The Agriculturists最新文献_第7页

Selection of Core Collection from Jesso-Balam Rice ( Oryza sativa L.) Accessions Using Quantitative, Qualitative and Molecular Characters-A Review 稻(Oryza sativa L.)核心种质的选择应用定量、定性和分子特征的文献综述

The Agriculturists Pub Date : 2017-08-04 DOI: 10.3329/AGRIC.V15I1.33440

Ahmed, K. Iftekharuddaula

{"title":"Selection of Core Collection from Jesso-Balam Rice ( Oryza sativa L.) Accessions Using Quantitative, Qualitative and Molecular Characters-A Review","authors":"Ahmed, K. Iftekharuddaula","doi":"10.3329/AGRIC.V15I1.33440","DOIUrl":"https://doi.org/10.3329/AGRIC.V15I1.33440","url":null,"abstract":"Genetic improvement of rice ( Oryza sativa L.) for yield is important for increasing demand of the growing population and the changing climate of the world. Recent studies showed that backcrossing twice using modern varieties as receptor and mini core collection as doner, most of the undesirable traits could be improved remarkably and in other words its maximum allele diversity could be brought back into rice fields. Core collection is defined as a subset chosen to represent the most genetic diversity of an initial collection with a minimum of redundancies. The objective of the present study was to review the selection of core collection of Jesso-Balam group of rice genotypes through quantitative, qualitative and molecular characters. Earlier, the same germplasms were characterized for agro-morphological, physico-chemical and molecular characters and grouped into different clusters by different methods at Bangladesh Rice Research Institute during 2009-12. Finally, the core collection was selected by reviewing the above characterized data and using the hierarchical cluster analysis. Moreover, the selection processes of core collection were improved by applying composite evaluation methods; such as agro-morphological traits, biochemical characters and so on, through sampling strategies based on genotypic values, predicted genotypic value, comparing different genetic distances, cluster methods and sampling strategies methods, molecular characterization or SSR marker base data. As a result, the selected core germplasm of Jesso-Balam rice accessions were JBPL1, JBPL8, JBPL9, JBPL10, JBPL13, JBPL15, JBPL16, JBPL17, JBPL19, JBPL20, JBPL21, JBPL23, JBPL25 and JBPL26. In conclusion, the core collection need to be considered as the working collection of Jesso-Balam rice genotypes for their easy and safe conservation and effective utilization in Gene bank. The Agriculturists 2017; 15(1) 170-181","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133206284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Evaluation of Aus Rice ( Oryza sativa L.) Production in Less Irrigated Situation in Northern Region of Bangladesh 水稻(Oryza sativa L.)的评价孟加拉国北部地区少灌溉情况下的生产

The Agriculturists Pub Date : 2017-08-04 DOI: 10.3329/AGRIC.V15I1.33434

M. Islam, A. Hossain, Miah, S. Shahriar, M. Mamun

{"title":"Evaluation of Aus Rice ( Oryza sativa L.) Production in Less Irrigated Situation in Northern Region of Bangladesh","authors":"M. Islam, A. Hossain, Miah, S. Shahriar, M. Mamun","doi":"10.3329/AGRIC.V15I1.33434","DOIUrl":"https://doi.org/10.3329/AGRIC.V15I1.33434","url":null,"abstract":"Twenty one demonstrations and two validation trials were carried out at the farmers field in the northern region of Bangladesh during 2014 using Aus rice: variety BRRI dhan48 to enhance Aus (pre-monsoon) rice cultivation. Grain yields of 3.5 to 6.5 t ha -1 were obtained from demonstrations plots conducted in different farmers field. The validation trial was conducted in the farmers field at Mithapukur and Nilphamari Sadar Upazillas using BRRI dhan28 and BRRI dhan48 as Braus (rice grown between Boro and Aus season) after harvesting potato. Grain yield of about 5.0 t ha -1 was obtained from the rice variety BRRI dhan28, while 6.6 t ha -1 was obtained from BRRI dhan48. BRRI dhan48, due to its shorter growth duration (100-105 days) required 2-3 less irrigations. About 28-36% less irrigation water was required during dry season when BRRI dhan48 was used as Braus instead of BRRI dhan28 as a Boro crop. About 20 to 60% higher grain yield was observed in different farmers field with BRRI dhan48 over BRRI dhan28, which indicated that BRRI dhan48 is a potential rice variety during Aus or Braus season. BRRI dhan48 can be cultivated after Boro harvest or as Braus after potato harvest. The variety could also decrease the pressure on ground water utilization for rice cultivation during dry season. The Agriculturists 2017; 15(1) 110-115","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121024234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Irrigation Scheduling of Rice ( Oryza sativa L.) Using CROPWAT Model in the Western Region of Bangladesh 水稻灌溉调度研究CROPWAT模式在孟加拉国西部地区的应用

The Agriculturists Pub Date : 2017-08-04 DOI: 10.3329/AGRIC.V15I1.33425

M. Hossain, S. Yesmin, M. Maniruzzaman, J. Biswas

{"title":"Irrigation Scheduling of Rice ( Oryza sativa L.) Using CROPWAT Model in the Western Region of Bangladesh","authors":"M. Hossain, S. Yesmin, M. Maniruzzaman, J. Biswas","doi":"10.3329/AGRIC.V15I1.33425","DOIUrl":"https://doi.org/10.3329/AGRIC.V15I1.33425","url":null,"abstract":"Understanding of crop water requirement is essential for irrigation scheduling and selection of cropping pattern in any particular area. A study was conducted to estimate irrigation requirement and made irrigation scheduling of T. Aman (wet season) and Boro (dry season irrigated) rice in the western region of Bangladesh using CROPWAT model. Historical climate data from three weather stations in the region along with soil and crop data were used as input to FAO Penman-Monteith method to estimate reference evapotranspiration (ETo). Effective rainfall was calculated using USDA soil conservation method. The model estimated1408 mm annual ETo in the study area, of which the highest amounts of 175 mm was in April and the lowest (70 mm) in December. The average annual rainfall was 1592 mm of which 986 mm was effective for plant growth and development. The model estimated ETc of BRRI dhan49, which was 473 to 458 mm, depending on its transplanting dates from 15 July to 15 August. Rice transplanted on 15 July required no irrigation, whereas three supplemental irrigations amounting 279 mm were required for transplanting on 15 August. The CROPWAT model estimated seasonal irrigation water requirement of 1212 mm (12 spilt applications) for BRRIdhan28 transplanted on 15 January. This model has also a potentiality to make irrigation scheduling of other crops. The Agriculturists 2017; 15(1) 19-27","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126515061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

Leaf Blight Disease caused by Pseudomonas syringae pv. syringae in the Nurseries of Litchi ( Litchi chinensis Sonn.) and its Management 丁香假单胞菌引起的叶枯病。荔枝苗圃中的丁香及其管理

The Agriculturists Pub Date : 2017-08-04 DOI: 10.3329/AGRIC.V15I1.33424

Mahmood Khan, I. Hossain, Mukhtar Ahmad, M. Chowdhury

{"title":"Leaf Blight Disease caused by Pseudomonas syringae pv. syringae in the Nurseries of Litchi ( Litchi chinensis Sonn.) and its Management","authors":"Mahmood Khan, I. Hossain, Mukhtar Ahmad, M. Chowdhury","doi":"10.3329/AGRIC.V15I1.33424","DOIUrl":"https://doi.org/10.3329/AGRIC.V15I1.33424","url":null,"abstract":"Leaf blight of seven varieties of litchi caused by Pseudomonas syringae pv. syringae was surveyed in the nurseries of major litchi growing areas in Bangladesh viz. Rajshahi, Dinajpur, Rangpur, Mymensingh and Khagrachari. The mean level of incidence and severity were 8.58 and 7.88% in Rajshahi, 9.88 and 8.88% in Dinajpur, 8.44 and 7.76% in Rangpur, 6.50 and 6.18% in Mymensingh and 9.00 and 7.98% in Khagrachari. Incidence and severity of bacterial leaf blight disease of litchi varied significantly depending on weather conditions. Correlation studies revealed that bacterial leaf blight disease of litchi seedlings were positively correlated with temperature, rainfall and relative humidity, where temperature and rainfall was the major factor to the variations of both incidence and severity. Antibiotic sensitivity test revealed that among fifteen isolates, most of the isolates of P. syringae pv. syringae collected from litchi were sensitive to Gentamycin and Erythromycin. Under net house condition, six different treatments (i) Gentamycin @ 0.05%, (ii) Erythromycin @ 0.05%, (iii) Doxycycline @ 0.05%,(iv) Copper sulphate @ 0.05%, (v) BAU-Biofungicide @ 2% and (vi) Control were used for controlling bacterial leaf blight of litchi (Variety: China-3). BAU-Biofungicide was found to be superior in controlling bacterial leaf blight of litchi that reduced 33.64% disease incidence and 60.77 % disease severity in 2010-11 and 63.76% disease incidence and 61.40 % disease severity in 2011-12 over control when applied as foliar spray @ 2% followed by Copper sulphate (0.05%) and Erythromycin (0.05%). The Agriculturists 2017; 15(1) 10-18","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116997227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Climatic Variability and Wet Season Rice ( Oryza sativa L.) Production in North-West Bangladesh 气候变化与旱季水稻(Oryza sativa L.)孟加拉国西北部的生产

The Agriculturists Pub Date : 2017-08-04 DOI: 10.3329/AGRIC.V15I1.33430

J. Biswas, M. Hossain, A. Choudhury, N. Kalra, M. Maniruzzaman

引用次数: 2

Effect of Nitrogen, Phosphorus and Potassium Fertilizers on Yield and Yield Attributes of Marigold ( Tagetes patula L.) 氮、磷、钾肥对万寿菊产量及产量性状的影响

The Agriculturists Pub Date : 2017-08-04 DOI: 10.3329/AGRIC.V15I1.33433

R. Ahmed, M. Hussain, S. Ahmed, Karim, M. Siddiky

{"title":"Effect of Nitrogen, Phosphorus and Potassium Fertilizers on Yield and Yield Attributes of Marigold ( Tagetes patula L.)","authors":"R. Ahmed, M. Hussain, S. Ahmed, Karim, M. Siddiky","doi":"10.3329/AGRIC.V15I1.33433","DOIUrl":"https://doi.org/10.3329/AGRIC.V15I1.33433","url":null,"abstract":"An experiment was conducted at the research field of Horticulture Research Centre, BARI, Gazipur during Rabi season of 2012-13 to 2014-15 to evaluate the yield and yield attributes of Marigold (var. BARI Marigold-1) to different doses of N, P and K fertilizers and to find out the optimum and economic doses of NPK for maximizing flower yield. Eleven treatments as T 1 , T 2 , T 3, \u0085\u0085, T 10 and T 11 comprising with four levels of fertilizer nutrients each of N (0, 60, 90 and 120 kg ha -1 ), P (0, 30, 40 and 50 kg ha -1 ) and K (0, 60, 90 and 120 kg ha -1 ) along with a blanket dose of 2 kg B and 4 kg Zn ha -1 . The experiment was conducted assigning the treatments in a randomized complete block design with three replications. Flower yield and yield attributes of marigold significantly increased with NPK fertilizer for all three years. The significantly highest flower yield (22.25, 27.38 and 25.15 ton ha -1 ) was obtained from T 3 treatment applying the nutrients N 90 P 40 K 90 kg ha -1 along with blanket dose of 2 Kg B and 4 kg Zn ha -1 for the years 2012-13, 2013-14 and 2014-15, respectively which was statistically identical with T 4 treatment (N 120 P 40 K 90 kg ha -1 ) for the year 2012-13, but significantly different from all other treatments for the years 2013-14 and 2014-15, respectively. Flower yields were increased in T 3 treatment (N 90 P 40 K 90 kg ha -1 ) by 81.34, 62.53 and 49.53%; 146.00, 119.39 and 108.84% and 121.20, 92.13 and 84.11% over their control in respect to the years 2012-13, 2013-14 and 2014-15. The highest benefit-cost ratio 7.14 was obtained from T 3 (N 90 P 40 K 90 kg ha -1 ) followed by T 4 (6.53) treatment. From the quadratic regression equation averaging three years data the optimum and economic doses 103.75 and 102.44 kg N; 36.67 and 36.31 kg P and 90.10 and 88.43 kg K, respectively were found which could be recommended for marigold production in Grey Terrace Soil of Joydebpur under AEZ 28. The Agriculturists 2017; 15(1) 101-109","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132662835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Production and Price Relationship of Ginger ( Zingiber officinale ) in Bangladesh: A Distributed Lag Model 孟加拉国生姜生产与价格关系:一个分布滞后模型

The Agriculturists Pub Date : 2017-08-04 DOI: 10.3329/AGRIC.V15I1.33423

M. K. Hasan, M. E. Haque, M. Rabbani

{"title":"Production and Price Relationship of Ginger ( Zingiber officinale ) in Bangladesh: A Distributed Lag Model","authors":"M. K. Hasan, M. E. Haque, M. Rabbani","doi":"10.3329/AGRIC.V15I1.33423","DOIUrl":"https://doi.org/10.3329/AGRIC.V15I1.33423","url":null,"abstract":"The study aimed at analyzing the fluctuation, and production-price relationship of ginger in Bangladesh. Nineteen years (1975 to 2013) time series data of area, production and prices of ginger, collected from Bangladesh Bureau of Statistics were used to analyze the simplest method for fluctuation, and the Koyck model of distributed lag. The extent of annual price fluctuation of ginger ranged between -50 to 63 percent, while the fluctuation of area, production and yield ranged between-5 to 13, -17 to 22 and -20 to 11 percent, respectively. The study revealed that ginger production in Bangladesh had been influenced by the average price lag value formed in the market. The most striking result of the study was that the time required to get an effect on ginger production for the changes of ginger prices in Bangladesh was 19.83 years. This result shows that the farmers are very enthusiastic for growing ginger, the widely grown major spice crop. The correlation/regression coefficients indicated that the changes in lag values of the prices had a positive influence on production. It may be recommended that to keep the ginger price fluctuation under control, sustainable ginger farming and establishment of an efficient marketing organization is necessary. The Agriculturists 2017; 15(1) 01-09","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132208264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of Tillage Practices and Rice Straw Management on Soil Environment and Carbon Dioxide Emission 耕作方式和秸秆管理对土壤环境和二氧化碳排放的影响

The Agriculturists Pub Date : 2017-08-04 DOI: 10.3329/AGRIC.V15I1.33436

M. Rahman, J. Biswas, M. Maniruzzaman, A. Choudhury, F. Ahmed

{"title":"Effect of Tillage Practices and Rice Straw Management on Soil Environment and Carbon Dioxide Emission","authors":"M. Rahman, J. Biswas, M. Maniruzzaman, A. Choudhury, F. Ahmed","doi":"10.3329/AGRIC.V15I1.33436","DOIUrl":"https://doi.org/10.3329/AGRIC.V15I1.33436","url":null,"abstract":"Carbon (C) inputs and tillage intensity impinge on C degradation and thus CO 2 emission and soil properties get influenced. Information on CO 2 emission and soil properties under different tillage practices and straw application in rice based cropping system in Bangladesh is lacking. The effects of rice straw and tillage operations on CO 2 emission and soil properties were quantified in four consecutive seasons of transplanted Aman and Boro rice grown under two tillage operations (minimum and traditional) and three levels of rice straw (control, incorporation and mulch) during 2010 to 2012. Irrespective of tillage practices, CO 2 emission peak reached after 3-4 weeks of straw application. Carbon dioxide emission ranged from 26 to 59 kg ha -1 day -1 under minimum tillage and 25 to 96 kg ha -1 day -1 under traditional tillage. Minimum tillage accumulated more C in soil, which could be attributed to lower rates of emission and straw degradation. Carbon degradation rate constants, k were 0.000300 and 0.000394 (day -1 ) under minimum and traditional tillage, respectively. Small increment in soil C might help reducing CO 2 in the atmosphere. Mineralization of straw increased nutrient contents and thereby improved the soil fertility and availability to the crops for nutrients uptake. Traditional tillage significantly reduced soil bulk density and increased field capacity of the soil, whereas in addition, rice straw application furthermore increased permanent wilting point and available water content in the soil. The present study may help in identifying suitable tillage and residue management options in reducing CO 2 emission from rice fields. The Agriculturists 2017; 15(1) 127-142","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"5 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128732846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Performance Evaluation of BRRI Power Weeder for Low Land Rice ( Oryza sativ L.) Cultivation BRRI型动力除草机在低地水稻上的性能评价培养

The Agriculturists Pub Date : 2017-08-04 DOI: 10.3329/AGRIC.V15I1.33427

A. Islam, M. Islam, M. Islam, A. Rahman, M. Rahman

{"title":"Performance Evaluation of BRRI Power Weeder for Low Land Rice ( Oryza sativ L.) Cultivation","authors":"A. Islam, M. Islam, M. Islam, A. Rahman, M. Rahman","doi":"10.3329/AGRIC.V15I1.33427","DOIUrl":"https://doi.org/10.3329/AGRIC.V15I1.33427","url":null,"abstract":"Mechanical intervention in crop production is increasing rapidly in Bangladesh. Researchers are finding ways to manage weeds in rice field using suitable mechanical devices instead of conventional hand weeding. A study was conducted to evaluate the field performance of BRRI (Bangladesh Rice Research Institute) power weeder compared to BRRI weeder and hand weeding in the farmers field at Rashidpur in Mithapukur upazila under Rangpur district during boro season of 2014-15. Three treatments: T 1 = BRRI weeder (BW), T 2 = BRRI power weeder (BPW) and T 3 = Hand weeding (HW) were used in the experiment. The experiment was carried out in a randomized complete block design (RCBD) and replicated in four farmers plots. Rice variety BRRI dhan28 was selected for the experiment. The effective field capacity of BW and BPW was found to be 0.06 and 0.09 ha hr -1 , respectively. The weeding efficiency was the highest in HW (92%), followed by BPW (78%) and BW (73%). It was found that BW damaged the lowest number of plants (9%) compared to BPW (11%) during weeding operation, although the damaged plants recovered after a few days. BW and BPW reduced 74 and 85% of labor requirement in weeding operation compared to HW. The highest weeding cost was involved in HW (Tk. 4287 ha -1 ) compared to BW (Tk. 1103 ha -1 ) and BPW (Tk. 950ha -1 ). Weed control methods exerted insignificant effect on grain yield. BRRI power weeder and BRRI weeder reduced weeding cost, enhanced weed control and improved the labor efficiency without sacrificing grain yield. The highest BCR was obtained in BPW (1.22) followed by BW (1.16) and HW (1.11). BRRI power weeder and BRRI weeder appeared to be economic, easy and also environmentally safe weed control device in low land rice cultivation. The Agriculturists 2017; 15(1) 40-48","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133894720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Effect of N, P and K fertilizer on the flower yield of Chrysanthemum N、P、K肥对菊花花产量的影响

The Agriculturists Pub Date : 2017-08-04 DOI: 10.3329/AGRIC.V15I1.33429

R. Ahmed, M. Hussain, S. Ahmed, Karim, M. Siddiky

{"title":"Effect of N, P and K fertilizer on the flower yield of Chrysanthemum","authors":"R. Ahmed, M. Hussain, S. Ahmed, Karim, M. Siddiky","doi":"10.3329/AGRIC.V15I1.33429","DOIUrl":"https://doi.org/10.3329/AGRIC.V15I1.33429","url":null,"abstract":"An experiment was conducted at the research field of Horticulture Research Centre, BARI, Gazipur during Rabi season of 2012-13 to 2014-15 to evaluate the response of different doses of N, P and K on the yield and yield attributes of chrysanthemum (var. BARI Chrysanthemum-1) and to find out the optimum and economic doses of NPK for maximizing yield of chrysanthemum. Treatments comprising four levels each of N (0, 100, 150 and 200 kg ha -1 ), P (0, 50, 75 and 100 kg ha -1 ) and K (0, 90, 135 and 180 kg ha -1 ) along with blanket dose of 2 kg B and 4 kg Zn ha -1 were used. The treatments were assigned in a randomized complete block design with three replications. The combined effect of NPK significantly increased yield and yield attributes of chrysanthemum for each of the yearly experiments as well as the average of three years results. Significantly, the highest flower yield (12.45, 11.47 and 11.96 t/ha) was obtained with the application of N 150 P 75 K 135 kg ha -1 (T 3 ) along with blanket dose of 2 kg B and 4 kg Zn ha -1 for the years of 2012-13, 2013-14 and 2014-15, respectively and it was statistically identical with T 4 (N 200 P 75 K 135 kg ha -1 ) treatment. Application of 150 kg N, 75 kg P and 135 kg K increased yield by 52.76, 42.29 and 36.51%, 152.08, 126.23 and 99.13% and 88.35, 51.30 and 60.75%, respectively, over their control in respect to the years. The highest benefit-cost ratio 5.54 followed by 5.14 was obtained from T 3 (N 150 P 75 K 135 kg ha -1 ) followed by T 4 treatment, respectively. From the quadratic regression equation averaging three years data the optimum and economic doses 155 and 151.8 kg N, 79.3 and 77.68 kg P and 118.75 and 115.7 kg K, respectively were found which could be recommended for chrysanthemum production in Grey Terrace Soil of Joydebpur under AEZ 28. The Agriculturists 2017; 15(1) 58-67","PeriodicalId":322702,"journal":{"name":"The Agriculturists","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115418246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8