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Judul	:	Long term tillage and nitrogen fertilizatiaon effects on soil properties and crop yields
Pengarang	:	Utomo, Irwan Sukri Banuwa, dkk
Sumber	:	Jurnal Tanah Tropika, Vol 18
Volume	:	18
No	:	2
Perpustakaan	:	pertanian
Abstrak	: