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Ridwan Ridwan
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SISTEM USAHA TANI JAGUNG PADA GAWANG KELAPA Yulinar Zubaidah; Ridwan Ridwan; Rafli Munir
Jurnal Solum Vol 2, No 1 (2005): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.152 KB) | DOI: 10.25077/js.2.1.1-9.2005

Abstract

A research about integrated farming system research for maize among coconut trees was carried out in Tabek Panjang village, Lima Puluh Kota Regency. The objective of the research was to find out the best adaptation of maize variety, hybrid and high yielding of maize composite, combined with zero tillage technology. The data were analyzed by using comparative analysis approach between the improve technology in the technical work (productivity and economic cost, profitable and R/C ratio). The result showed that maize C9 hybrid gave the highest yield 7,34 ton/ha, maize C7 hybrid and Bisma varieties gave yields 6,84 ton/ha and 4,56 ton/ha, respectively. The farm operation analysis showed that maize C9 hybrid gave profit Rp 4,060,000 and R/C 2,24 , maize C7 hybrid Rp 3,561.000 and R/C 2,09 and maize Bisma variety Rp. 1,434,850 R/C ratio 1,46. In general, the result of the a study showed that land preparation with zero tillage system was better for maize C7 and C9 hybrids planted among coconut trees. Keywords: The intercropping farming system, zero tillage
PENGARUH VARIETAS DAN SISTEM PERSIAPAN LAHAN PADA TANAMAN JAGUNG Ridwan Ridwan; Yulinar Zubaidah
Jurnal Solum Vol 2, No 2 (2005): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/js.2.2.%p.2005

Abstract

Maize productivity was affected by land preparation system, crop variety, and management. A field experiment was conducted in Guguk Lima Puluh Kota Regency during planting season 2002 (from July to November 2002). The experiment was designed in a split plot design with three replications. Two varieties of corn (Bisma and P10-hybrid) as a main plot and three methods of land preparation (no tillage, conventional tillage, and strip tillage) as a subplot. Objectives of the experiment were to find out a combination of better crop variety and land preparation methods on maize growth. The results of the experiment showed that maize P 10-hybrid gave the shorter plant height, the higher number of seeds /cob and yield. Bisma and P10-hybrid varieties gave yield 7.91 and 8.51 t/ha, respectively. Plant growth, yield components, and yield of maize had not been affected by land preparation methods. However, no tillage and strip tillage methods seemed to give higher yield (8.26 and 8.90 t/ha, respectively) and more efficient than conventional tillage. Key Words: maize variety, no tillage, conventional tillage, and strip tillage
PENGELOLAAN BAHAN ORGANIK DENGAN SISTEM TANPA OLAH TANAH DAN KOMPOS LANSUNG DITEMPAT Yulinar Zubaidah; Ridwan Ridwan
Jurnal Solum Vol 3, No 1 (2006): Jurnal SOLUM
Publisher : Jurusan Tanah Fakultas Pertanian Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (55.516 KB) | DOI: 10.25077/js.3.1.1-7.2006

Abstract

The addition of the organic matter into a soil will improve the physical, chemical and biological properties of the soil and the soil quality can be maintained. The organic matter application into agriculture field can be done directly at no tillage system farming or can be composted insitu. In the no tillage system weeds were controlled by herbicide. Application and insitu composting of the crop residual and weed were incorporated into the soil before maize planting. The results of the experiment showed that, the direct (insitu) composting system gave the higher yield of maize and more profitable than without application of organic matter. The utilization of organic matter in no tillage system and insitu composting were more advantageous because the organic matter were not processed such as compost, and cost as well as time was more efficient. Keywords: No tillage system, insitu composting, maize, palm trees
Co-Authors Rafli Munir Yulinar Zubaidah Yulinar Zubaidah