The validity of the samplings in rice cultivation and the border effect

Abstract

The work carry out in the Scientific TechnologicalBase Unit (UCTB) Los Palacios, Pinar del Río, on a soilHidromórfico Gley Nodular Ferruginoso, during the campaignslittle rainy 2004-2005 and 2006 - 2007, with the objective ofknowing up to where the border effect can arrive and all couldfalsify the data of the sample so much in the field of theinvestigation like in the production if one doesn�??t keep in mindthis aspect. This way you could economize area and resourceswhen to mount an experiment or to make a works planningproduction used. To carry out the evaluations the INCA varietyLP-5 it was used in four parcels of 2 x 2 m where it was measuredheight and yield following the methodology described by JICAin the 2008. The results showed that contrary to those reportedunder other conditions the border effect it can reach until 30cm of the event that provokes it, and the data vary significantlywith regard to the affected area. Considering the high cost ofthe field experiments this result has particular importance sinceit allows to economize resources being able to use experimentalparcels of smaller size, also has application in the riceproduction where most of the cultural activities that are carriedout to the cultivation depend on mensurations andobservations, allowing to make an appropriate planning of thecrop, herbicide applications, fungicides, insecticides andfertilizers, among other works.