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13篇 您的检索式:作者名="Sirajul"
    题名 作者 年代 出处 被引量
1木霉(Trichoderma spp.)对三种引起大棚蔬菜病害病原菌的影响显示文摘通过木霉属(Trichoderma) 3菌株与双鸭山蔬菜大棚中的黄瓜枯萎病菌(FusariumoxysporumSchlecht.f.cucumerinum)、黄瓜果腐病菌(PhytophthoracapsiciLeonian)、菜豆叶枯病菌(Cladosporiumsp .)的对峙培养试验,结果表明:绿色木霉1(TrichodermaviridePers.exGray 1)可作为双鸭山蔬菜大棚中的黄瓜枯萎病、黄瓜果腐病、菜豆叶枯病3种病害的生物防治拮抗菌加以利用,该拮抗菌对菜豆叶枯病菌抑制效果最好;绿色木霉2 (Tricho dermaviride 2 )对黄瓜果腐病菌抑制效果最好;而哈茨木霉(TrichodermaharzianumRifai)对以上3种病原菌都有抑制效果,对菜豆叶枯病菌抑制效果最好。从试验结果还可看出,绿色木霉2对黄瓜枯萎病菌和菜豆叶枯病菌的生长有促进作用。宋瑞清 周秀华 Sirajul HASAH 2004菌物研究2004,2,4:7
2Comparative analysis of some selected macronutrients of soil in orange orchard and degraded forests in Chittagong Hill Tracts,Bangladesh显示文摘Status of organic carbon (C), total nitrogen (N), available potassium (K), calcium (Ca) and phosphorus (P) in three different depths (0-5 cm, 5-15 cm and 15?30 cm) on two hill slopes of 35% and 55% in orange orchard cultivated by the Mro tribe of Chittagong Hill Tracts (CHTs) were evaluated and compared with those in degraded bush forests, through digging three profiles in each land use. The content of all the five nutrients was found to be higher in the soil of orange orchard than in the soil of forest. But the variation was not consistent for both the slopes. The content varied depth wise also, having the highest value in surface soil in case of both the land uses on both the slopes. A mean available K content was significantly higher in orange orchard than in forest on 55% slope, while it was lower on 35% slope. Surface soil contained the nutrients of K and Ca with the amount of 0.2905-mg·g^(-1) soil and 3.025-mg·g^(-1)soil respectively in the orchard, while 0.1934-mg·g^(-1) soil and 1.6083-mg·g^(-1) soil were respectively in the forest. Organic carbon and total nitrogen were found more or less similar in surface soil on both the land uses showing a slight difference. Available P was found only in orange orchard, and in forest it was too little in amount to detect by the spectrophotometer. The degraded forests were poor in nutrient content due to high rate of soil erosion, which would be possible to be improved by bringing it under tree cover as proved by the adaptation of orange orchard there.Mohammad Shaheed Hossain Chowdhury Shampa Biswas Md. Abdul Halim S. M. Sirajul Haque Nur Muhammed Masao Koike 2007Journal of Forestry Research2007,18,1:5
3Comparative evaluation of physical properties in soils of orange orchard and bushy forest in chittagong hill tracts, Banglandesh显示文摘对孟加拉国丘陵地带Mro部落经营的桔园与灌木林35%和55%两种坡地土壤物理性质进行了比较与评价。每一块用地内挖掘3个土壤剖面采集不同深度(0-5cm,5-15cm and 15-30cm)的土壤样品,测定土壤水分、有机质含量和土壤密度。最大持水量、田间持水量、干或湿土壤容重和土壤孔隙度的测定仅限于表层土壤。两种坡地桔园3个深度的土壤水分含量均显著高于灌木林地相同深度的土壤水分。桔园在55%坡地内土壤有机质含量低于林地含量值,而在35%坡地内的含量值则高于林地值。两块样地内上述两项测定值均在表层土壤中最高,且随土层深度的增加而降低。与灌木林地比较,桔园地表层土壤最大持水量、孔隙度和3个不同深度的土壤密度均较低。两块用地内不同坡地的表层土田间持水量有所差异,且桔园地干或湿表层土壤容重高于林地内的数值。表5参23。Mohammad Shaheed Hossain Chowdhury Md. Abdul Halim Shampa Biswas S. M. Sirajul Haque Nur Muhammed Masao Koike 2007Journal of Forestry Research2007,18,3:4
4Clear felling and burning effects on soil nitrogen transforming bacteria and actinomycetes population in Chittagong University campus, Bangladesh显示文摘The effect of forests clear felling and associated burning on the population of soil nitrogen transforming bacteria and actinomycetes are reported at three pair sites of Chittagong University campus, Bangladesh in monsoon tropical climate. Clear felled area or burnt site and 15-21 year mixed plantation of native and exotic species, situated side by side on low hill having Typic Dystrochrepts soil was represented at each pair site. At all the three pair sites, clear felled area or burnt site showed very significantly (p≤0.001) lower population of actinomycetes, Rhizobium, Nitrosomonas, Nitrobacter and ammonifying as well as denitrifying bacteria compared to their adjacent mixed plantation. From environmental consideration, this finding has implication in managing natural ecosystem.S.M. Sirajul Haque Rahima Ferdoshi Sohag Miah M. Nural Anwar 2012Journal of Forestry Research2012,23,1:4
5Effects of shifting cultivation on biological and biochemical characteristics of soil microorganisms in Khagrachari hill district, Bangladesh显示文摘We collected soil samples from two representative sites at Aatmile of Khagarachari hill district in Chittagong Hill Tracts. One of the sites was under shifting cultivation and the other an adjacent 13-year old teak plantation. Both sites were in the same physiographic condition and same aspect with parable soil type, which enabled us to measure the effects of shifting cultivation on soil micro-flora. We studied soil physico-chemical properties and the biochemical and biological properties of soil microbes. Moisture and organic matter content as well as fungi and bacterial populations, both in surface and subsurface soils, were significantly(p ≤0.001) lower in shifting cultivated soils compared to soils not under shifting cultivation, i.e. the teak plantation site. The most abundant bacteria in surface(0-10 cm) and sub-surface(10-20 cm) soils under shifting cultivation were Pseudomonas diminuta and Shigella, respectively, while in corresponding soil layers of teak plantation, predominant microbes were Bacillus firmus(0-10 cm) and Xanthomonas(10-20 cm). The microbial population differences cannot be explained by soil texture differences because of the textural similarity in soils from the two sites but could be related to the significantly lower moisture and organic matter contents in soils under shifting cultivation.Sohag Miah S.M. Sirajul Haque Wahida Sumi Mohammad Mosharraf Hossain 2014Journal of Forestry Research2014,25,3:2
6Rural household energy consumption pattern in the disregarded villages of Bangladesh显示文摘Md. Danesh Miah Rashel Rana Mohammad Sirajul Kabir Masao Koike Shalina Akther Man Yong Shin 2009Energy Policy2009,,2:1
7A mesh free interpolation method for the numerical solution of the coupled nonlinear partial differential equations显示文摘Siraj U I Sirajul H Marjan U 2009Engineering Analysis with Boundary Elements2009,33,3:1
8Water quality of Kaptai reservoir in Chittagong Hill Tracts of Bangladesh显示文摘A study was conducted in Kaptai reservoir, one of the largest man-made freshwater lakes of South-east Asia, to determine present status of water quality and its suitability for fishing and other uses. Water samplings were from middle part of the reservoir at 0.2 and 0.8 fractional depths at five different locations from upstream to downstream viz. Burburichara, Maichchari, Subolong, Basanthakum, and Rangamati. Water analyses show that concentrations of NO3-N, K+ and total P, and suspended solid at all the sampling stations were beyond the recommended values for fish culture. Concentrations of Na+, Ca2+, Mg2+, SO42-, Cl-, total dissolved solid (TDS), dissolved oxygen (DO) and chemical oxygen demand (COD) were within the standards for aquaculture. Concentrations of NO3-N, SO42-, K+ and total P showed no definite trend with depths, locations as well as rainy and dry seasons. Water pH, conductivity, Na+ and HCO3- contents were lower in rainy season, and DO and COD higher at almost all the locations in both the depths, compared with dry season. Total solids and concentrations of TDS, DO, COD, Ca2+, Mg2+ and Na+ were higher in upstream and decreased gradually towards downstream in the reservoir. Concentrations of DO and Ca2+ and pH were higher and Mg2+ less at 0.2-fractional depth than those at 0.8-fractional depth at almost all the locations. The reservoir is in mesotrophic condition containing high concentration of NO3-N and total P, in alarming status with the presence of excessive suspended solids from urban pollution around the town. It is necessary to adopt measures for protecting water quality in the reservoir due to such deteriorations.Shyamal Karmakar S. M. Sirajul Haque M. Mozaffar Hossain M. Shafiq 2011Journal of Forestry Research2011,22,1:1
9A mesh-free numerical method for solution of the family ofKuramoto-Sivashinsky equations显示文摘Marjan Uddin Sirajul Haq Siraj-ul-lalam 2009Applied Mathe-matics and Computation2009,212,:1
10Coastal afforestation effects on soil properties at Hatiya in Bangladesh显示文摘探索研究在孟加拉国在 Noakhali 区域下面在 Hatiya 在字符 Rehania 和字符 Nurul 回教在细长的字符和字符 Piya 和他们的邻近的贫瘠陆地的沿海的种植园(17 岁、 17 岁的 Sonneratia apetala ) 被进行在土壤性质上决定造林效果。在土壤深度 0 10,越过三块不同陆地的 10 30 和 30 40 厘米剥去 viz。在17岁、17岁的 keora ( Sonneratia apetala )的内陆,中间和海方面种植园,土壤潮湿,粒子密度,有机物和 C ,全部的 N , pH ,可得到的 P , K , Na , Ca 和 Mg 是显著地( p≤0.05 , p≤0.01 , p≤0.001 )更高,并且( p≤0.001 )土壤咸度显著地在他们的邻近的贫瘠陆地比那降低。在在内陆的字符细长的种植园的表面土壤的土壤潮湿,粒子密度,有机物和 C ,全部的 N , pH ,土壤咸度,可得到的 P , K , Na , Ca 和 Mg 是31.09%, 2.24 g ·c m −3,2.41%,4.14%,0.58%, 7.07 , 0.09 dS ·c m −1, 28.06 mg ·L −1, 0.50 , mg ·L −1 11.5 mg ·L −1, 3.30 mg ·L −1和 2.7 mmol ·k g −1,分别地。他们为在邻近的字符 Rehania 贫瘠土地的一样的深度和陆地位置的相应的值是16.69%, 1.25g ·c m −3,0.43%,0.74%,0.25%, 6.57 , 0.13 dS ·c m −1, 13.07mg ·L −1, 0.30 mg ·L −1, 1.4 mg ·L −1, 0.30 mmol ·k g −1和 0.50 mg ·L −1,分别地。土壤潮湿,粒子密度,有机物和 C,全部的 N, pH,可得到的 P, K 和 Ca 减少了,并且土壤咸度,可得到的 Na 和 Mg 在种植园向海方面从内陆增加了。尽管土壤质地没在在种植园和邻近的贫瘠土地之间的大多数土壤深度不同,沙粒子的比例是(p≤.01 ) 显著地降低并且淤泥粒子显著地(p≤0.001 ) 在在他们的邻近的贫瘠陆地的比那高的种植园。在学习,所有参数的评估也为其它块陆地被做。K. M. Shaifullah S. M. Sirajul Haque M. Sujauddin Shyamal Karmakar 2009Journal of Forestry Research2009,20,3:1
11Organic matter accumulation in hill forests of Chittagong region, Bangladesh显示文摘在每个分解阶段的森林土壤性质上的崽秋天和它的效果在热带季风被调查三种植园(7 年的相思树种植园, 15 年的相思树种植园和 18 年的混合种植园) 和从孟加拉国的 Chittagong 多山的区域的一个自然森林(Sitapahar 森林) 的气候的条件。结果证明有机物的全部的累积与种植园年龄增加了,与年度累积率的减少伴随。在一样的植被类型以内,有山上的显著地改变的腐植质(p≤0.05 ) 的新鲜、部分分解的垃圾的器官的累积放,在底部斜坡上是最高的并且在森林里向山顶逐渐地减少。在土壤有机物的累积的反向的趋势在 15 年的相思树 auriculiformis 种植园,燃料木头在哪儿收集了被显示出。在7年、15年的相思树和18年的混合宽广离开的种植园,全部的有机物生产由组成评价新鲜,在土壤的部分并且完全分解的垃圾以及合并有机物是 2554.31 , 705.79 和 1028.01 kg ·h −1·a−1,分别地,并且从新鲜垃圾的相应贡献是 38.23 , 19.40 和 30.48 kg ·h −1·a−1,分别地。在三种植园和自然森林,在一般水准上,新鲜垃圾组成了 32.45% ,部分与腐植质 13.50% 分解了垃圾并且合并了在有 0.90 厘米的吝啬的崽厚度的土壤 54.56% 全部的有机物生产的有机物。土壤酸味随有机物的分解舞台的增加增加了。S. M. Sirajul Haque Nirmal Chandra Karmakar 2009Journal of Forestry Research2009,20,3:1
12Deforestation effects on biological and other important soil properties in an upland watershed of Bangladesh显示文摘Deforestation occurs at an alarming rate in upland watersheds of Bangladesh and has many detrimental effects on the environment. This study reports the effects of deforestation on soil biological properties along with some important physicochemical parameters of a southern upland watershed in Bangladesh. Soils were sampled at 4 paired sites, each pair representing a deforested site and a forested site, and having similar topographical characteristics. Significantly fewer(p≤0.001) fungi and bacteria, and lower microbial respiration, active microbial biomass, metabolic and microbial quotients were found in soils of the deforested sites. Soil physical properties such as moisture content, water holding capacity, and chemical properties such as organic matter, total N, available P and EC were also lower in deforested soils. Bulk density and pH were significantly higher in deforested soils. Available Ca and Mg were inconsistent between the two land uses at all the paired sites. Reduced abundance and biomass of soil mesofauna were recorded in deforested soils. However, soil anecic species were more abundant in deforested soils than epigeic and endogeic species, which were more abundant in forested soils than on deforested sites.S.M. Sirajul Haque Sanatan Das Gupta Sohag Miah 2014Journal of Forestry Research2014,25,4:0
13Quality Assessment of Different Industrial Effluents for Irrigation in Agriculture显示文摘M Rafiqul Islam G K M Mustafizur Rahman A J M Sirajul Karim M Giasuddin Miah M Abu Saleque 2015Journal of Earth Science and Engineering2015,5,2:0
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