| dc.description.abstract | The requirement to produce an optimal method for healthy and fresh vegetable
production with high quality and without any harmful accumulative effect to soil is a
topic of universal interest at this moment. Base on this idea, this research had been
carried out with purpose to investigate different planting components and strategies,
finally combined them to give the best method. Within the research theme, coconut
coir and peat were used as the main substrates, they were separately treated with
different methods, quality tested and combined with different ratios to compare which
substrate and ratio give highest results. Moreover, the effect of Azotobacter, which
was grown in various medium, and nutritional solution with different concentration on
plant growth were also examined. The recorded results indicated that the Azotobacter
could be grown best in compost medium, coconut coir dust need to be treated by
water 24-36 hours to eliminate mineral elements and reduce EC values. In addition, by
combining of coconut coir and peat with Azotobacter supply, the ratio 30:70 and 50:50
were proved as the most suitable mix for the Green Lollo and Frisee lettuce,
respectively. Moreover, by adding Azotobacter and nutritional solution, the vegetables
were recorded to be grown even better. Finally, the research came to conclusion that
different kinds of lettuce need different mixing ratio of coir-peat to be ideally grown
with addition of specific amount of Azotobacter and nutritional concentration. Further
investigation should be done with several other vegetables and microorganism to
make ideal products in industrial scale which are easily and convenient for agricultural
cultivation. | en_US |
