<?xml version="1.0" encoding="utf-8"?>
<export-example>
  <doc>
    <id>271</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>57</pageNumber>
    <edition/>
    <issue/>
    <volume/>
    <type>bachelorthesis</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2018-08-07</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>2018-05-29</thesisDateAccepted>
    <title language="eng">Assessment of growth and yield potential of different vegetable amaranth type in Kleve, Germany</title>
    <abstract language="eng">Amaranthus belongs to the Amaranthaceae family which has approximately 70 species. It is considered as an underutilized plant but some research in the recent years showed that it is a promising plant for future nutrition supply. Amaranths are widely known for its nutritional value and their easy growing habit. This underutilized plant can become a good option for the commercial growers because it is easy to grow, it has high nutritional value and low maintenance cost. Many species of the Amaranthus genus are known as annual weeds, some are used as a vegetable and ornamental plants, some are known as pseudocereals which are mainly used for their grain. The core objective of this study was to assess the growth and yield potential of different vegetable amaranths to select a suitable variety for Kleve, Germany. Eight vegetable amaranths variety (Leafy variety and Stem variety) were grown in the experimental garden of Hochschule Rhein-Waal University. A seed germination test was also conducted at thelife science lab to observe the best seed germination rate at different temperatures. Plant height, number of leaves per plant were measured continuously after two weeks of sowing till the harvest week. The fresh and dry weight of leaf, stem and root were measured after final harvest. The statistical analysis of growth and yield performance of stem and leafy varieties were done separately. Leafy varieties showed a high variation in yield and germination rate than stem varieties. Leafy variety 'Surinamese Spinach'(L7) and 'Marog Green' (L8) excelled in all yield parameters whereas 'Chinese Spinach' (L6) was consistent in low growth and yield. Stem variety 'Danta Bhutan' (S2) and 'Danta Lusina' (S3) showed low yield performance. All the varieties showed a high germination rate above 20°C in seed germination test.</abstract>
    <identifier type="urn">urn:nbn:de:hbz:1383-opus4-2711</identifier>
    <author>Tamanna Tanzin</author>
    <collection role="institutes" number="">Fakultät Life Sciences</collection>
    <thesisPublisher>Hochschule Rhein-Waal</thesisPublisher>
    <thesisGrantor>Hochschule Rhein-Waal</thesisGrantor>
    <file>https://opus4.kobv.de/opus4-rhein-waal/files/271/thesis_tamanna.pdf</file>
  </doc>
  <doc>
    <id>252</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber/>
    <edition/>
    <issue/>
    <volume/>
    <type>bachelorthesis</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2018-07-14</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>2018-06-01</thesisDateAccepted>
    <title language="eng">The influence of lime, iron sulphate-lime mixtures, and iron compounds on bioavailable phosphorous</title>
    <abstract language="eng">Available nutrients for higher plants in the soil are crucial in agriculture and can be repressed by farming practices. The objective of this thesis was to determine if the application of a lime-FeSO4 mixture reduces the available phosphorus for higher plants further than conventional liming. For this, soils from the Lower Rhine region in Germany with different soil properties were collected, treated with different applications, and incubated over a predefined time. Aerobic and anaerobic conditions were created by raising the soils’ water content to 50% and 100% of their maximum water holding capacity. Bioavailable phosphorus was extracted from the incubated samples with the Calcium-acetate-lactate (CAL) method, and analysed in the Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES). Statistical analysis was conducted with the open-source program “R for statistical computing”. Results showed that not the treatment but rather the type of soil had a significant effect on the phosphorus availability. At some extent the WHC significantly influenced the phosphorus availability. In general, lime-FeSO4 mixtures showed a tendency to have higher phosphorus availability than conventional liming. Effects of long-term field application cannot be determined because the experiment was conducted under laboratory conditions for a limited time. For farming, further field experiments and monitoring of fields where the lime-FeSO4 mixtures are regularly applied can exclude negative long-term effects and determine sufficient the effect of lime-FeSO4 mixtures on bioavailable phosphorus.</abstract>
    <licence>CC BY-NC-SA 4.0 International - Namensnennung-Nicht kommerziell-Weitergabe unter gleichen Bedingungen</licence>
    <author>Sebastiaan Richter</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Phosphorus</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Liming</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Bioavailability</value>
    </subject>
    <collection role="ddc" number="50">Naturwissenschaften</collection>
    <collection role="institutes" number="">Fakultät Life Sciences</collection>
    <thesisPublisher>Hochschule Rhein-Waal</thesisPublisher>
    <thesisGrantor>Hochschule Rhein-Waal</thesisGrantor>
  </doc>
  <doc>
    <id>297</id>
    <completedYear/>
    <publishedYear>2018</publishedYear>
    <thesisYearAccepted/>
    <language>eng</language>
    <pageFirst/>
    <pageLast/>
    <pageNumber>74</pageNumber>
    <edition/>
    <issue/>
    <volume/>
    <type>bachelorthesis</type>
    <publisherName/>
    <publisherPlace/>
    <creatingCorporation/>
    <contributingCorporation/>
    <belongsToBibliography>0</belongsToBibliography>
    <completedDate>2018-10-22</completedDate>
    <publishedDate>--</publishedDate>
    <thesisDateAccepted>2018-10-12</thesisDateAccepted>
    <title language="eng">Influence of humic acids on nutrient use efficiency of three phosphorus sources in a sandy soil</title>
    <abstract language="eng">A pot trial was conducted under greenhouse conditions to assess the effect of humic acid (HA) application in combination with rock phosphate (RP) on the plant phosphorus (P) nutrient use efficiency (NUE), in comparison to the performance of struvite (ST) and triple superphosphate (TSP) amended plants. A sandy soil, exhibiting a low P content, was used in combination with a lignite derived, liquid humic acid product, with a HA content of 4.8 %. Nine groups of perennial ryegrass (Lolium perenne L.) were set up as experimental plants, in replications of six, each containing 4.5 kg air dry soil with a P supply of 27 mg P kg-1 soil, causing P deficiency during the experiment. HA was applied at rates of 1, 30 and 100 mg kg-1 soil, directly to the soil as coated RP or as foliar application. Aboveground biomass was harvested biweekly, five times in total. Amendment performance was evaluated by analysing plant biomass, soil pH, plant phosphorus-, carbon-, nitrogen-, iron-, zinc-, manganese- and boron contents. The label doses of 1 mg kg-1 soil as well as 100-fold increases in HA concentration didn’t result in a significant difference in plant shoot or root growth and P NUE compared to untreated plants. Positive trends were displayed at higher foliar application rates. Plant tissue micronutrient concentrations of HA treated samples were generally lower and partly significantly lower than the control. The detected effects were accredited to the hormone-like influence of HA on plants’ metabolism and the ability to alter soil conditions. The lack of calcium in ST amended samples resulted in better plant P availability, significantly higher P uptake and better shoot biomass development. Trends show that ST could be applied in combination with HA to further increase plants P NUE in the future.</abstract>
    <identifier type="urn">urn:nbn:de:hbz:1383-opus4-2978</identifier>
    <licence>CC BY-NC-ND 4.0 International - Namensnennung-Nicht kommerziell-Keine Bearbeitungen</licence>
    <author>Mattis Höft</author>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Humic acid</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Phosphorus</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Struvite</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Rock phosphate</value>
    </subject>
    <subject>
      <language>eng</language>
      <type>uncontrolled</type>
      <value>Triple superphosphate</value>
    </subject>
    <collection role="ddc" number="63">Landwirtschaft</collection>
    <collection role="institutes" number="">Fakultät Life Sciences</collection>
    <thesisPublisher>Hochschule Rhein-Waal</thesisPublisher>
    <thesisGrantor>Hochschule Rhein-Waal</thesisGrantor>
    <file>https://opus4.kobv.de/opus4-rhein-waal/files/297/Bachelor Document 1.0.pdf</file>
  </doc>
</export-example>
