ARARIPE´S MINERAL GYPSUM AND ITS IMPLICATIONS ON SUGAR CANE YIELD IN THE STATE OF PERNAMBUCO, BRASIL

Abstract

By a few years ago, there was a huge improvement on the sugarcane productionsystem, including a higher genetically variety, allowing the adapted plantsdevelopment to a more variable weather conditions, with a stronger resistancefor prags and sicknesses issues, potentially productive. In this meantime,researches at the Soil Fertility and Plants Nutrition area were underestimatedand relegated at a second view. Consequently, even by the possession of thispotentially productive variety, notable increasing at productivities ofproductiveness had no success at all, by the missing development researchesat this yard of Soil Fertility and Plants Nutrition, both capable of generatinginformation that could lead the property management of soils for the fullprogress of better varieties. With this special aspect, researches actions thatcold act on the advance of the sugarcane roots in acid soils with high Al3+concentrations of Pernambuco’s Zona da Mata, as the oxisoils, yellow–redultisols, and the luvisols, that represent 94% of sugarcane cultivate soils yard,will certainly be capable to provide an expressive increase of productivity.Like that, then calcium could be a great vehicle at this project of this rootzone, by its eutrophic capacity, and, principally, by the responsibility of thiselement as neutralizing of harmful activities of aluminum deep profundity.Increasing then this activity of the root for the exploration of a higher soilcapacity, would consequently amplify the efficiency of phosphate fertilizations,reducing cost with potash and nitrogen amendments. The objective of thisrevision is to difunde researches information with the agricultural gypsumof Araripe’s region, to contribute for the reconvention of some inappropriateareas, variety adaptations and also the increase of the productivity of thesugarcane in Pernambuco, validating and difunding the use of this specialtechnology inside sugarcane agriculture of Pernambuco’s Zona da Mata. Theprogress of projects that were proposing to bring agronomic information,required for the gypsum in sugarcane agriculture management, providing, with this, the appearance of a valorous partnership between the productivitygypsum of Araripe yards, and the state’s agriculture. This social–agronomicsymbious will consequently bring countless benefits for the both parts, whatwill take sustainability for the agrobusiness, occurring of this partnership.