Effect of P, Zn and crop residue return on grain yield and P uptake of direct seeded rice

Climate change greatly impacts on agricultural cultivation, including in rainfed rice fields. Improving rice crop performance and productivity in rainfed fields could be done by adaptation in dealing with climate change. This study aims were to determine the effect of providing P, Zn and Crop Residue Return (CRR) on direct seeded rice. This study was conducted at the Jakenan Experimental Station, Pati, Central Java, Indonesia from September 2012 to January 2013. A randomized block design was used, and these treatments consisted of various doses of P fertilizer (OP, 1/2 P, P), providing Zn, and incorporation of crop residue. The observed parameters were plant height, maximum tillers per hill, productive tillers per hill, filled grain per panicle, grain yield, weight of dry straw, P-uptake. The results of this study indicated that providing P, Zn, and CRR have positive effects to plants growth and rice yield component. The treatment of 1/2 P+ CRR + Zn took the best effect on plant growth and rice yield component. Applying of CRR and Zn could be a adaptation techniques and sustainable tools in the field that has beneficial impact for plant growth and rice yield component.