To address the effect of organic fertilizers on rice insect pests and diseases, an experiment was carried out in Cuulong Delta Rice Research Institute (CLRRI) based on the randomized complete block design with three replications. The treatments were including a combination of four animal manure compost levels (2.5, 5.0, 7.5, 10.0 tons/ha) and four organic fertilizer levels (2.5, 5.0, 7.5, 10.0 ...

The number of studies investigating the effect of bio-fertilizers is increasing because of their importance in sustainable agriculture and environmental quality. In our experiments, we measured the effect of different fertilizers on soil respiration. In the present study, we were looking for the cause of unexpected changes in CO2 values while examining Chernozem soil samples. We concluded that ...

It was proposed to find out the optimum environmental conditions and nutritional requirements for highest growth -regulating substance and enzyme production by Streptomyces olivaceoviridis. The optimum a-amylase and proteinase activity was at 45'C and 50'C, respectively. The test strain appeared to prefer pH 4.8 and 7.0 for the maximum productivity of a-amylase and proteinase, respectively. The...

Polyunsaturated fatty acids (PUFAs) comprise about 35-40% of the total lipid content from green algae Chlorella, reaching up to 24% linoleic acid and 27% α-linolenic acid in C. vulgaris. Also, microalgae nutrient composition may be modulated by changes in the culture medium, increasing fatty acid and microelement concentrations in the algae biomass. PUFAs, such as αlinolenic (n-3) and linoleic ...