Effect of liming and micronutrient application on the growth and occurrence of sterility in maize and tomato plants in a Malaysian deep peat soil

Effect of micronutrient application on the growth and occurrence of sterility in barley and rice in a Malaysian deep peat soil

“…G r o w t h a n d d r y w e i g h t Chemical properties of the soil were described in the previous paper (Ambak et al 1991). Figure 1 shows the effect of removal of each micronutrient on the growth and grain yield of barley.…”

“…The same soil as that used in the previous field trial and the incubation experiment (Ambak et al 1991) was employed in this study. Eight treatments, namely: --micronutrients, --Cu, --B, --Zn, --Fe, --Mn, --Mo, and complete were set up after liming and each treatment was duplicated.…”

“…After harvest, all the shoot and grain samples were dried at 80*C, ground and analyzed for the determination of the microelement contents. Methods of analysis were those described in the previous paper (Ambak et al 1991). Yield components and sterility percentages were also determined.…”

“…In a previous field experiment, Ambak et al (1991) observed that the growth of maize and tomato was extremely retarded and the yield very low in the treatments without micronutrient application. Significant sterility also occurred in maize and no fruits were formed at all in tomato in the same treatments.…”

Potencial de suprimento de micronutrientes de calcário oriundo da mineração de folhelho pirobetuminoso da formação Irati-PR

“…Segundo Hodgson et al (1966), o incremento de pH poderia vir a favorecer a mineralização da matéria orgânica, o que provavelmente causaria aumentos de compostos orgânicos de cobre mais solúveis na solução do solo, os quais poderiam contribuir para a manutenção da concentração do elemento. (Martini & Mutters, 1985;Ambak et al, 1991). Aumentos nos teores de Fe na planta provocados por aumentos de doses de calcário, conforme constado neste experimento, foram igualmente observados por Quaggio et al (1985), trabalhando com plantas de feijão, e por Mengel & Kirkby (1987), em experimento realizado em videiras, onde, embora tenha sido notado um aumento nos teores de Fe na planta, a clorose causada pela falta do elemento persistiu, indicando que o Fe absorvido não estava fisiologicamente ativo.…”