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Dry matter yield response of pasture grass to application of Nemafos (thionazin).
Get PDFResults of several field trials on the response of permanent grass swards and of sown swards with and without clover to application of thionazin (as Nemafos) at about 8 ml/m2 before each cut are described. Where N was the main factor limiting growth, plots with Nemafos grew better than the controls because of an increase in available soil N. At high levels of N, growth was improved because of direct stimulation of regrowth after cutting. Nemafos had a favourable effect, which lasted longer with successive cuts, on the development and vigour of tillers. The yield responses were unrelated to control of nematodes. [See also HbA 39, 422]. (Abstract retrieved from CAB Abstracts by CABI’s permission
Grasgroei en beworteling
Get PDFBij hoge N-bemesting is de wortelmassa van gras klein vergeleken met die bij een minder hoge N-bemesting. Door het regelmatig oogsten wordt de wortelmassa nog eens extra gedrukt ten opzichte van die bij ongestoorde groei. Er bestaan belangrijke erfelijke verschillen in wortelmassa tussen klonen van Engels raaigras. Een grotere wortelmassa gaat samen met een grotere concurrentiekrach
The influence of management and nitrogen application on the botanical composition of grassland
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Ontwikkeling en groei van produktiegras onder Nederlandse omstandigheden
Get PDFBedoeld voor onderzoek en onderwijs zijn verschillende onderzoeksresultaten bijeengebracht om een indruk te geven van de stand van zaken en de kennis m.b.t. groei en ontwikkeling van gra
Improvement of white clover growth with non - phytotoxic compounds known to control soil parasites
No full textGoing Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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