scholarly journals Estimating Area and Production of Rice under Different Crop-cut Methods in Bangladesh

2016 ◽  
Vol 20 (1) ◽  
pp. 11-16
Author(s):  
MS Kabir ◽  
DNR Paul ◽  
MI Hossain ◽  
NMF Rahman
Keyword(s):  
Rice Yield ◽  
Agricultural Extension ◽  
Rice Production ◽  
Rice Cultivation ◽  
Public Agencies ◽  
The Public ◽  
Transplanted Rice ◽  
Rice Area ◽  
Plot Yield

Crop-cut is a widely used and well accepted procedure for estimating rice yield. This yield is then multiplied by the area planted under rice cultivation to determine rice production of the country. In Bangladesh, crop-cut is used to estimate transplanted rice yield. Department of Agricultural Extension (DAE) and Bangladesh Bureau of Statistics (BBS) as the public agencies provide estimate on area and production of rice but they use different methods of crop-cut. The estimates of these two agencies on area and production of rice are different posing a question to the users on the reliability of the estimates. An attempt has been made with the objective to formulate a protocol that provides reliable and unique estimates on rice area and production. It is suggested to make at least three cuts in each plot to minimize the chance of over or under estimation of the whole plot yield and the radius of the circle should be 178.5cm so that the cut area becomes 10 m2 in order to easy conversion of the crop-cut yield to t ha-1.Bangladesh Rice j. 2016, 20(1): 11-16

scholarly journals Rice Cultivation - A Way of Life for the People of North Eastern Hill Region of India

2021 ◽  
Author(s):  
Noren Singh Konjengbam ◽  
Mayurakshee Mahanta ◽  
Andrean Allwin Lyngdoh
Keyword(s):  
Rice Variety ◽  
National Average ◽  
Rice Production ◽  
Rice Cultivation ◽  
Way Of Life ◽  
The North ◽  
Hill Region ◽  
The People ◽  
Rice Area ◽  
North Eastern

Being an amazing picturesque of land, the North Eastern Hill Region of India, consisting of more than 200 ethnic groups, has only about 2.27% of the total rice area and shares only 1.96% of the total rice production in the country. Whether profitable or not, the rice cultivation is a way of life for the people of North Eastern Hill Region of India. Till today, the production and productivity of rice in this region is below the national average because of its fragile ecosystem and the varied physio-graphic conditions pertaining to this region. Neither the wider recommendation of agricultural technology such as variety nor the use of a single technology or variety can solve this problem of low yield. However, the development of location specific high yielding rice variety using the existing land races prevalent in the area can be one of the promising technique for improving the production and productivity of rice cultivation in this region.

An analysis of growth trend, instability and determinants of rice production in Assam

2017 ◽  
Vol 51 (04) ◽  
Author(s):  
Annesha Mech
Keyword(s):  
Linear Model ◽  
Negative Impact ◽  
Rice Production ◽  
Rice Cultivation ◽  
Growth Trend ◽  
Function Coefficient ◽  
Rice Area ◽  
Yearly Average ◽  
Log Linear ◽  
The Impact

Rice is one of the most dominant crop in Assam occupying about 70 per cent of the net cultivated area. It accounts for about 6 per cent of the national rice area and 4 per cent of production of India. This paper makes an attempt to examine the growth trend, instability and factors influencing rice production in Assam over the period 1972-73 to 2014-15. Annual Compound Growth Rates of area, production and yield is calculated using log-linear function. Coefficient of Variation is employed to assess the instability of rice production in Assam. To estimate the impact of various factors on rice production in Assam, three types of models are used namely linear model, log-linear model and a log-linear model with autocorrelation corrections. In all the models, the dependent variable is rice yield and the independent variables are yearly average rainfall, yearly average temperature of the state; area of rice cultivation in hectare; area covered by HYV seeds in hectare; area covered by irrigation in hectare; fertilizer used in kg per hectare. The estimated result of log-linear model with autocorrelation corrections shows that among the various determinants influencing rice production during the period 1972 to 2014, area under rice cultivation in hectares; area covered by HYV seeds in hectare; fertilizer used in kg per hectare were found to have a positive significant impact on rice production in Assam. Temperature is found to have a negative impact on rice production.

scholarly journals Prediction of Rice Yield and Economic Thresholds by Some Weeds-Rice Competition in Transplanted Rice Cultivation

2011 ◽  
Vol 31 (3) ◽  
pp. 289-293 ◽  
Author(s):  
Byeong-Chul Moon ◽  
Jong-Gun Won ◽  
Young-Lim Kim ◽  
Sung-Woo Kim ◽  
In-Yong Lee ◽  
...  
Keyword(s):  
Rice Yield ◽  
Rice Cultivation ◽  
Transplanted Rice ◽  
Economic Thresholds

scholarly journals Integrated Method for Rice Cultivation Monitoring Using Sentinel-2 Data and Leaf Area Index

2019 ◽  
Author(s):  
Abdelraouf M. Ali ◽  
Igor Savin ◽  
Anton Poddubsky ◽  
Mohamed Aboelghar ◽  
Nasser Salem
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Rice Yield ◽  
High Accuracy ◽  
Rice Production ◽  
Rice Cultivation ◽  
Rice Crop ◽  
Area Index ◽  
Sentinel 2 ◽  
Yield Map

Rice is an essential crop for national food security in Egypt. Increasing the population calls for regular increases in rice production. At the same time, cultivated rice crop areas should be decreased because of the gradual scarcity of irrigation water. This means more rice production should be gained from less rice area. This situation calls for the annual accurate system for rice monitoring and yield estimation. Therefore, it is necessary to apply a remotely sensed based system for rice cultivation assessment using satellite imagery parallel with field measurements of some biophysical parameters. Multi-temporal normalized difference vegetation index (NDVI) extracted from twelve sentinel-2 imagery cover the whole summer season with variance and maximum value assessed by ground control points (GCPs), were used to isolate uncultivated areas, then to isolate rice areas and other vegetation covers. object-based classification methods with kappa co-efficient 0.9261 and overall accuracy 94.92% was generated to discriminate rice crop area and other summer crops on the study area. Leaf area index (LAI) for the experiment the l site was calculated using the surface energy balance algorithm for Land (SEBAL) model and then tested versus measured (LAI). NDVI and LAI were used to generate an empirical ran rice yield prediction model. Then, this model was used to produce rice to yield a map. The study was carried out in an experimental site in Kafr Elsheikh governorate with a total area of 5040 Hectare. Produced cultivated land use map showed 95% overall accuracy. High similarity was observed between measured and calculated (LAI) with high accuracy of R2 = 0.94. of Rice, yield map showed expected to yield more to than a month before harvest. The generated yield map was tested using a correlation coefficient between actual yield and estimated yield with high accuracy R2 = 0.9. This method is applicable to estimate the acreage and productivity of rice in the northern Nile delta in adequate time before harvest.

KUALITAS LAYANAN KETERBUKAAN INFORMASI PUBLIK BERBASIS WEBPORTAL PADA PEJABAT PENGELOLA INFORMASI DAN DOKUMENTASI (PPID) KABUPATEN SLEMAN TAHUN 2019

2020 ◽  
Vol 3 (1) ◽  
pp. 55-66
Author(s):  
Coni Wanprala ◽  
Isnaini Muallidin ◽  
Dewi Sekar Kencono
Keyword(s):  
Information Disclosure ◽  
Central Government ◽  
Public Information ◽  
Descriptive Study ◽  
Field Observations ◽  
Public Agencies ◽  
The Public ◽  
Qualitative Descriptive ◽  
The Government ◽  
Data Collection Technique

At present the development of technology and information has reached a very rapid level. Technology and information are used as a service media in the government environment which is also known as e-Government, one of which is the service of public information disclosure. The central government through Law No. 14 of 2008 concerning Openness of Public Information, encourages all Public Agencies including the Sleman Regency Government to make transparency in the administration of the state by utilizing information technology. This research is a qualitative descriptive study which aims to describe the reality that occurs. The object of research in this study is the official website of the Information and Documentation Management Officer (PPID) of Sleman Regency with the domain https://ppid.slemankab.go.id then the Sleman Regency Communication and Informatics Office as the organizer of the public information disclosure program. The data collection technique itself is carried out by means of interviews, documentation studies, and field observations (observations). After collecting and presenting data, then the data will be reduced first then analyzed and concluded. From the results of the study, in general the researchers concluded that the Sleman Regency PPID website had reached the level of qualification to become a quality website, however there were still some improvements and evaluations that had to be done by the relevant agencies in order to be better, namely (i) the website was still being assessed as a one-way service (ii) There are still many OPDs that are not ready to implement PPID (iii) data and information are still not updated (iv) lack of responsiveness of services in requests for information.

scholarly journals Assessing Opportunities to Increase Yield and Profit in Rainfed Lowland Rice Systems in Indonesia

Agronomy ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 777
Author(s):  
Erythrina Erythrina ◽  
Arif Anshori ◽  
Charles Y. Bora ◽  
Dina O. Dewi ◽  
Martina S. Lestari ◽  
...  
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Nutrient Management ◽  
Agricultural Research ◽  
Rice Yield ◽  
Information Access ◽  
Water Reservoir ◽  
Dry Season ◽  
Rice Production ◽  
Yield Gap

In this study, we aimed to improve rice farmers’ productivity and profitability in rainfed lowlands through appropriate crop and nutrient management by closing the rice yield gap during the dry season in the rainfed lowlands of Indonesia. The Integrated Crop Management package, involving recommended practices (RP) from the Indonesian Agency for Agricultural Research and Development (IAARD), were compared to the farmers’ current practices at ten farmer-participatory demonstration plots across ten provinces of Indonesia in 2019. The farmers’ practices (FP) usually involved using old varieties in their remaining land and following their existing fertilizer management methods. The results indicate that improved varieties and nutrient best management practices in rice production, along with water reservoir infrastructure and information access, contribute to increasing the productivity and profitability of rice farming. The mean rice yield increased significantly with RP compared with FP by 1.9 t ha–1 (ranges between 1.476 to 2.344 t ha–1), and net returns increased, after deducting the cost of fertilizers and machinery used for irrigation supplements, by USD 656 ha–1 (ranges between USD 266.1 to 867.9 ha–1) per crop cycle. This represents an exploitable yield gap of 37%. Disaggregated by the wet climate of western Indonesia and eastern Indonesia’s dry climate, the RP increased rice productivity by 1.8 and 2.0 t ha–1, with an additional net return gain per cycle of USD 600 and 712 ha–1, respectively. These results suggest that there is considerable potential to increase the rice production output from lowland rainfed rice systems by increasing cropping intensity and productivity. Here, we lay out the potential for site-specific variety and nutrient management with appropriate crop and supplemental irrigation as an ICM package, reducing the yield gap and increasing farmers’ yield and income during the dry season in Indonesia’s rainfed-prone areas.

scholarly journals Effect of Digestate and Straw Combined Application on Maintaining Rice Production and Paddy Environment

2021 ◽  
Vol 18 (11) ◽  
pp. 5714
Author(s):  
Xue Hu ◽  
Hongyi Liu ◽  
Chengyu Xu ◽  
Xiaomin Huang ◽  
Min Jiang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Surface Water ◽  
Soil Organic Matter ◽  
Paddy Soil ◽  
Rice Yield ◽  
Soil Surface ◽  
Rice Production ◽  
Straw Decomposition ◽  
Rice Grains ◽  
Combined Application

Few studies have focused on the combined application of digestate and straw and its feasibility in rice production. Therefore, we conducted a two-year field experiment, including six treatments: without nutrients and straw (Control), digestate (D), digestate + fertilizer (DF), digestate + straw (DS), digestate + fertilizer + straw (DFS) and conventional fertilizer + straw (CS), to clarify the responses of rice growth and paddy soil nutrients to different straw and fertilizer combinations. Our results showed that digestate and straw combined application (i.e., treatment DFS) increased rice yield by 2.71 t ha−1 compared with the Control, and digestate combined with straw addition could distribute more nitrogen (N) to rice grains. Our results also showed that the straw decomposition rate at 0 cm depth under DS was 5% to 102% higher than that under CS. Activities of catalase, urease, sucrase and phosphatase at maturity under DS were all higher than that under both Control and CS. In addition, soil organic matter (SOM) and total nitrogen (TN) under DS and DFS were 20~26% and 11~12% higher than that under B and DF respectively, suggesting straw addition could benefit paddy soil quality. Moreover, coupling straw and digestate would contribute to decrease the N content in soil surface water. Overall, our results demonstrated that digestate and straw combined application could maintain rice production and have potential positive paddy environmental effects.

Tolerance of Southern US Rice Cultivars to Benzobicyclon

2017 ◽  
Vol 31 (5) ◽  
pp. 658-665
Author(s):  
Mason L. Young ◽  
Jason K. Norsworthy ◽  
Robert C. Scott ◽  
Lon T. Barber
Keyword(s):  
Yield Loss ◽  
Rice Yield ◽  
Rice Production ◽  
Severe Injury ◽  
Rice Cultivars ◽  
Visible Injury ◽  
Tropical Japonica ◽  
Southern Us ◽  
Crop Injury ◽  
Rough Rice

Benzobicyclon is the first 4-hydroxyphenylpyruvate dioxygenase-inhibiting herbicide pursued for commercial registration in U.S. rice production. A study was conducted in 2015 and 2016 to evaluate the response of eight rice cultivars to post-flood application timings of benzobicyclon at 494 g ai ha-1(proposed 2X rate). ‘Caffey’, ‘CL151’, ‘CLXL745’, ‘Jupiter’, ‘LaKast’, ‘Mermentau’, ‘Roy J’, and ‘XL753’ were evaluated in response to applications of benzobicyclon. The highest level of visible injury was observed in LaKast at 7% in 2015. No visible injury was detected among other cultivars either year at 2 weeks after treatment. In 2015 and 2016, no more than a four-day delay to reach 50% heading occurred across all cultivars. Rough rice yield was not affected by any of the post-flood application timings of benzobicyclon. A second study was conducted in 2016 at three locations throughout Arkansas to investigate the tolerance of 19tropical japonica(inbred and hybrid) and twoindicainbred cultivars to a premix containing benzobicyclon at 494 g ai ha-1and halosulfuron at 72 g ai ha-1 applied 1 week after flooding. Thetropical japonicacultivars have excellent crop safety to benzobicyclon while application to theindicacultivars, Rondo and Purple Marker, expressed severe phytotoxicity. Benzobicyclon caused less than a 2 d delay in heading to thejaponicacultivars. Rough rice yield of thetropical japonicacultivars was not affected by benzobicyclon while yields of bothindicacultivars were negatively affected. Benzobicyclon can safely be applied to drill-seededtropical japonicainbred and hybrid cultivars in a post-flood application without concerns for crop injury. Benzobicyclon should not be used onindicacultivars as it will cause severe injury, delayed heading, and yield loss.

Health Care Cost Containment in Large American Cities

1989 ◽  
Vol 18 (1) ◽  
pp. 87-100 ◽  
Author(s):  
Perry Moore
Keyword(s):  
Health Care ◽  
Cost Containment ◽  
Local Governments ◽  
Health Care Cost ◽  
The United States ◽  
Public Agencies ◽  
The Public ◽  
Survey Results ◽  
The Cost ◽  
American Cities

This research provides information about the health care cost containment efforts of local governments and agencies across the United States, particularly in large American cities. Survey results indicate that while the public sector lags behind the private sector, public agencies are beginning to match the cost containment efforts of private employers. While initiation of these efforts represents considerable recent progress, their tangible benefits are not yet apparent.

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