Magnesium sulphate and the development of the common bean cultivated in an Ultisol of Northeast Australia

Abstract

Magnesium applications (MgS0(4).7H(2)0) to achieve 8 and 16 mmol c/cm3 of Mg (324 and 1284 kg of MgS0(4) ha-1) were made on one Ultisol from Australia Northeast to correct Mg deficiency in plants and to verify the optimum level of Mg to grow common bean (Phaseolus vulgaris L). Magnesium was applied together with lime, N, K, Cu, Zn, B, and Mo as calcium carbonate, ammonium nitrate, potassium phosphate, cupric and zinc sulphate, boric acid and sodium molybdate respectively a month before planting and P as phosphoric acid at the planting. The pH reached the equilibrium after six weeks of incubation. Higher electrical conductivity (EC) was observed in soil where Mg was applied to reach 8 mmol c/cm3 in the absence of common bean and 16 mmol c/cm3 when the plant was present. Higher plant height, leaf area, dry matter weight:leaf area ratio and nutrient concentrations were observed in plants cultivated in soils treated with Mg to reach 8 mmol c/cm3 and 16 mmol c/cm3 when the plant was present. The plant top P content was very low but N, Ca and Mg contents can be considered normal for the common bean.

Effect of Foliar Application of Micronutrients, Magnesium and Wrapping Films on Yield, Quality and Storability of Green Bean Pods

“…It also acts as an activator certain enzymic reactions (Delvin and Witham, 1986). The Mg application enhanced snap bean growth, yield and quality as reported by Wang-Hong and Bao,(1999), Mohammed et al(2009), Olivira et al(2000), Swiereczewska and Sztuder (2001) and Ibrahim et al (2010).…”

Antibacterial Activity of Bacteria Isolated from Fermenting Cocoa Water against Some Pathogenic Bacteria

“…The increase in temperature might be due to the metabolic activities of the fermenting microorganisms leading to heat production. This collaborated with the findings of Olivera et al, (2000) and Lima et al, (2011).…”

“…They can exert their effect on microorganisms in any of the following ways; protein synthesis inhibition, inhibition of cell wall synthesis, inhibition of nucleic acid synthesis (Kimball and Jefferson, 2006). The preservative activities of these microorganisms are due to their ability to produce a variety of antimicrobial substances as a natural competitive means to overcome other microorganisms sharing the same niche (Olivera et al, 2000). Cocoa belongs to the family Malvaceae esterculiacea.…”

Mudança No Uso E Ocupação Do Solo Na Bacia Hidrográfica Do Rio Uruçuí-Preto, Piauí.

“…De acordo com Domingues et al (2016), o cálcio está envolvido em reações complexas com outros elementos químicos presentes na solução do solo, e tem sido difícil estimar as quantidades solúveis disponíveis para absorção pelas plantas. Em outro trabalho, Oliveira et al (2000) avaliaram diferentes níveis de Mg no solo (0, 8 e 16 mmolc dm -…”