Fertilizer with different ratios of nitrogen (N) to phosphorus (P) can influence crop plant performance and defense against herbivores. Spodoptera exigua is an important agricultural pest that has caused serious economic loss, especially in recent decades. In the present study, we explored effects of different intensities and durations of S. exigua herbivory on host plant biomass and on S. exig...

This paper analyses the rural food sector of the Indian Republic in an intertemporal growth context. A model is developed which includes the government's conflict between its poverty reducing attempts through public distribution of food, subsidized issue and support food prices and long term developmental goals. The ARDL cointegration procedure for mixed order dynamic processes identifies the m...

While the current food security is fulfilled in China, the substantial nitrogen fertilizer use has caused many far-reaching environmental problems. Therefore, reforming the fertilizer management is the key toward sustainable agriculture for 1.3 billion people. The present study is intended to test the applicability of a nitrogen fertilizer management approach for corn production developed in U....

Energy poverty can be understood as the inability of a household to secure a socially and materially necessitated level of energy services in the home. While the condition is widespread across Europe, its spatial and social distribution is highly uneven. In this paper, the existence of a geographical energy poverty divide in the European Union (EU) provides a starting point for conceptualizing ...

It is a pleasure to be invited to discuss this rich paper by Jeffrey Frankel and Andrew Rose. After the events of the past few years, with a range of commodity prices exhibiting great volatility, it is not hard to motivate Frankel and Rose’s choice of topic, seen from either a longor medium-term perspective. The authors use annual data, mainly in a panel context, to examine the relationship bet...

This study aims to analyze the development of input and output prices, translog profit function, elasticity demand for lowland rice farming inputs in Jambi Province. The function model used is Transcendental Logarithmic (Translog) function. results show that · prices has increased significantly every year. production factors affect profitability are price seeds, TSP fertilizer, other chemical f...

Continuous use of chemical fertilizers has deteriorated the soil health and made the use of organic matter essential to restore the soil health and productivity. The availability of organic matter is again a problem because of the increase in area under crop cultivation. Thus recycling of the available organic wastes from the existing gardens especially in perennial crops gets more importance. ...

Fertilizer prices have risen worldwide since the end of 2021. In this context, value organic fertilizers has also changed from farmers’ perspective. Hence, an open question about their arises with increased demand for fertilizers. This must be addressed individually each farm. a linear optimization model is applied. The can adapted to farm conditions and provides mineral as plant nutrition vari...

In the county of Stockholm, subsidized orthodontic care is offered to roughly 25% of persons under the age of 19. Stockholm County Council has signed contracts with experienced orthodontists (consultants) to carry the responsibility of screening and offering subsidized treatment to those having the most urgent treatment need. For this purpose the orthodontist is free to use whatever yardstick h...