A culture is an activity that stands out in the semi-arid region of the Northeast of Brazil for the management of entrepreneurship and income. However, in this region, agricultural production has been affected by excess salts in water and soil. Therefore, the search for strategies that reduce the problems caused by salinity in cashew cultivation is of great importance, with organic fertilization being a promisi...
Salinity is among the biggest challenges of irrigated agriculture, as it induces several limitations to the growth and physiology of plants; therefore, strategies should be sought that minimize its impacts on plants. In this scenario, the present study was developed to examine the effects of different salicylic acid (SA) application methods on photosynthetic pigments, chlorophyll a fluorescence, gas exchange, a...
Maize is the second largest agricultural crop in Brazil. It reaches high yields as supported by the intensive use of technologies, particularly mineral fertilization, which is normally costly. To lower production costs and improve crop productivity on small farms, the present study tested the efficiency of poultry litter biochar as a source of nutrients in the initial growth of BRS 2022 maize by the ‘diagnosis ...
The use of saline waters in agriculture has become an alternative for the expansion of irrigated agriculture in the semiarid regions. However, it is necessary to develop techniques capable of mitigating the effects of stress caused by excess salts on plants. In this context, the objective of present study was to evaluate the growth and production of cotton cv. BRS Jady irrigated with waters of increasing levels...
The gray water footprint (GWF) is defined as the volume of fresh water needed to dilute contaminants incorporated into the surface and subsurface layers of the soil, through the emission of agrochemicals in agricultural production. Therefore, the objective of this research was to evaluate the gray water footprint in tomato cultivation in Brazilian semiarid regions. The study was developed in the municipalities ...
The Brazilian Northeast region provides favorable conditions for the exploitation of several crops, but the high salt concentration in irrigation water constitutes a limiting factor for production in most cases. In this context, this study aimed to evaluate the emergence, growth and partition of photoassimilates in soursop seedlings, cv. ‘Morada Nova’, subjected to irrigation with water of increasing salinity l...
West Indian cherry is of great socioeconomic importance to Brazil because of its potential to keep local workers in rural areas and generate income. It is mainly cultivated in the Northeast region, where high salt concentrations are common in water. This study was conducted to evaluate gas exchanges and production of West Indian cherry cultivar (cv.) ‘BRS 366 Jaburu’, as a function of irrigation with water of d...
Jatropha curcas is a perennial plant and appreciable concentrations of oil in its seeds. The objective of this work is to evaluate the growth and development of jatropha plants in response to different fertilization recommendations regarding organic matter and phosphorus under irrigated conditions. Was conducted experiment potted conditions in a randomized block design with four replications and one plant per p...
Objetivou-se avaliar os índices fisiológicos e o crescimento do algodoeiro colorido cv. BRS Topázio submetido à irrigação com águas de diferentes níveis de salinidades e adubação com doses de potássio. O experimento foi conduzido em vasos sob condições de casa de vegetação, utilizando-se um Neossolo Regolítico Eutrófico de textura franco-arenoso não salino. Utilizaram-se o delineamento de blocos casualizados, c...
This study was conducted with the objective of evaluating the gas exchanges and production components of colored-fiber cotton as a function of irrigation with water of different saline levels and nitrogen (N) doses. The experiment was carried out in drainage lysimeters, filled with eutrophic Regolithic Neosol of sandy loam texture, in the municipality of Campina Grande-PB, Brazil. The statistical design was ran...