Interactive effects of conservation tillage, residue management, and nitrogen fertilizer application on soil properties under maize-cotton rotation system on highly weathered soils of West Africa

2020 ◽  
Vol 196 ◽  
pp. 104473 ◽  
Author(s):  
Eeusha Nafi ◽  
Heidi Webber ◽  
Isaac Danso ◽  
Jesse B. Naab ◽  
Michael Frei ◽  
...  
Keyword(s):  
West Africa ◽  
Soil Properties ◽  
Nitrogen Fertilizer ◽  
Conservation Tillage ◽  
Fertilizer Application ◽  
Residue Management ◽  
Interactive Effects ◽  
Rotation System ◽  
Weathered Soils ◽  
Highly Weathered Soils

scholarly journals A carbon-sink in a sacred forest: Biologically-driven calcite formation in highly weathered soils in Northern Togo (West Africa)

CATENA ◽  
2021 ◽  
Vol 198 ◽  
pp. 105027
Author(s):  
Hafeez Ur Rehman ◽  
Rosa M. Poch ◽  
Fabio Scarciglia ◽  
Michele L. Francis
Keyword(s):  
West Africa ◽  
Carbon Sink ◽  
Sacred Forest ◽  
Weathered Soils ◽  
Highly Weathered Soils

Sulphur and nitrogen nutrition and their interactive effects on Dothistroma infection in Pinusradiata

1986 ◽  
Vol 16 (5) ◽  
pp. 1055-1062 ◽  
Author(s):  
Marcia J. Lambert
Keyword(s):  
Nitrogen Fertilizer ◽  
Nitrogen Nutrition ◽  
Fertilizer Application ◽  
Positive Influence ◽  
Interactive Effects ◽  
Strong Positive Correlation ◽  
Infection Level ◽  
Foliar Nutrition ◽  
Volume Increment ◽  
Negative Effect

Nitrogen and sulphur fertilizers were applied to a 4-year-old Pinusradiata plantation in northern New South Wales and the results were monitored for 7 years. The aim was to study the effects of sulphur and nitrogen nutrition on tree growth and their interactions on Dothistroma infection. Sulphur (300 kg S ha−1), applied as gypsum, elevated foliage sulphate sulphur levels for up to 7 years after treatment, but no direct effects on growth were noted. The low nitrogen fertilizer level (100 kg N ha−1) had a positive influence on volume increment, while the high nitrogen fertilizer application (400 kg N ha−1) significantly depressed volume increment. This latter negative effect was attributed to induced sulphur and phosphorus deficiencies. Sulphur deficiency resulted in highly increased arginine concentrations in current foliage and there was a strong positive correlation between arginine concentration and tree infection level of Dothistroma needle cast fungus, the highest levels of infection being in the nitrogen-treated plots. Relationships between foliar nutrition and foliar fungal infection are discussed.

Conservation tillage and residue management improves soil properties under a upland rice–rapeseed system in the subtropical eastern Himalayas

2020 ◽  
Vol 31 (14) ◽  
pp. 1775-1791 ◽  
Author(s):  
Anup Das ◽  
Jayanta Layek ◽  
Ramkrushna Gandhiji Idapuganti ◽  
Savita Basavaraj ◽  
Rattan Lal ◽  
...  
Keyword(s):  
Soil Properties ◽  
Upland Rice ◽  
Conservation Tillage ◽  
Residue Management ◽  
Eastern Himalayas

Effect of rotation system and N fertilizer on barley and vetch grown in various crop combinations and cycle lengths

2004 ◽  
Vol 142 (1) ◽  
pp. 41-48 ◽  
Author(s):  
I. PAPASTYLIANOU
Keyword(s):  
Nitrogen Fertilizer ◽  
Fertilizer Application ◽  
N Fertilizer ◽  
Central Plane ◽  
Nitrogen Application ◽  
Experimental Site ◽  
Rotation System ◽  
Average Rainfall ◽  
Cycle Lengths ◽  
Barley Grains

Under rainfed Mediterranean conditions the dominant crops are cereals and legumes, with the most common crops being barley (Hordeum vulgare) and vetch (Vicia sativa). These two species are grown in rotation, where the cycle length depends on the productivity and the value of the products in the market. In order to study the productivity of cereals and legumes growing in various rotation combinations, an experiment was conducted during the 1982–2000 period, at Athalassa. The experimental site had a calcareous soil and is located in the central plane of Cyprus. The average rainfall is 250 mm per year. The rotation treatments tested were: (a) continuous barley, (b) continuous vetch, (c) vetch–barley, (d) vetch–barley–barley, (e) vetch–vetch–barley–barley and (f) vetch–vetch–vetch–barley–barley. Barley plots were equally divided to accommodate two rates of N fertilizer (0 and 60 kg N/ha) which were applied at seeding. Production of both vetch and barley was lower in monocultures than when the two species were grown in rotation. Vetch yield was similar in all rotations, irrespective of the position in the cycle. Productivity of barley was increased by nitrogen application only when grown as a second barley after vetch. However, in years with low productivity due to the rainfall amount and distribution, barley did not respond to nitrogen application. The first crop of barley after vetch gave maximum production without any nitrogen fertilizer application. Nitrogen fertilizer had a decreasing effect on the size and weight of barley grains. These results enable the farmers to select any of the rotation systems studied, based on the economics of the two species, without risking productivity. Nitrogen fertilizer should be applied only to the second crop after vetch in years with high rainfall.

BARLEY AND VETCH YIELDS FROM DRYLAND ROTATIONS WITH VARYING TILLAGE AND RESIDUE MANAGEMENT UNDER MEDITERRANEAN CONDITIONS

2008 ◽  
Vol 44 (4) ◽  
pp. 559-570 ◽  
Author(s):  
M. PALA ◽  
J. RYAN ◽  
J. DIEKMANN ◽  
M. SINGH
Keyword(s):  
Crop Yields ◽  
Conservation Tillage ◽  
Cropping Systems ◽  
Middle Eastern ◽  
Residue Management ◽  
Barley Straw ◽  
Rotation System ◽  
Compost Application ◽  
Mouldboard Plough ◽  
On Farm

SUMMARYWith increasing land-use pressure in semi-arid, dryland Middle Eastern agriculture, fallow-based cereal production has given way to cropping intensification, including legume-based rotations along with conservation tillage and on-farm straw disposal. Such agronomic developments can only be biologically and economically assessed in multi-year trials. Thus, this 10-year study examined the influence of tillage systems (conventional and shallow or conservation) and variable stubble management, including compost application, on yields of barley and vetch grown in rotation. Barley yielded higher with compost applied every two or four years than with burning or soil-incorporating the straw and stubble. Barley straw and grain yields were generally higher with the mouldboard plough. Similarly with vetch, treatments involving compost application yielded significantly higher than burning or incorporating the straw and stubble. Despite yearly differences between crop yields, the pattern of treatment differences was consistent. Thus, the cereal–vetch rotation system is sustainable, while excess straw could be used as compost with benefit to the crop. Though there was no clear advantage of the shallow conservation-type tillage, the energy costs are less, thus indicating its possible advantage over conventional deep tillage in such rotational cropping systems

Influence of a BactoFil microbiological preparation on the intensity of infection by Rhizoctonia solani and the effects on sugar beet yield and quality

2012 ◽  
pp. 102-109
Author(s):  
Suzana Kristek ◽  
Andrija Kristek ◽  
Dragana Kocevski ◽  
Antonija K. Jankovi ◽  
Dražen Juriši
Keyword(s):  
Sugar Beet ◽  
Rhizoctonia Solani ◽  
Nitrogen Fertilizer ◽  
Soil Analysis ◽  
Block Design ◽  
Sugar Content ◽  
Pathogenic Fungi ◽  
Fertilizer Application ◽  
Beet Root ◽  
Set Up

The experiment was set up on two types of the soil: Mollic Gleysols (FAO, 1998) and Eutric Cambisols where the presence of pathogenic fungi – sugar beet root decay agent – Rhizoctonia solani has been detected since 2005. In a two year study (2008, 2009), the experiment was set up by completely randomized block design in 4 repetitions and 16 different variants. Two beet varieties, Belinda, sensitive to pathogenic fungi R. solani, and Laetitia, tolerant to pathogenic fungi R. solani), were grown. The microbiological preparation BactoFil was applied in different amounts in autumn and spring. In addition, the nitrogen fertilizer application, based on the results of soil analysis, was varied. The following parameters were tested: amount of infected and decayed plants, root yield, sugar content, sugar in molasses and sugar yield. The best results were obtained by applying the microbiological preparation BactoFil, and by 30% reduced nitrogen fertilizer application. Preparation dosage and time of application depended on soil properties.

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