s:555:"%T Indigofera tinctoria: farmer-proven green manure production systems 
%A Raats P A C 
%A van Noordwijk, M. 
%X The paper describes and analyses the cultivation systems of indigofera tinctoria practical by farmers in the Philippines, with emphasis on the utility of its non competitive growth habit at the early stages. Experimental results, which confirm farmer observations that indigo can be established at high density without affecting yield dominant companion crops, and may contribute 150-250 kgN/ha to a subsequent rice crop, are discussed. 
";