Effect of application of organic and inorganic fertilizer on soybean yield in lowland Vertisols

Abstract

Application of organic fertilizer can maintain and improve physical, chemical, and biological soil fertility and plant productivity. However, the use of manure requires a long time and a relatively large amount to have a positive impact on the soil and plants. In this regard, a study was carried out to evaluate the effect of the application of organic fertilizer and NPK inorganic fertilizer on soybean in lowland Vertisol. The study was conducted in lowland Vertisols in Ngawi and Madiun. The experiment used a randomized block design with three replications, with combination treatments of cow and chicken manure, Santap NM1 and NM2 fertilizer, and Phonska. The soybean seed used in this research was Local Central Java/Sinabung-1036 soybean line. The results showed that in lowland Vertisol of Ngawi which is rich in P element, application of 5,000 kg of cow manure/ha, 3,000 kg of chicken manure/ha, 1,500-2,500 kg/ha Santap NM1 and NM2 fertilizers, and 300 kg of Phonska/ha is not required. The yield of Local Central Java/Sinabung-1036 soybean line reached 1.95 t/ha. The lowland Vertisol of Madiun which has poor P element requires the addition of 5,000 kg of cow manure/ha, 1,500-2,500 kg/ha of Santap NM2 fertilizer, and 150 kg of Phonska/ha to increase soybean yield by 21-27% (0.42-0.55 t/ha). The quality and productivity of soil and crop cultivation in sustainable agriculture can be maintained by alternative recommendations for the use of organic and inorganic fertilizer inputs.

Correlation between Root Nodule Characteristic and Growth Component of Jack Bean Intercropped with Aloe Plant in Calcareous Soil

“…A correlation was also found between the dry weight of plants with root length, stem length, number of leaves, leaf weight, leaf area, and percentage of active root nodule. Meanwhile, Kuntyastuti et al [22] reported the results showed that in the lowlands Vertisol in Ngawi, which is rich in P elements, the addition of 5 tons.ha -1 of cow dung, 3 tons.ha -1 of chicken manure, 1.5 -2.5 tons.ha -1 of SANTAP-NM1 and SANTAP-NM2 fertilizers, and 300 kg.ha -1 Phonska was not necessary. Local Results Central Java / Sinabung-1036 soybean strains reached 1.95 t ha-1.…”

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

“…Organic and inorganic fertilizers combination (semi-organic farming) also the alternative application chosen by farmers to increase crop qualities and productivity. [25] informed in the research that the vertisol (low of P elements) demanded the addition of 5 t ha −1 of cow manures, 1.5-2.5 t ha −1 of Santap NM2 fertilizer, and 0.15 t ha −1 of Phonska to increase soybean yield by 21-27% (0.42-0.55 t ha −1 ). [26] declared that composted cow manure with dose of 8 t ha −1 remarkably increased the number of pods and weights of grains in soybean that was compared to the control without manures application.…”

Implementation and constraints of of the use of farmer’s card in increasing the effectiveness of subsidized fertilizer distribution in Ciamis and Pati District

“…In addition, the government also continues to encourage the efficient use of fertilizers through policies related to supply and distribution, as well as prices through subsidies. Various studies [1,2] reveal that the existence of a fertilizer subsidy policy aims to encourage an increase in agricultural production.…”

“…Based on the results of the study of Suryana et al (2015) [3] stated that currently there are still some problems in the distribution of subsidized fertilizers in the field. These problems include: (1) In terms of planning, the allocation of subsidized fertilizers as outlined in the Regulation of the Minister of Agriculture is much lower than the needs proposed by local governments, so that it often leads to scarcity; (2) There is a moral hazard in the field, due to the large price difference (more than 50%) between the price of subsidized fertilizer and the price of non-subsidized (commercial) fertilizer that is traded in the market; (3) Not all farmers become members of farmer groups, so that farmers' fertilizer needs are not entirely included in the proposed electronic -Definitive Plan for Group Needs (eDPFGN); and (4) Farmer data contained in the eDPFGN is generally not accurate, especially regarding data on land area and cropping patterns.…”