Results 11 to 20 of about 521,788 (293)

Changes in the Soil Microbial Hydrolytic Activity and the Content of Organic Carbon and Total Nitrogen by Growing Spring Barley Undersown with Red Clover in Different Farming Systems [PDF]

open access: yes, 2019
The experiments were carried out during 2012–2017. There were 5 crops in rotation: Red clover, winter wheat, pea, potato and barley undersown (us) with red clover.
Alaru, Maarika   +7 more
core   +1 more source

Assessment of soil erosion in olive orchards (Olea europaea L.) under cover crops management systems in the tropical region of Brazil [PDF]

open access: yes, 2020
In the tropics, water erosion is one of the most important factors leading to the degradation and deterioration of agricultural land. Olive orchards have a low canopy coverage, especially during the first years after planting, due to the low density of ...
Beniaich, Adnane   +7 more
core   +2 more sources

Shifts in the bacterial community composition along deep soil profiles in monospecific and mixed stands of Eucalyptus grandis and Acacia mangium [PDF]

open access: yes, 2017
Our knowledge of the rhizosphere bacterial communities in deep soils and the role of Eucalyptus and Acacia on the structure of these communities remains very limited.
Avelino Maia de Andrade, Pedro   +7 more
core   +2 more sources

The soil microbial hydrolytic activity, content of nitrogen and organic carbon were enhanced by organic farming management using cover crops and composts in potato cultivation [PDF]

open access: yes, 2019
Nowadays, in sustainable agriculture growing winter cover crops and using organic manure have been widely implemented to improve soil quality which leads to increase of microbial activity.
Alaru, Maarika   +8 more
core   +1 more source

Triterpene saponins of Trigonella monspeliaca L.

open access: yesActa Societatis Botanicorum Poloniae, 2014
The triterpene saponin fraction was isolated from Trigonella monspeliaca tops. It consisted of ten saponosides, three of which were determined to be medicagenic acid glycosides, the other seven - soyasapogenol glucosides.
Wiesław Oleszek   +3 more
doaj   +1 more source

Studies in Soil Cultivation.: V. Rotary Cultivation

open access: yesThe Journal of Agricultural Science, 1930
Experiments extending over the four years, 1926–9 inclusive, have been carried out on a heavy and stony loam soil to compare rotary cultivation with normal methods for the production of a seed-bed. The work has been confined to spring-sown crops—swedes and barley—and to spring cultivations.Rotary cultivation gives earlier and better germination of seed,
Keen, B. A.   +1 more
openaire   +1 more source

The occurrence of isoflavones in some domestic clover varieties

open access: yesActa Agrobotanica, 2013
Preliminary investigations were carried out in order to ascertain the occurrence of isoflavonoid compounds characterized by estrogenic activity, in five domestic species of clover: Trifolium pratense L., T. repens L., T. incarnatum L., T.
Marian Jurzysta   +3 more
doaj   +1 more source

The activity of ascorbic acid and catechol oxidase, the rate of photosynthesis and respiration as related to plant organs, stage of development and copper supply

open access: yesActa Agrobotanica, 2015
Some experiments were performed to investigate the physiological role of copper in oat and sunflower and to recognize some effects of copper deficiency.
St. Łyszcz   +3 more
doaj   +1 more source

Effective soil extraction method for cultivating previously uncultured soil bacteria [PDF]

open access: yesApplied and Environmental Microbiology, 2018
ABSTRACTHere, a new medium named as intensive soil extract medium (ISEM) based on new soil extract (NSE) using 80% ethanol was used to efficiently isolate previously uncultured bacteria and new taxonomic candidates, which accounted for 49% and 55% of the total isolates examined (n=258), respectively.
Manh Nguyen, Tuan   +5 more
openaire   +2 more sources

Observations on the development of plants

open access: yesActa Societatis Botanicorum Poloniae, 2015
The influence of light intensity and daylength on four short-day species of Chenopodium was analysed. The following species were tested: Ch. ficifolium, Ch. glaucum, Ch. rubrum and Ch. hybridum. Under short day, generative initiation was accelerated, the
A. Listowski   +2 more
doaj   +1 more source

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