Stewart ◽  
Adrian Kay ◽  
Brian W. Head

State-centred and society-centred explanations in comparative public policy analysis disagree markedly on the extent to which the state has autonomy or is essentially a clearing-house for outside forces. In this chapter, we reconsider the position of the state in policy studies by investigating the interactions and inter-dependency between the state and society rather than making a binary choice between state-centred and society-centred perspectives on governance. The core argument is that policy studies can improve its ability to apprehend the position of the state in dilemmas of contemporary policy-making by acknowledging that the state is, at once, both critical to collective action and reliant on crucial elements of societal support for its policy effectiveness. In such terms, governance is a useful label for the variety of ways in which society is not simply acted upon by the state, but actively shapes the actions of and outcomes of state activity.


Weed Science ◽  
2015 ◽  
Vol 63 (2) ◽  
pp. 477-490 ◽  
Author(s):  
John R. Teasdale ◽  
Steven B. Mirsky

Insufficient weed control is a major constraint to adoption of reduced-tillage practices for organic grain production. Tillage, cover crop management, and crop planting date are factors that influence emergence periodicity and growth potential of important weed species in these systems. We assessed two hairy vetch cover crop management practices, disk-kill and roll-kill, across a range of corn planting dates from early May to late June in three experiments in Beltsville, MD. Patterns of seed dormancy, emergence, and early weed growth were determined for overseeded populations of common ragweed, giant foxtail, and smooth pigweed, three important species in the Mid-Atlantic states that represent early to late emergence. Common ragweed emergence was lowest and dormancy was highest of the three species across all planting dates. Giant foxtail emergence was higher than the other species in roll-killed hairy vetch and included a significant number of seeds that germinated before rolling operations in late June. Smooth pigweed had the highest emergence and lowest dormancy in disk-killed hairy vetch in June. Individual giant foxtail plant weight was higher in roll-killed than disk-killed hairy vetch in 2 of 3 yr, whereas that of smooth pigweed plants was higher in disk-killed than roll-killed vetch in 2 of 3 yr. Giant foxtail was the dominant species in roll-killed hairy vetch (averaged 79% of total weed biomass at corn silking), probably because of early germination and establishment before rolling operations. Smooth pigweed was the dominant species in disk-killed hairy vetch at June planting dates (averaged 77% of total weed biomass), probably because of high growth rates under warm conditions in tilled soil. This research demonstrated that cover crop management practices and the timing of planting operations can shift the dominant species of weed communities in organic farming systems and must be considered in long-term weed management planning.


2016 ◽  
Vol 37 (5Supl2) ◽  
pp. 3625 ◽  
Author(s):  
Willian Vilela Rocha ◽  
Valéria De Sá Jayme ◽  
Ana Lourdes Arrais de Alencar Mota ◽  
Wilia Marta Elsner Diederichsen de Brito ◽  
Glauciane Ribeiro de Castro Pires ◽  
...  

Bovine tuberculosis results in economic losses in livestock production and poses a risk to public health. This study aimed to characterize the epidemiological status of bovine tuberculosis in adult cows in the state of Goiás, Brazil. The state was divided into three sampling strata, corresponding to different livestock production circuits. A total of 18,659 animals were tested with the comparative cervical tuberculin test (CCT), in 300 randomly sampled bovine herds per stratum. An epidemiological questionnaire was used to identify health and management practices that may be associated with the presence of tuberculosis infection in the herd. In Stratum 1, dominated by beef cattle, no animals reacted to the CCT. In Stratum 2, which covers the main dairy regions of the state, the prevalence was estimated at 8.67% [5.73 to 12.74%] for herds and at 0.9% [0.21 to 1.58%] for animals. In Stratum 3, characterized by a mix of dairy, beef and dual-purpose herds, the prevalence was estimated at 1.00% [0.21 to 2.89] for herds and 0.30% [0.10 to 0.49 %] for animals. The overall prevalence in the state of Goiás was 3.43% [2.20 to 4.67%] for herds and 0.30% [0.10 to 0.49%] for animals. The multiple logistic regression analysis revealed that herd-level risk factors associated with the presence of the bovine tuberculosis are: the location of the herd in Stratum 2 (OR = 12.05 [3.52 to 41.28]) and the number of times a cow is milked per day (OR = 6.27 [2.72 to 14.44]). Regular veterinary care was identified as a protective factor (OR = 0.38 [0.15-0.94]). These results indicate that bovine tuberculosis is endemic in the state; its spatial distribution is heterogeneous with a strong concentration in dairy regions. The most intensive dairy farms are those with the highest risk, which is consistent with what other authors’ found elsewhere in Brazil. The epidemiological information generated by this study provides information for planning of risk-based surveillance actions, and justifies the adoption of free-herd certification programs for bovine tuberculosis in the main dairy regions of Goiás.


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