Poornampillai, J.R.2020-04-072020-04-071999Annals of the Sri Lanka Department of Agriculture, 1:p.277-289https://dl-doa.nsf.gov.lk/handle/1/1926PLANT PROTECTIONMoisture stressNitrogen lossesOrganic matterRice strawThespesia indicaWeed growthEffect of seed rates, nitrogen levels and organic matter on weed growth and grain yield in dry seeded rice in the loamy sands of Kilinochchi districtArticle