Perbedaan Komponen Hasil Dan Hasil 4 Genotip Ubi Jalar Di Lahan Basah Dan Lahan Kering Dengan Pemberian Kombinasi Pupuk Kalium Dan Bokashi Jerami (The Difference of Storage Root Yield Component and Yield of 4 Genotype of Sweet Potato in Wet Land and Dry Land with Aplication of Fertilizers Combination of KCl and Straw Bokashi)

Abstract

Tujuan penelitian adalah untuk mengetahui komponen hasil dan hasil beberapa genotip ubi jalar yang ditanam di lahan basah dan lahan kering dengan pemberian kombinasi pupuk KCl dan bokashi jerami. Penelitian dilaksanakan di Kebun Percobaan UNPAD Ciparanje Jatinangor, Kabupaten Sumedang, Jawa Barat dari bulan Februari hingga Juli 2015. Rancangan percobaan yang digunakan adalah rancangan acak kelompok (RAK) pola faktorial, yaitu faktor genotip yang terdiri dari 4 genotip dan 1 check, dan faktor kedua kombinasi bokashi jerami dan KCl terdiri dari 6 kombinasi dan 1 kontrol. Masing-masing satuan percobaan diulang 2 kali, sehingga secara keseluruhan terdapat 70 satuan percobaan di tiap lahan. Penelitian menunjukkan komponen hasil dan hasil ubi jalar lebih baik di lahan basah daripada di lahan kering. Genotip 95 [265 (653)] lebih dominan di lahan basah sedangkan genotip Rancing lebih dominan di lahan kering. Kombinasi pupuk 50 kg/ha KCl + 20 t/ha bokashi jerami dapat meningkatkan komponen hasil dan hasil ubi ubi jalar di lahan sawah, sedangkan kombinasi pupuk  50 kg/ha KCl + 15 t/ha bokashi jerami dan 100 kg/ha KCl + 15 t/ha bokashi jerami dapat meningkatkan komponen hasil dan hasil ubi ubi jalar di lahan kering.

The  aims of this study were to see the difference characters of genotype in two agro ecosystems, wet and dry lands fertilized with KCL and straw Bokashi.  The research was conducted at the Experimental Field of Faculty of Agricultural UNPAD Ciparanje Jatinangor from February to July 2015. The research was carried out using Randomized Block Design (RBD) two factorials. The first factor was genotype, consisted of 4 genotypes and 1 control, second factor was combination of KCl and straw bokashi that consisted of 6 combinations and 1 control. The study was repeated twice so there were 70 treatments. Storage root yield component and storage root yield growth were better in wet land than dry land. Genotype 95 [265 (653)] was dominant in wet land and Rancing was dominant in dry land. Combination of fertilizers 50 kg/ha KCl + 20 t/ha straw bokashi could increase storage root yield component and storage root yield in wet land, while in dry land combination of fertilizers 50 kg/ha KCl + 15 t/ha straw bokashi and 100 kg/ha KCl + 15 t/ha straw bokashi could increase storage root yield component and storage root yield.