PELUANG EFISIENSI PENGGUNAAN DAN BIAYA PUPUK PADA LAHAN SAWAH HASIL ANALISA TANAH (KASUS DI KECAMATAN MAOS KABUPATEN CILACAP)

Abstract

The nutrient mapping objectivity is 1) Information and data can lowland on P and K nutrient, 2) Lowland cover account for level P and K status. The using impact is efficient and rational for P and K. Fertilizing recommended of paddy, the fertilizer need efficient is guiden soil nutrient status. Analysis program on the chemical element status of the ricefield P and K in 2003 is located in Maos Subdistrict of Cilacap Regency. Methodology use comprises: preparation, operation of soil sample taking and analysis of soil. Main Survey performs the sample talking of individual soil which is become as sample of comphosit sample, 1 sample of chomposit sample consist of 10- 15 sample of individual soil. The next level is sample of chomposit, show much 156 cohmposit soil, the data from the result of soil analysis of the content P and K through 3 status (low criteria, middle and high). Commonly.  The result of the status mapping on the ricefield P and K is as follows: there are 156 samples of soil of the chemical element status P; low up to high of Maos Subdistrict, the middle status is 31-38 mg/100 mg P2O5 or 735,052 hectars wide; and the high status is 50-77 mg / 100 g P2O5 with 1258,282 hectars wide, but the status of middle chemical element K is 14-18 mg/100 g P2O5 with 1.696,649 hectars wide and the status of high K is 22-37 mg/100 g K2O with 400,738 hectars wide by doing fertilizing suitable with the result of soil analysis, so the cost can be economized for Rp 370 259 63,-1 per season for the buying of the fertilizer SP-36 and Rp 35. 093.520 per planting season for the buying of the fertilizer KCL.