Effect of organic fertilizer and its residual on cowpea and soybean in acid soils

Abstract

Abstract:The expansion of planting areas on acid soils is one of the strategies to achieve Indonesian self-sufficiency program on food. Acidic soil has low pH that causes contents of Al, Fe, and Mn are high. In addition, acidic soil also only has low microbial population. These conditions make soybean growth is not optimal. This research consisted of two phases i.e., the first and second planting. The first planting was aimed to study the effectiveness of fertilizer treatment, with three replications, using cowpea commodity. The second planting was done without additional fertilizer that consisted of three replicates (continued from the first planting) using soybean. This research that was carried out at Iletri's greenhouse Malang in 2014 was arranged in a randomized block design consisting of eight treatments, namely: (a) control/without fertilizer; (B) 300 kg/ha (15% N, 15% P 2 O 5 , 15% K 2 O, 10% S); (C) 1500 kg/ha cow manure; (D) 3000 kg/ha cow manure; (E) 5000 kg/ha cow manure; (F) 1500 kg/ha fermented chicken + cow manures; (G) 3000 kg/ha fermented chicken + cow manures; and (H) 5000 kg/ha fermented chicken + cow manures. The results showed that organic fertilizer (cow manure) 5000 kg/ha had higher yields both in the first planting and second planting compared to inorganic fertilizer 300 kg/ha (15% N, 15% P 2 O 5 , 15% K 2 O, 10% S). Keywords: acid soil, cowpea, organic fertilizer, residual fertilizer, soybeanTo cite this article: Kuntyastuty, H. and Muzaiyanah, S. 2017. Effect of organic fertilizer and its residual on cowpea and soybean in acid soils. J. Degrade. Min. Land Manage. 5(1): 987-994,

Morphological Performance of Edamame Applied by Livestock Manure in Acid Dry Land

“…The plant height on the Table 1 indicated that cow and goat manures had better results on edamame in acid dry soils. This results in line with the [18] claimed that amendment with cow manure appropriated to ameliorate the acid soils with applied dose around 5 t ha −1 . [19] informed that 20 t ha −1 of goat manures was comparable to chicken manures with the same dose, even goat manures might be applied in the absence of chicken manures to give better plant growth parameters.…”

Efek Residu Kacang Hijau Pertanaman Pertama pada Pertumbuhan dan Hasil Kacang Tunggak Pertanaman Kedua di Lahan Kering

“…Hal tersebut juga dapat membantu menjaga kesuburan tanah (Babaji et al 2010). Residu 300 kg Phonska/ha atau dengan 3000 kg pupuk kandang sapi/ha (Lestari et al 2018) maupun aplikasi 5000 kg pupuk kandang/ha memberikan hasil tertinggi pada pertanaman kacang tunggak dan residunya pada tanaman kedelai dibandingkan dengan aplikasi 300 kg Phonska/ha (15% N, 15% P2O5, 15% K2O, 10% S) (Kuntyastuti & Muzaiyanah 2017).…”

The effect of tillage systems and dosages of cow manure on weed and soybeans yield (Glycine max, Merrill)

“…Soybean dry weight increased by 31.49% at 35 DAP and 23.02% at 49 DAP with a dosage of 7.5 t cow manure/ha compared to a dosage of 2.5 t cow manure/ha. Kuntyastuty and Muzaiyanah (2017) stated that the application of organic cow manure can replace inorganic fertilizers and increase yields of cowpea and soybeans in acidic soil.…”