00988     2200265   4500001002100000005001500021007000300036008004100039035002000080082001900100084002500119100005800144245016700202264008600369300004300455336002100498337003000519338002300549520003400572650002700606650001500633650002400648650002300672650002700695PBTAN00000000000128820250114023205ta250114                g          0 ind    a0010-0125000120  a631.586:631.15  a631.586:631.15 KEL p0 aKelompok Penelitian Agro-ekosistem (KEPAS)ePengarang1 aPendekatan agroekosistem pada pola pertanian lahan kering :bHasil penelitian di empat zone agroekosistem Jawa Timur /cKelompok Penelitian Agro-ekosistem (KEPAS)  aJakarta :bBadan Penelitian dan Pengembangan Pertanian and Ford Foundation,c1988  axvii,250 halaman :bilustrasi ;c24 cm  2rdacontentatext  2rdamediaatanpa perantara  2rdacarrieravolume  aBibliografi ; halaman 245-250 4aadministrasi pertanian 4aJawa Timur 4amanajemen pertanian 4aproduksi pertanian 4aUsahatani lahan kering