North-Eastern India is blessed with a vast diversity of rice genotypes varying yielding abilities. However, the predominant strong soil acidity induced nutrient stresses from toxicity aluminum (Al3+) ions often causes sub-optimal productivity. The lack suitable media for screening (Al) tolerance one limiting factors in Al tolerant varieties' development. Modified Magnavaca's solution has been m...

A saturação por bases (V%) é um indicativo de fertilidade dos solos, sendo que níveis altos indicam existem grandes quantidades cátions, como Ca²+, Mg²+ e K+, proporcionando a diminuição valores íons H+ do alumínio trocável solo (Al3+). Já (m%) expressa toxidez solo, também, refere-se porcentagem da CTC efetiva ocupada alumínio, neste caso, elevados m%, o ácido, podendo conter Al3+ em nível tóx...

The present investigation aimed at the determination of Cr addition on microstructure, phase composition, and mechanical properties Al-Cu-Y-Zr alloy. Quasi-binary alloys ternary Al-Cu-Y system with atomic rotation Cu/Y = 4/1 have a narrow solidification range high solidus temperature. 0.3% in Al-5.1Cu-1.7Y-0.3Zr alloy provides formation novel quaternary Al81–85Cu7–10Y3–4Cr5 phase. L12-Al3(Zr,Y)...