Sutharsan, S.Srikrishnah, S.2022-03-152022-03-152013http://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/8509/28-OPEN-Effect%20of%20selected%20organic%20sources%20on%20growth%20and%20yield%20of%20different%20maize%20%28Zea%20.pdf?sequence=1&isAllowed=yThe increased cost and ill effects on the environment and human being by using inorganic fertilizers have directed attention towards the use of organic manures, recently. Demand for organic agricultural products is rising in Sri Lanka due to attitude change of the people on health and environmental aspects. The increased demand for organically grown products urges scientists to disseminate knowledge to farmers. Maize is a popular coarse grain crop in Sri Lanka, grown in the second highest extent of land next to rice. Maize has a demand in foreign countries as it is used as a raw material in various industries. There is an increasing demand for exporting organically grown products including maize in Sri Lanka. In this situation, organically produced maize would gain more attraction from foreign consumers. Organic manures such as compost, cowdung etc. provides many advantages; improving soil tilth, aeration, water holding capacity and stimulating microorganisms in the soil that makes nutrients readily available (Lal, 1997) for plant absorption. However, there seems to be little use of organic manures island wide, and there is lack of knowledge on the effect of different manures on crop production. More information in relation to the use of organic manures is needed to educate the farmers. Hence, this research was carried out to evaluate the effects selected organic sources on growth and yield of maize varieties in sandy regosols of Batticaloa district and to select best manure for organic maize cultivation.enAgricultureExport AgricultureCrop Productionorganic FertilizersOther