MODEL REKLAMASI LAHAN ALANG-ALANG DALAM MENINGKATKAN PRODUKTIVITAS LAHAN DI DAERAH TRANSMIGRASI PANDAN WANGI PERANAP RIAU

Aprisal, Aprisal (2010) MODEL REKLAMASI LAHAN ALANG-ALANG DALAM MENINGKATKAN PRODUKTIVITAS LAHAN DI DAERAH TRANSMIGRASI PANDAN WANGI PERANAP RIAU. Jurnal Stigma, XII (3). ISSN 0853-3776

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Abstract

The purpose of this study were: (1) to study effect of imperata land reclamation models on physical, chemical and biological soil properties, (2) to find out models of imperata land reclamation models wich sustain land productivity. The study was carried out in transmigration area, Pandan Wangi Peranap district Indragiri Hulu Riau. Soil type of this experiment area was Typic Kandiudult on 4-11% slope. The treatments were arranged in split plot design with reclamation as main plot and cropping pattern were sub plot.The reclamation models were imperata grass was burnt (Ro); imperata was cut and soil was cultivated and chopped once using hoe+rock phosphate powder+ mulch (R1), imperata was cut, soil cultivated and chopped once using hoe+manure (R2), imperata grass were sprayed with Round up, the grass straw was used as mulch and soil tilled only on crop rows (R3). The cropping pattern consists of continuous peanut(P1); peanut-soybeans-water melon (P2); peanut with corn in multiple cropping-soybean with corn-mungbean (P3); string bean and peanut in multiple cropping-soybean with corn-mungbean (P4).The corpping system for planting season 1998/1999. The results showed that reclamation models using imperata straw mulch, manure and round up were effective to improve the physical, chemical and biological soil properties. Treatment of manure and round up wich combine with peanut-soybean and water mellon were very effective increase the productivity of the imperata land and sustain. Key words: Land reclamation, land productivity, soil roperties, Imperata cylindrica.

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