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At least 325 records · Page 18Linked to original sources
PubMed2004

Azospirillum-plant relationships: physiological, molecular, agricultural, and environmental advances (1997-2003).

This review presents a critical and comprehensive documentation and analysis of the developments in agricultural, environmental, molecular, and physiological studies related to Azospirillum cells, and to Azospirillum interactions with plants, based solely on information published between 1997 and 2003. It was designed as an update of previous reviews (Bashan and Levanony 1990; Bashan and Holguin 1997a), with a similar scope of interest. Apart from an update and critical analysis of the current knowledge, this review focuses on the central issues of Azospirillum research today, such as, (i) physiological and molecular studies as a general model for rhizosphere bacteria; (ii) co-inoculation with other microorganisms; (iii) hormonal studies and re-consideration of the nitrogen contribution by the bacteria under specific environmental conditions; (iv) proposed Azospirillum as a non-specific plant-growth-promoting bacterium; (v) re-introduction of the "Additive Hypothesis," which suggests involvement of multiple mechanisms employed by the bacteria to affect plant growth; (vi) comment on the less researched areas, such as inoculant and pesticide research; and (vii) proposes possible avenues for the exploitation of this bacterium in environmental areas other than agriculture.

Agriculture↗
PubMed2002

Development and implementation of the Norwegian monitoring programme for agricultural landscapes.

This paper describes the development and implementation of the Norwegian monitoring programme for agricultural landscapes--the '3Q programme'. The main objective of the scheme is to indicate development trends in the agricultural landscape, and their consequences for spatial structure, biodiversity, cultural heritage and accessibility. The monitoring programme aims to give policy feedback and provide data to fulfill international reporting requirements. This paper describes the background to the programme and reasons behind the choice of methods. Results are presented to show the accuracy of the methods employed and the range of indicator values recorded in the programme. Strengths and limitations of the monitoring programme are discussed, and potential future improvements and developments are outlined. Although there remains a potential for methodological improvement, we stress the importance of establishing a baseline to enable the detection of development trends in a rapidly changing environment.

Agriculture↗
PubMedDate not supplied

Regional variations in the female age at marriage in India: an analysis by agro-climatic zones.

"The effect of agro-climatic factors on female age at marriage [in India] is studied by carrying out areal analysis of the 1981 Census data. The study found a close association between agricultural and climatic conditions in an area and corresponding female age at marriage. In general, women in Himalayan regions and coastal areas have higher age at marriage than most hinterland regions. Rainfall, altitude, forest area, land availability and productivity are observed to be associated with female age at marriage. In addition, female age at marriage in rural areas is found to be more sensitive to the agro-climatic conditions. It is hypothesized that with socio-economic and technological development, the agricultural and climatic factors are losing their grip on female age at marriage in India."

Agriculture↗