Effect of Bio-phosphate on Increasing the Phosphorus Availability, the Growth and the Yield of Lowland Rice in Ultisol

Effects of Bio-phosphate on Increasing the Phosphorus Availability, the Growth and the Yield of Lowland Rice in Ultisol (Yafizham and M Abubakar): Ultisol soil is low of macro and micro nutrient, pH and base saturation as well as high toxicity of Al and Fe. To increase productivity of ultisols soils, especially availability of P nutrients, the use of bio-phosphate can increase P solubilizing in the soils. The research was conducted in the green house of Agriculture Faculty, the University of Lampung from January to March 2005. A factorial experiment using two factors in a randomized completely block design with five replications was conducted. The first factor was dosages of bio-phosphate (0; 10; 20 g L-1), the second factor was lowland rice cultivar (Ciherang, Sintanur, Cilosari and IR64). The results showed that the availability of N, K and P nutrients in the soil before planting was low. Application of biophosphate increased availability of N, K and P in the soil. Application of 10 g L-1 and 20 g L-1 of bio-phosphate increased root length of lowland rice, there were 13.3% and 36.8%, respectively. Application of 20 g L-1 of biophosphate increased 100 grain weight of lowland rice which were higher 11.4% compared to without any bio-phosphate

Determinants of Production and Income Risks of Rainfed Lowland Farming: A Case Study in Maros Regency, Indonesia

Rainfed lowland farming production is generally lower than irrigated lowland rice due to area differentiation regional features. Rainfed lowland rice farming can only produce rice during the rainy season because lowland rice cannot be planted in the dry season. The purposes of this study are (1) to analyze the risk of production and income of rice farming in rainfed lowland farming and (2) to investigate the factors influencing the risk of rice farming in rainfed lowland farming. Data were collected from 100 respondents of rice farmers in four sub-districts in Maros Regency using the multi-stage cluster random sampling technique. The analysis of production and income risks were performed using multiple linear regression with the heteroscedastic method. The results have shown that rice farming in rainfed lowland farming poses a risk to production and income. The variables that significantly influence the rainfed lowland rice farming are land area, the number of seeds, the amount of urea fertilizer and the amount of pesticide. Farmers are required to manage risk by prioritizing the effectiveness and efficiency production factors as needed. Similarly the government is expected to assist farmers in maintaining the level of rice selling prices

Persepsi Petani Terhadap Teknologi Revolusi Industri 4.0 Pada Usahatani Padi Sawah di Desa Tompasobaru Dua Kecamatan Tompasobaru Kabupaten Minahasa Selatan

This study aims to determine the perception of lowland rice farmers towards technology 4.0 in lowland rice farming in Tompasobaru Dua Village, Tompasobaru District, South Minahasa Regency. Perception indicators of understanding, acceptance, mastery, application and prospects using a Likert scale. This research was conducted from June to July 2022. The data collected in this study is the perception data of rice farmers after participating in the socialization of industrial technology 4.0 in lowland rice farming. Sampling was done by means of purposive sampling as many as 30 samples. The results showed that the perception of lowland rice farmers to technology 4.0 in lowland rice farming was in the good category (perception index 77.66%). This means that rice farmers have a good understanding, acceptance, and mastery of the technology of the industrial revolution 4.0 so that they are expected to be able to apply 4.0 technology independently

Comparative Economic Analysis of Upland and Lowland Rice Production in Izzi Local Government Area of Ebonyi State.

A study on comparative economic analysis of upland and lowland rice production in Izzi Local Government Area was carried out. A total of 112 rice farmers were interviewed (56 from upland rice and 56 from lowland rice) in the study area using multistage random sampling techniques. The result of gross-margin analysis revealed that upland rice is more profitable than lowland rice as justified by 75% and 51% respectively as was calculated from gross-margin. Linear and exponential forms of the four functional form of regression analysis were chosen as the lead equation for socio-economic factors and production factors respectively. From the findings, it was established that upland rice production is more profitable than lowland rice production. The study therefore recommended the provision of capital, input subsidy, market and weather information, strengthening of farmers by disseminating information and assisting them adopt improved packages for rice production as ways to enhance rice production in the area

Capability of APSIM-Oryza to stimulate lowland rice-based farming systems under nitrogen treatments in a tropical climate

Rice is the most important crop in Asia and the staple food for most of the world’s population. Due to the overwhelming importance of this crop, modelling rice-based farming systems will provide valuable help to compare experimental research findings across regions, extrapolate field experimental data to wider environments, develop management recommendations and decision-support systems, explore effects of climate change and adaptation options, and prediction of crop yield. There is an increasing demand for the capability to simulate rice-based cropping systems, especially in Asia. Such a system capability will allow expanded investigation of nitrogen dynamics, crop sequencing, intercropping, crop residue management and soil and water management. Incorporation of the ORYZA2000 rice model(Bouman and van Laar, 2006) into APSIM (Agricultural Production Systems Simulator (APSIM-Oryza) together with recent work on carbon and nitrogen dynamics in transitional flooded/non-flooded systems(Gaydon et al., 2009) has facilitated long-term simulation of lowland rice-based farming systems scenarios. However, the capability of APSIM-Oryza to simulate rice-based crop sequences involving other crops has undergone limited testing to this point and under a variety of crop management practices and cropping systems. In this paper, we detail testing of the APSIM-Oryza simulation model against an experimental dataset involving lowland rice-rice-soybean crop rotation in West Nusa Tenggara Province(NTB) Indonesi

The Marind Tribe’s Behavior in Cultivating Paddy Field in Merauke Regency, Papua Province

The focus of this study was to observe the behavior of the Marind Tribe in cultivating paddy field. The study intended to develop lowland rice by paying attention to the behavior of the Marind Tribe as agribusiness actors. This study aims to analyze the knowledge, attitudes, forms of action of Marind tribe farmers in rice farming and analyze the rice production produced. This research was conducted in Merauke Regency as a center for rice production in the province of Papua. The method used in this study is a survey method with in-depth interview techniques and observations of 120 Marind farmers who work on lowland rice in six districts in Merauke Regency. Data were analyzed using descriptive statistical analysis and inferential statistics.  The results of the study concluded: (1) the knowledge of the Marind Tribe is still in the basic realm of knowing; (2) the Marind Tribe is hesitant to apply the cultivation of lowland rice; (3) the form of actions for planting lowland rice is incomplete; and (4) the level of production of lowland rice produced is very low

COMPARATIVE STUDY OF RICE (OryzasativaL.) CULTIVATION IN POLYBAG TO CULTIVATION IN LOWLAND

Purpose of the study: Rice (Oryza sativa L.) is the leading food consumed by Indonesian people even in Asia. The various innovations in rice cultivation still being developed to increase the yield both in quantity and quality. In general, rice cultivation is planted in the lowland. This research aims to compare the productivity of rice cultivation in a polybag to rice cultivation in the lowland. Methodology: The size of the polybag that used in the experiment is 40x40 cm with space 50 cm of each other. The experiment was conducted in Nganjuk, East Java, Indonesia. The variables studied are rice yield and rice varieties. The varieties used are Ciherang and Sertani 12. Main Findings: The result showed that rice production yield includes the number of filled grains, total grain, and panicle number in polybag more than in lowland. Rice cultivation produces 2 kg/m2 in a polybag and 1 kg/m2 in the lowland. The panicle number of rice in polybag is more than in lowland, i.e., 12 in a polybag and 6 in the lowland. For the rice variety, Ciherang and Sertani 12 have the same yield in a polybag. It is 2 kg/m2. Applications of this study: The rice cultivation in polybags has an easy cultivation system and suitable for urban areas where agricultural land is limited. Besides, it can be the solution for decreasing agricultural land from time to time. Novelty/Originality of this study: The novelty of this research is the use of polybags as the media of rice cultivation, which is not commonly done in farming