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排序方式: 共有49条查询结果,搜索用时 24 毫秒
1.
以生长势一致的温克提子为试材,研究蚯蚓粪、牛粪和常规施肥3种处理对土壤理化性质及温克提子果实品质的影响。结果表明:蚯蚓粪处理的温克提子正造果和二造果的产量、百粒重、横径、纵径、总糖、糖酸比、可溶性固形物和Vc含量均高于牛粪和常规施肥处理,而可滴定酸含量均低于牛粪和常规施肥处理。二造果的百粒重、横径、纵径、总糖、糖酸比、可溶性固形物和Vc含量均低于正造果,二造果的可滴定酸含量高于正造果。  相似文献   
2.
Abstract

The aim of this investigation was to determine the effect of vermicompost (V) and phosphate rock (PR) on blackberry (Rubus fruticosus L. agg.) plants inoculated with Glomus mosseae (Nicol. & Gerd.) Gerdemann & Trappe (AMF). Plant growth parameters, total phenol compounds and total flavonoids were evaluated on leaves. Anthocyanin contents, soluble solids (SS), pH, titratable acidity (TA) and SS/TA ratio was evaluated in blackberries fruits. Blackberry plants were obtained from cuttings from field plants, which were distributed in soil according to a randomized complete block design with three repetitions. Treatments were vermicompost (10?g plant?1), phosphate rock (1?g plant?1), Glomus mosseae (AMF), (1?g plant?1), PR + AMF, V + PR, V +AMF, V + PR+ AMF and control without any amended. Plant height and stem diameter were measured five months after treatments, while total phenols and total flavonoids in leaves were evaluated eight months later. Anthocyanins, SS, pH, and TA were determined in blackberry fruits ten months after. Plant height was not statistically affected (p≤0.05), although total phenol compounds were higher (21.1?mg g?1 dry plant) in the V+PR+AMF treatment, whereas the V + AMF treatment produced more dry plant total flavonoids (1.4?mg g?1), compared with control plants. Blackberries produced with the vermicompost treatment had more anthocyanins (9.54?mg g?1) than control plants. Soluble solids, pH and titratable acidity were not statistically (p≤0.05) affected by any treatment.  相似文献   
3.
The use of vermicompost as a biological fertilizer under salinity stress conditions was tested in this research. Accordingly, the seeds of Medicago rigidula were grown in the greenhouse. The experiment was performed based on factorial arrangement in a completely randomized design using 5 replications. Application rates of vermicompost were 0, 10, 20 and 30%. Salinity stress was conducted in three levels (0, 50 and 100 mM sodium chloride (NaCl)). The highest and the lowest values of the plant survival capacity (%), shoot dry weight (g), leaf relative water content (LRWC) (%), total chlorophyll content (%), leaf area (cm2), total nitrogen content (TNC) (%) and potassium (K) content (%) of the plant tissues were found in VC4 × SL1 and VC1 × SL3 treatments, respectively. Whereas, the maximum and minimum values of root dry weight and root:shoot ratio were seen in VC1 × SL3 and VC4 × SL1 treatments, respectively.  相似文献   
4.
蚯蚓粪基质黄瓜、西瓜穴盘苗耐热性研究   总被引:8,自引:1,他引:7  
为深入了解蚯蚓粪基质对瓜类蔬菜穴盘苗耐热性的影响,以常规草炭系基质为参比,测定了黄瓜、西瓜穴盘苗叶片叶绿素含量、抗氧化酶活性等生理生化指标。结果表明:蚯蚓粪基质穴盘苗与对照穴盘苗在高温胁迫下叶片叶绿素含量均降低,蚯蚓粪基质穴盘苗叶绿素a,b及总量仍显著高于对照(n=3,p<0.05)。蚯蚓粪基质穴盘苗在高温胁迫下叶片SOD,CAT活性增强,与此相反,对照SOD,POD,CAT活性均减弱;高温胁迫下对照穴盘苗叶片电解质渗出率和MDA含量增加幅度较大,分别比蚯蚓粪基质穴盘苗提高了4.47%~102.31%和33.69%~47.75%。说明蚯蚓粪基质黄瓜、西瓜穴盘苗具有较强的耐热性。  相似文献   
5.
进行了两茬蚯蚓粪田间肥力试验。结果表明,第二茬结束时,与试前相比,土壤有机质与全N 全P含量,单施蚯蚓粪分别增加78.7%、47.9%、40.8%,施蚯蚓粪 化肥分别增加38.4%、21.9%、 28.2%;三大微生物总量,单施蚯蚓粪、施蚯蚓粪 化肥分别增加108.2%、51.8%。施用蚯蚓粪能增加土 壤速效养分含量,促进叶面积增长与干物质积累。一、二茬结束时,与不施肥相比,单施蚯蚓粪增产 45.5%、77.5%,施蚯蚓粪 无机肥增产76.1%、103.9%,均达极显著水平。施用蚯蚓粪可改善甘蓝品质, 降低甘蓝硝酸盐含量,提高维生素C含量。  相似文献   
6.
Commercial potting media often contain substantial amounts of peat that was mined from endangered bog and fen ecosystems. The main objectives of this study were to assess (1) whether the amendment of 0, 20, 40, 60, 80 and 100% (v/v) of vermicompost (VC) to a fertilized commercial peat potting substrate has effects on the emergence, growth and biomass allocation of tomato seedlings (Lycopersicon esculentum Mill.) under greenhouse conditions, (2) whether possible impacts on seedlings can affect tomato yields and fruit quality even when transplanted into equally fertilized field soil, and (3) whether effects are consistent among different tomato varieties. Amended VC was produced in a windrow system of food and cotton waste mainly by earthworms Eisenia fetida Sav. Vermicompost amendments significantly influenced, specifically for each tomato variety, emergence and elongation of seedlings. Biomass allocation (root:shoot ratio) was affected by VC amendments for two varieties in seedling stage and one field-grown tomato variety. Marketable and total yields of field tomatoes were not affected by VC amendments used for seedling husbandry. However, morphological (circumference, dry matter content, peel firmness) and chemical fruit parameters (contents of C, N, P, K, Ca, Mg, l-ascorbic acid, glucose, fructose) were significantly affected by VC amendments in seedling substrates; these effects again were specific for each tomato variety. Overall, vermicompost could be an environmentally friendly substitute for peat in potting media with similar or beneficial effects on seedling performance and fruit quality. However, at least for tomatoes, variety-specific responses should be considered when giving recommendations on the optimum proportion of vermicompost amendment to horticultural potting substrate.  相似文献   
7.
蚯蚓粪基质在茄子穴盘育苗中的应用   总被引:4,自引:0,他引:4  
以蚯蚓粪为主要原料配合不同体积比的蛭石作为穴盘育苗基质,研究了复合基质对茄子种子出苗率及幼苗生长发育的影响。结果表明,与草炭对比,蚯蚓粪具有容重较大,孔隙度和持水力较小,高P、K含量和低N含量等特性;2∶1(V∶V)蚯蚓粪复合基质育苗效果最佳,可增加茄子种子出苗率,提高幼苗质量,与对照相比,株高、茎粗、根体积、全株干重、壮苗指数分别增加了31.3%、20.7%、60.1%、80.3%、62.5%,差异达显著水平。  相似文献   
8.
ABSTRACT

The housefly larvae (Musca domestica) vermireactor is capable of highly efficient waste reduction for swine manure management; however, effectiveness of larvae-vermicompost land utilization and the associated impact on soil environment are poorly understood. This study, which integrated incubation pot experiments and field plot tests on a chrysanthemum (Chrysanthemum morifolium) farm, was designed to investigate soil biochemical and microbial functions in response to inorganic fertilizer (NPK), vermicompost (VC) application, and/or combination of inorganic fertilizer and vermicompost (I + V). Pot experiments indicated that available soil nitrogen (N), phosphorus (P), and potassium (K) were significantly higher (21%-43%, 206%-306%, and 35%-36%, respectively) with VC treatment compared to NPK treatment; meanwhile, soil organic carbon (C), N and P mineralization was increased by 46%-57%, 53%-70%, and 30%-113%, respectively. Vermicompost application increased soil highly labile organic C by 19% to 42%. Vermicompost also enhanced soil enzymatic activities: 37%-68% for dehydrogenase, 22%-107% for urease, and 3.4%-56% for phosphatases, but activities of soil β-1,4-glucosidase and β-1,4-N-acetylglucosaminidase were reduced by 17%-53% and 24%-42%, respectively. Compared to pot experiment, continuous land application of vermicompost overwhelmingly caused soil nutrient accumulation, increased soil C stock and microbial biomass, enhanced soil mineralization, and improved C-, N-, and P-related enzymatic activities. Co-inertia analysis indicated that soil fertility indices positively correlated with most microbiological indices. This work reveals VC as a new biofertilizer for crop production and highlights its merit on soil health improvement.  相似文献   
9.
This study evaluates the effect of two different kinds of liquid organic fertilizers and a mineral fertilizer on microbial populations (Eubacteria and Archaea) living in the tomato rhizosphere. The organic fertilizers comprised a stillage from bakery yeasts production, characterized by acidic pH and high organic nitrogen content, as well as a vermicompost extract with alkaline pH and low nitrogen content. The number of operational taxonomic units (OTUs) of Archaea species significantly increased after the addition of both the organic and mineral fertilizers, in comparison to the unfertilized control. Eubacteria OTUs increased only in plants treated with the stillage. T-RFLPs profiles identified different clusters of soil rhizospheric Archaea and Eubacteria in treatments of both organic and mineral fertilizers. However, multivariate analyses performed on indicators of genetic diversity, based on the T-RFLPs profiles, and Shannon and equitability indexes of the Archaea and Eubacteria communities, pointed out marked differences between the control (or the mineral fertilization) and the organic fertilizers. The latter treatments induced also a higher root growth and a modification of the root architecture in comparison to both control and mineral fertilizer. The results are discussed with reference to the effect of the organic products on rhizospheric soil characteristics and the relationships between the plant and the rhizospheric microorganisms.  相似文献   
10.
奶牛粪蚯蚓堆肥的基质配方及对草莓育苗的影响   总被引:3,自引:2,他引:1  
将奶牛粪蚯蚓堆肥与泥炭、珍珠岩和蛭石按不同比例进行复配,然后进行草莓育苗生长试验,通过分析草莓生长情况,筛选出适合草莓育苗的最佳基质配方。结果表明,复配后育苗基质的理化性质优良,适合草莓生长。与常规基质相比,添加不同量蚯蚓堆肥的育苗基质均不同程度促进了草莓母株和一级子苗的生长(除蚯蚓堆肥完全替代泥炭处理外),随着蚯蚓堆肥比例的增加,草莓植株生长情况表现为先上升后下降的趋势。所有处理中,以蚯蚓堆肥占育苗基质物料总体积1/3的配比处理(替代50%的泥炭)的综合效果最好,较常规基质能显著提高草莓母株和一级子苗的品质,母株的株高、生物量、根系形态指标、相对叶绿素含量(SPAD值)和过氧化物酶活性,以及一级子苗功能叶的叶柄长、叶面积和SPAD值等,该配方可推荐用于架式草莓工厂化育苗生产。  相似文献   
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