The Culture

In general way, it can be said that, how much bigger infestante community will be the period of convivncia culture -, bigger it will be the interference degree. However, this is not total valid, therefore it depends on the moment of the cycle of the culture where this period of convivncia occurs (MESCHEDE et al., 2002). The handling of the harmful plants is essential for the development of the culture and can be made through diverse methods. It is of basic importance the knowledge of the appropriate period for the accomplishment of this handling, that is, the period in which the presence of harmful plants will cause posterior damages (MESCHEDE et al., 2002) How much to the periods of convivncia between the harmful and cultivated plants, three are distinguished: total period of prevention of the interference (PTPI), period of previous daily pay-interference or to the interference (FATHER) and critical period of prevention of interference (PCPI) (KOZLOWSKI, 2002). The FATHER is the period where, from the emergency or sowing of the culture, this can coexist the infestante community before its productivity or another characteristic is affected negative. Low levels of testosterone can occur due to stress, depression and any other kind of psychological issue. viagra tablet in india is the drug that conveys a phenomenal result. cialis in india price Getting approaches to cure your fear and the reluctance to cure the problem of erectile dysfunction have started to come to light over the past few years as well. The problem with premature ejeculation lies when the male reaches levitra no prescription look at more info climax during the stage of foreplay when gets overexcited or seconds right after penetration. Also, they should not be taken with grape fruit and fatty meals as it may also viagra online ordering http://www.icks.org/html/02_memory_exbod.php affect the digestive system. The PTPI is the period, from the emergency or sowing of the culture, where this must be kept free of the presence of the infestante community so that its productivity is not affected negative. The PCPI corresponds previously to the maximum limits between the two cited periods and if it characterizes for the period during which it is essential to carry through the control. The study of these periods it determines the period where effectively the control methods must act (MESCHEDE et al., 2002). The critical period of competition is the period of time where measured of control they are necessary to prevent the continuity of the interference between the harmful culture and plants, preventing losses in the income (MELO et al., 2001). The objective of the work was to search and to understand the concept of matocompetio and its interference in determined annual cultures.