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Autore principale:	José Regalado López
Natura:	Artículo científico
Lingua:	es
Pubblicazione:	Universidad Politécnica Salesiana 2021
Soggetti:	Ciencias de la Tierra Puebla tecnología Grupo de acción producción de maíz
Accesso online:	https://www.redalyc.org/articulo.oa?id=476068396007 https://www.redalyc.org/journal/4760/476068396007/ https://www.redalyc.org/journal/4760/476068396007/html/ https://www.redalyc.org/journal/4760/476068396007/476068396007.epub https://www.redalyc.org/journal/4760/476068396007/movil https://doi.org/10.17163/lgr.n34.2021.06
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LOS GRUPOS DE ACCIÓN Y LA APLICACIÓN DE TECNOLOGÍA DE ALTA PRODUCTIVIDAD PARA MAÍZ DE SECANO EN LOCALIDADES DEL PLAN PUEBLA, MÉXICO José Regalado López Nicolás Pérez Ramírez Javier Ramírez Juárez José Arturo Méndez Espinoza Ciencias de la Tierra Puebla tecnología Grupo de acción producción de maíz El objetivo del artículo es evidenciar la importancia que tienen los grupos de acción y la aplicación de tecnología no solo en la producción de maíz sino también en los ingresos económicos de los agricultores. Los grupos de acción constituyen el medio para hacer compras consolidadas de insumos, gestionar recursos financieros y favorecer una mejor comercialización del producto. La metodología consistió en sistematizar información del seguimienteo de un grupo de acción constituido por diez productores que aplicaron tecnología mejorada para producir maíz; esta información se complementó con una encuesta socioeconómica de 30 agricultores de tres municipios. Los resultados indican que la integración de grupos de acción permite incrementar los rendimientos en casi un 50% más respecto al grupo testigo, obteniendo una relación b/c de 2,44 en promedio. En conclusión, se produce un volumen de producción de maíz suficiente para satisfacer las necesidades de autoconsumo de las familias y excedentes para la venta; estos niveles de producción favorecen la reproducción de las familias rurales. Este artículo aporta información para la toma de decisiones en la implementación de programas de producción de maíz en otras localidades. 2021 artículo científico 1390-3799 https://www.redalyc.org/articulo.oa?id=476068396007 https://www.redalyc.org/journal/4760/476068396007/ https://www.redalyc.org/journal/4760/476068396007/html/ https://www.redalyc.org/journal/4760/476068396007/476068396007.epub https://www.redalyc.org/journal/4760/476068396007/movil https://doi.org/10.17163/lgr.n34.2021.06 es http://www.redalyc.org/revista.oa?id=4760 La Granja. Revista de Ciencias de la Vida application/pdf Universidad Politécnica Salesiana La Granja. Revista de Ciencias de la Vida (Ecuador) Num.2 Vol.34

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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Environment & details: