|
|
|
|
|
| Chatzistathis,Theocharis; Orfanoudakis,Michail; Alifragis,Dimitrios; Therios,Ioannis. |
| Rooted leafy cuttings of three Greek olive (Olea europaea L.) cultivars (Koroneiki, Kothreiki and Chondrolia Chalkidikis) were grown for six months in three soil types, in an experimental greenhouse, in order to investigate: i) if their root system was colonized by arbuscular mycorrhiza fungus (AMF) genus and, ii) if genotypic differences concerning growth and mineral nutrition of olive plants existed. Gigaspora sp. colonized the root system of the three cultivars studied, while Glomus sp. colonized only the root system of 'Koroneiki'. Furthermore, in most cases root colonization by AMF differed among cultivars and soil types. The maximum root colonization, in all soils, was found in 'Chondrolia Chalkidikis'. In the three soils studied, the ratio shoot dry... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 'Chondrolia Chalkidikis'; 'Koroneiki'; 'Kothreiki'; Root colonization; Soil type. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162013000300007 |
| |
|
|
| Oduma, Okechukwu. |
| Abstract: A research was conducted to examine the effect of soil type and operational speed on the performance of some selected agricultural field machineries in South- East Nigeria. Results revealed that the disc plough had maximum field efficiency of 88.11% at a working speed of 6kmhr-1 in clay-loam soil, while in sandy-clay soil; it recorded maximum field efficiency of 87.98% under the same operational speed (6kmhr-1) and in loamy-sandy soil it obtained maximum field efficiency of 87.55% at the speed of 5kmhr-1. The harrow had maximum field efficiency of 98.54% at operational speed of 9kmhr-1 in sandy-clay soil; in clay-loam soil at a working speed of 8kmhr-1, it recorded maximum field efficiencies of 87.98%, and 87.19% respectively. Results further... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Keywords; Field machineries; Operational speed; Performance; Soil type; South- East Nigeria.. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6111 |
| |
|
|
| Ćirić,Vladimir; Manojlović,Maja; Belić,Milivoj; Nešić,Ljiljana; Šeremešić,Srdan. |
| Aggregate stability is an important factor of the soil functioning. Greater aggregate stability leads to greater soil organic carbon (SOC) preservation, while SOC acts as a key cementing agent in aggregation processes. The objective of this study was to investigate the effects of native vegetation conversion in soil aggregate stability and SOC concentration. The investigation was conducted in the Vojvodina Province, Serbia, in July 2009. Undisturbed soil samples were taken from Haplic Chernozem, Haplic Fluvisol and Gleyic Vertisol, at a depth ranging from 0 to 20 cm. A completely randomized experimental design was used with three replicates. Each soil type was considered under treatments 1) cropland >100 years, 2) native meadow and 3) native... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aggregate stability; Soil organic carbon; Land use change; Soil type; Soil structure. |
| Ano: 2013 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952013000600002 |
| |
|
|
|
