Effect of liming and its residue on crop performance, nutrient uptake and yield of peanut (Arachis hypogaea L.) on clay podzolic soil
1989
Darmadjati, S. | Sjarifuddin, K.
Two experiments were conducted at Sitiung Experimental Farm and Sitiung IV, West Sumatra. Experiment one was carried out during dry season 1982, with two rates of liming : 0 and 2 t/ha. The peanut variety used was Gajah. Experiment two consisted of 3 consecutive croppings. First crop was peanut in dry season 1986 with 2 t/ha of lime. The second crop was upland rice in wet season 1986/87, without liming. The third crop was peanut again in dry season 1987 without liming. Four varieties of peanut were used in the first and the third crop namely : Gajah, Tapir, Pelanduk and Moket. Liming on the first planting increased exchangeable Ca from 0.6 to 10.4 me/100 g soil and improved other soil chemical properties. At the third planting exchangeable Ca decreased to 1.8 me/100 g soil. Concomitantly the nutrient contents decreased and the absorption of N and P decreased about 50 percent and K about 40 percent. The seed quality (weight of 100 seeds) and the yield of peanut in experimental one increased 10 and 53 percent respectively due to 2 t/ha of lime application. However, from experiment two, after one year application of 2 t/ha of lime on B2 climate type the effects dissappeared.
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