Corn farming under coconut tree with full tillage and no tillage systems and its effect to soil chemistry change
2004
Zubaidah, Y. | Ridwan((Balai Pengkajian dan Teknologi Pertanian Sumatera Barat, sukarami (Indonesia)))
The field experiment was carried out at Kanagarian Guguk, Limapuluh Kota District, from April to December 2002. This assessment was arranged in factorial in Randomized Block Design with three replications. Variety of corn that used in cultivation were C5, C7, P10, Bisi, A4 and Bisma variety, by 2 system of land preparation (full tillage and no tillage). Soil analysis showed that pH was acid, total nitrogen was low, high P2O5, cation excange capacity (K, Ca, Mg) were low to medium. The result showed that C5 and C7 varieties better than other varieties. No tillage system was high of nutrient uptake and C5 variety was efficient in nutrient management. The result of final soil analysis showed that C/N was low, high P2O5, high cation exchange capacity of K, high CEC, and Ca and Mg were low. The yield of C5 and C7 are high compare to other varieties: 6,45 t/ha of C5 and 6,25 t/ha of C7, with R/C 1.47 of C5 and 1.31 of C7 (Rp 1,644,500 of C5 and Rp 1,094,500 of C7).
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