For the last two decades a significant portion of the world's agricultural research has focused
on rice. That research resulted in the development of modern rice varieties and a modern …

A review, with 261 references, of (a) aerobic respiration in the soil, anaerobic respiration
(reduction of NO3, Mn, Fe, SO4, CO2 etc.), fermentation, and the degradation of …

The organic acids, formic, acetic, propionic, and butyric acids when applied at 0.5 and at 1.0
mmole/100 g soil to neutral Philippine soils, retarded rice growth. Acids with higher …

The plow layer of a flooded soil is generally characterized by low redox potential and low
oxygen tension. Under such conditions, organic acids are known to be produced by the …

O manejo de resíduos orgânicos sob condições anaeróbias pode, durante a fase inicial do
processo metabólico, levar à formação de ácidos orgânicos voláteis (C1-C4), cuja atividade …

Among inorganic and organic compounds produced in submerged soils, iron, sulfides, and
organic acids deserve special attention, because they are highly toxic to rice and probably to …

A field experiment assessing the effect of the annual application of anaerobically-digested
cattle manure (ADM), produced at a biogas plant, on paddy rice was conducted. In plots with …

Recently, low input and high sustainability in agricultural production have received much
attention. Cultivation systems with cover crops have been studied (Ueno, 2004). The …

Interest in organic farming has grown appreciably over the last few decades because of
uneasiness for food quality and destruction of environment (Hansen et al. 2001; Chang et al …

It has been widely considered that organic acids accumulated in the soils of the illdrained
humic paddy fields and of the fields with heavy application of green manures cause the root …