International Journal of Agricultural Research最新文献_第8页

Co-composting of empty fruit bunches and partially treated palm oil mill effluents in pilot scale. 空果束和部分处理过的棕榈油厂废水的中试堆肥。

International Journal of Agricultural Research Pub Date : 2009-02-01 DOI: 10.3923/IJAR.2009.69.78

A. S. Baharuddin, M. Wakisaka, Y. Shirai, S. Abd-Aziz, N. A. Rahman, M. Hassan

{"title":"Co-composting of empty fruit bunches and partially treated palm oil mill effluents in pilot scale.","authors":"A. S. Baharuddin, M. Wakisaka, Y. Shirai, S. Abd-Aziz, N. A. Rahman, M. Hassan","doi":"10.3923/IJAR.2009.69.78","DOIUrl":"https://doi.org/10.3923/IJAR.2009.69.78","url":null,"abstract":"The main objective of this study is to investigate the physicochemical changes of the co-composting Empty Fruit Bunch (EFB) with partially treated palm oil mill effluent (POME) in pilot scale. The partially treated POME from anaerobic pond was sprayed onto the shredded EFB throughout the treatment. The composting materials were turned over one to three times per week for aeration. Temperature and oxygen were monitored at different depths of the composting piles. Parameters such as C, N, pH, nutrients, heavy metals and total bacteria count were also determined. The temperature was increased up to 58.5Â°C at day three of treatment, after that fluctuated between 50 to 62Â°C and then decreased in the latter stage of the process. The pH of the system (7.75-8.10) did not vary significantly during the treatment period while moisture content was reduced from 65-75% to about 60% at the end of the treatment. The initial C/N ratio of 45 was significantly reduced to 12 after 60 days of composting. The final cured compost contained a considerable amount of nutrients (carbon, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur and iron) and trace amounts of manganese, zinc, copper. In addition, very low levels of heavy metals were detected in the compost. The number of bacteria involved in the composting process was decreased at the end of the composting period. The results obtained indicated that pilot scale of co-composting EFB with partially treated POME gave acceptable quality of compost and ease in operation. The compost product may useful in palm oil plantation as fertilizer and soil amendment.","PeriodicalId":177458,"journal":{"name":"International Journal of Agricultural Research","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121349938","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: 147

Effects of calcium and chitosan treatments on controlling anthracnose and postharvest quality of papaya (Carica papaya L.). 钙和壳聚糖处理对番木瓜炭疽病防治及采后品质的影响。

International Journal of Agricultural Research Pub Date : 2009-02-01 DOI: 10.3923/IJAR.2009.53.68

A. Al-Eryani-Raqeeb, T. Mahmud, S. Omar, A. Zaki, A. R. Al-Eryani

{"title":"Effects of calcium and chitosan treatments on controlling anthracnose and postharvest quality of papaya (Carica papaya L.).","authors":"A. Al-Eryani-Raqeeb, T. Mahmud, S. Omar, A. Zaki, A. R. Al-Eryani","doi":"10.3923/IJAR.2009.53.68","DOIUrl":"https://doi.org/10.3923/IJAR.2009.53.68","url":null,"abstract":"This study was conducted to evaluate the in vitro fungicidal effects of calcium and chitosan on Colletotrichum gloeosporioides and to as well determine their effects on storage life and quality of papaya. Potato Dextrose Agar (PDA) incorporated with calcium at different concentrations (1.5, 2.5 or 3.5%) or in combination with chitosan at 0.75% or chitosan alone were used as treatments for in vitro tests. Uncorporated treatments with PDA and untreated fruits as control used on papaya fruits for storage life and quality evolutions. Chitosan had the greatest effect against Colletotrichum gloeosporioides in both in vitro and in disease incidence (%) on papaya fruits compared to calcium treatment and as well as control. Calcium reduced spores germination significantly as calcium concentrations increased from 2.5 to 3.5%, compared to the 1.5% and control treatments. However, it did not show any fungicidal effects on mycelial growth. The combination of 2.5% calcium with chitosan 0.75% completely inhibited spore germinations and significantly inhibited mycelia growth compared to calcium individual treatments and as well as control. Anthracnose disease incidence (%) was significantly controlled (5.6%) using calcium at 2.5% combined with chitosan compared with the other treatments. This demonstrated the best effect on controlling anthracnose disease incidence for papaya fruits. Moreover, this treatment proved able to extend the storage life of papaya fruits up to 33 days of storage life while maintaining valuable attributes of quality.","PeriodicalId":177458,"journal":{"name":"International Journal of Agricultural Research","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128281167","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: 50

Invasion of Chromolaena odorata in the lowveld region of Swaziland and its effect on herbaceous layer productivity. 施瓦济兰低地地区臭毛霉的入侵及其对草本层生产力的影响。

International Journal of Agricultural Research Pub Date : 2008-02-01 DOI: 10.3923/IJAR.2008.98.109

S. Tefera, B. J. Dlamini, A. M. Dlamini

引用次数: 6

Soil Properties, Leaf Nutrient Composition and Yield of Okra (Abelmoschus esculentus (L.) Moench) as Affected by Broiler Litter and NPK 15:15: 15 Fertilizers in Ekiti State, Nigeria 秋葵土壤特性、叶片营养成分及产量Moench)受尼日利亚Ekiti州肉鸡产仔和氮磷钾15:15:15肥料的影响

International Journal of Agricultural Research Pub Date : 2008-02-01 DOI: 10.3923/IJAR.2008.140.147

S. O. Omotoso, O. S. Shittu

引用次数: 6

Appraisal of Natural Resource Database for Alternate Agricultural Land Use at Village Level Under Saline Environment-A Case Study from Sagar Island, India 盐碱化环境下村级农用地交替利用自然资源数据库评价——以印度Sagar岛为例

International Journal of Agricultural Research Pub Date : 2008-02-01 DOI: 10.3923/IJAR.2008.121.130

A. Seal, R. Bera, K. Sah, D. Sarkar, A. K. Chatterjee, P. Bhattacharyya, Kangjoo Kim, Seok-Hwi Kim

引用次数: 0

An Evaluation of Spectroscopic and Loss on Ignition Methods for Estimating Soil Organic Carbon in Zambian Soils 光谱法和燃烧损失法估算赞比亚土壤有机碳的评价

International Journal of Agricultural Research Pub Date : 2007-11-01 DOI: 10.3923/IJAR.2007.965.970

O. Yerokun, .. S.Chikuta, .. D.Mambwe

引用次数: 14

Distribution of Latoia viridissima and Oryctes monoceros in Cross River oil palm estates, Nigeria. 尼日利亚克罗斯河油棕庄园中拉托亚病毒和单角稻的分布。

International Journal of Agricultural Research Pub Date : 2007-10-01 DOI: 10.3923/IJAR.2007.883.887

D. A. Ukeh

引用次数: 3

Evaluation of Austrodanthonia accessions for acid tolerance and growth potential. 南桃属材料的耐酸性和生长潜力评价。

International Journal of Agricultural Research Pub Date : 2007-10-01 DOI: 10.3923/IJAR.2007.849.861

M. Islam, P. Dowling, P. Milham, L. Campbell, B. Jacobs

引用次数: 0

Detection of seed-borne fungi and site of infection by Colletotrichum truncatum in naturally-infected soybean seeds. 自然侵染大豆种子中炭疽菌的种传真菌及侵染部位的检测。

International Journal of Agricultural Research Pub Date : 2007-09-01 DOI: 10.3923/IJAR.2007.812.819

M. Begum, M. Sariah, A. Puteh, M. Z. Abidin

引用次数: 21

Effects of maize intercropping on incidence and severity of leafspot disease (Cercospora arachidicola Hori) and nodulation of groundnut 玉米间作对花生叶斑病发病率和严重程度及结瘤的影响

International Journal of Agricultural Research Pub Date : 2007-05-01 DOI: 10.3923/IJAR.2007.504.507

.. G.O.Ihejirika

{"title":"Effects of maize intercropping on incidence and severity of leafspot disease (Cercospora arachidicola Hori) and nodulation of groundnut","authors":".. G.O.Ihejirika","doi":"10.3923/IJAR.2007.504.507","DOIUrl":"https://doi.org/10.3923/IJAR.2007.504.507","url":null,"abstract":"A two seasons experiment conducted in 1999 and 2000 planting seasons, respectively to determine the effects of maize intercropping and plant density on the incidence and severity of Cercosporo arachidicola Hori and nodulation of groundnut. Investigation revealed that groundnut intercropped with maize was highly significant on incidence and severity of Cercospora arachidicola Hori leafspot disease of groundnut at 0.05 probability level. Intercropping showed a significantly lower leaspot disease severity 0.6.4 and 0.76 and a lower nodulation of 86.4 and 87.0% in 1999 and 2000, respectively in comparison with sole groundnut 0.77 and 0.86 leafspot disease severity and 88.5 and 98% defoliation in 1999 and 2000, respectively. Plant density 250,000 plants ha-1 recorded 0.00 incidence of leafspot disease at 4 weeks of plant age in both seasons, as well as least severity of leafspot disease 0.30 and 0.35 but high nodulation of 14.75 and 13.95 in 1999 and 2000, respectively while 1,000,000 plants ha-1 had highest severity 1.15 and 1.24 but low nodulation 12.63 and 11.05 in 1999 and 2000, respectively. There is also a direct relation on severity of leafspot disease with age of groundnut planted in both seasons. Groundnut intercropped with maize had significantly high nodulation 12.44 and 13.05 when sole groundnut 11.31 and 11.55 in 1999 and 2000, respectively were low","PeriodicalId":177458,"journal":{"name":"International Journal of Agricultural Research","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132820626","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