NUTRIENT CONTENT IN T.AMAN RICE AS INFLUENCED BY PHOSPHORUS FROM INORGANIC AND ORGANIC FERTILIZERS APPLIED WITH IPNS BASIS

Abstract

A field study was conducted at the Bangabandhu Sheikh Mujibur Rahman Agricultural University Research Farm, Gazipur. during the aman season July 2008 to February 2009 to evaluate the effect of combined use of organic and inorganic phosphorus (P) sources on nutrient content in rice grain and straw of T. Am:1I1rice, Eight treatments including a control a recommended dose, of inorganic fertilizers and six other ... which were combinations of inorganic and organic fertilizers where 50 % and 75 % of recommended doses of P were provided by using triple super phosphate (TSP) and the remaining 50 % and 25 % of P were amended by using either cowdung (CD). poultry manure (PM) or household waste (H W). The nutrient P as per treatments and nitrogen ( ). potassium (K) and zinc (211) as per recommended dose were applied. Combined application of inorganic and organic sources of I' significanrty increased the nitrogen (N). phosphorus (P). potassium (K). sulphur (5) and calcium (Ca) content in both rice grain and straw ofT. AIIUII1rice. The treatment T. receiving 50 % P through TSP and 50 % P through I'M increased the concentration of N. P. K. Sand Ca in rice grain. On the other hand, the rice straw contained maximum N from treatment ofT, receiving 50 % P through TSP and 50 % P through HW whereas P. K and S content was maximum from the treatment of T, The Cu content found maximum in rice straw from 1 < treatment receiving 75 ~. P through TSP and 25% P through P:-'1.Magnesium (Mg) and sodium (Na) concentration of both rice grain and straw did not show any significant differences in all the ... Therefore, the above resuhs suggest Ihat the together application of both inorganic and organic fertilizers as IP ba-ds increase the different nutrients concentration in rice grain and straw of Aman rice.