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Designs for cropping systems research

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Title Designs for cropping systems research
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Creator Rajender Parsad
V.K. Gupta
R. Srivastava
 
Subject EGD designs
Orthogonal factorial structure with balance
Nested group divisible designs
Structurally incomplete row–column designs
Designs for multi-stage experiments
 
Description Not Available
The present article establishes equivalence between extended group divisible (EGD) designs and designs for crop sequence experiments. This equivalence has encouraged the agricultural experimenters to use EGD designs for their experimentation. Some real life applications of EGD designs have been given. It has also been shown that several existing association schemes are special cases of EGD association scheme. Some methods of construction of EGD designs are also given. A catalogue of EGD designs obtainable through methods of construction along with efficiency factors of various factorial effects is also presented. In some crop sequence experiments that are conducted to develop suitable integrated nutrient supply system of a crop sequence, the treatments do not comprise of a complete factorial structure. The experimenter is interested in estimating the residual and direct effect of the treatments along with their cumulative effects. For such experimental settings block designs with two sets of treatments applied in succession are the appropriate designs. The correspondence established between row–column designs and block designs for two stage experiments by Parsad et al. [2003. Structurally incomplete row–column designs. Comm. Statist. Theory Methods 32(1), 239–261] has been exploited in obtaining designs for such experimental situations. Some open problems related to designing of crop sequence experiments are also given.
Not Available
 
Date 2017-09-13T05:07:28Z
2017-09-13T05:07:28Z
2007-05
 
Type Research Paper
 
Identifier Parsad, Rajender, Gupta, V.K. and Srivastava, R. (2007). Designs for cropping systems research. Journal of Statistical Planning and Inference, 137(5), 1687-1703.
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http://krishi.icar.gov.in/jspui/handle/123456789/5279
 
Language English
 
Relation Not Available;
 
Publisher Elsevier