نتایج جستجو برای: in sustainable agriculture

تعداد نتایج: 17008038  

2010
Eric Keys

Worldwide the search is on for sustainable solutions to the competing needs for forest conservation and agricultural development. A strategy with contemporary salience arises in intensive, sedentarized agriculture that can protect forests and enhance livelihoods for forest dwellers. This paper investigates why intensive agriculture does not limit deforestation in southeastern Mexico’s Calakmul ...

2015
Andrew J. Tanentzap Anthony Lamb Susan Walker Andrew Farmer

Agriculture dominates the planet. Yet it has many environmental costs that are unsustainable, especially as global food demand rises. Here, we evaluate ways in which different parts of the world are succeeding in their attempts to resolve conflict between agriculture and wild nature. We envision that coordinated global action in conserving land most sensitive to agricultural activities and poli...

2015
Reshu Yadav Himanshu Joshi S. K. Tripathi

A pilot field study was conducted at the Jagjeetpur Municipal Sewage treatment plant situated in the Haridwar town in Uttarakhand state, India. The objectives of the present study were to study the effect of treated wastewater on the production of various paddy varieties (Sharbati, PR-114, PB-1, Menaka, PB1121 and PB 1509) and the emission of GHG gases (CO2, CH4 and N2O) as compared to the same...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
باب اله حیاتی داود مومنی چلکی شاپور ظریفیان مهدی جلالیان

the objective of the present research was to investigate the agricultural jihad organization (ajo) specialists' attitudes towards sustainable agriculture concepts in the east azerbaijan and to find out about its determinants. a descriptive-correlational method was used in the study. the sampling population of the study consisted of all the ajo specialists in east azerbaijan (n=200). a samp...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2008
J R Witcombe P A Hollington C J Howarth S Reader K A Steele

Using cereal crops as examples, we review the breeding for tolerance to the abiotic stresses of low nitrogen, drought, salinity and aluminium toxicity. All are already important abiotic stress factors that cause large and widespread yield reductions. Drought will increase in importance with climate change, the area of irrigated land that is salinized continues to increase, and the cost of inorg...

2003
D. Atkinson

Recent discussions of the way ahead for agriculture have tended to centre around the frequently incompatible claims of the proponents of technological agriculture, now further developed through inputs from biotechnology , and ecological agriculture, of which organic farming is the best known example.There is a need for the claims made for these two versions to be put into a broader scientific a...

2010

The arbuscular mycorrhizal (AM) fungi, in concert with other soil dwelling microorganisms such as the so-called “plant growth promoting rhizobacteria”, play a pivotal role for natural soil fertility and stability, hence, for sustainable crop production. Appropriate management of the AM fungal community is crucial, especially in the tropics where the cultivated soils are notoriously fragile and ...

2008

The environmental impact of agriculture cannot be ignored. In many countries, as much as 70 per cent of the land area is in agricultural use. Over a third of the global agricultural land area is in high-intensity, continuous cropping systems that use high levels of agrochemicals and reshape land and waterways. The rest is under such a farming system that uses far fewer inputs, but requires rela...

2015
George F. Antonious

Sustainable Agriculture satisfies human food and fiber needs, makes the most efficient use of on-farm resources and integrates natural biological cycles, enhances the quality of life for farmers and society as a whole, and sustains the economic viability of farm operations. A farm that is able to produce continuously, yet has negative effects on environmental quality elsewhere, does not support...

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