Browsing by Author "Solaiman, A. R. M."

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    CHANGES OF PHYSICAL AND CHEMICAL PROPERTIES OF POST HARVEST SOIL OF T. AMAN RICE AS INFLUENCED BY ORGANIC AND INORGANIC PHOSPHORUS
    (Sher-e-Bangla Agricultural University Research System (SAURES), Dhaka, Bangladesh, 2012-01) Islam, M. S.; Solaiman, A. R. M.; Karim, A. J. M. S.; Rahman, G. K. M. M.; Haque, M. M.
    Due to low organic mailer content the agricultural soils of Bangladesh has poor physical and chemical condition. Moreover, the continuous use of phosphorus (P) fertilizers build-up of excessive P in many cultivated soils has created an interest in the combined use of organic and inorganic P fertilizer. Hence, a field experiment was conducted at the Bangabandhu Sheikh Mujibur Rahman Agricultural University Farm, Gazipur, Bangladesh during the Aman season of July 2008 to January 2009 to investigate the effects of combined application of inorganic phosphorus (Pi) and organic phosphorus (1),,)on the changes of physical and chemical properties of soil after T. Aman cultivation. The eight treatments were To, Control/ no fertilizers; T" recommended dose offertilizers; Tz, 50% P through TSP and 50% P through cowdung; T), 75% P through TSP and 25% P through cowdung; T" 50% P through TSP and 50% P through poultry manure; Ts, 75% P through TSP and 25% P through poultry manure; To, 50% P through TSP and 50% P through household wastes; T1, 75% P through TSP and 25% P through household wastes. The experiment was laid out in randomized complete block design (RCBD) and replicated thrice. The physical and chemical properties of the soils were influenced directly by the above mentioned treatments. The physical properties of soil such as particle density and bulk density at different soil depth and plough pan decreased in response to addition of organic matters whereas no significant changes were found in response to inorganic P. The rate of improvement of chemical properties such as organic carbon (OC), cation exchange capacity (CEC), total nitrogen, available Phosphorus (P), exchangeable potassium (K), available sulphur(S), exchangeable calcium (Ca), exchangeable magnesium (Mg) and exchangeable sodium (Na) was higher with inorganic plus organic amendment than to inorganic alone. In addition, soil pH decreased in all treatments. Based on the above results it is suggested that the combined use of inorganic and organic P significantly improve physical and chemical properties of post harvest T. Aman soil.
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    NUTRIENT CONTENT IN T.AMAN RICE AS INFLUENCED BY PHOSPHORUS FROM INORGANIC AND ORGANIC FERTILIZERS APPLIED WITH IPNS BASIS
    (Sher-e-Bangia Agricultural University Research System (SAURES), 2019-01) Islam, M. S.; Solaiman, A. R. M.; Rahaman, G.K.M.M.; Islam, M. M.
    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.