scholarly journals PERFORMANCE OF ‘NANICÃO JANGADA’ BANANA PLANTS INTERCROPPED WITH WINTER COVER CROPS

2016 ◽  
Vol 38 (4) ◽  
Author(s):  
RICARDO SFEIR DE AGUIAR ◽  
PAULO VICENTE CONTADOR ZACCHEO ◽  
CARMEN SILVIA VIEIRA JANEIRO NEVES ◽  
MARCELO SFEIR DE AGUIAR ◽  
FERNANDO TEIXEIRA DE OLIVEIRA
Keyword(s):  
Cover Crops ◽  
Crop Residues ◽  
Production Systems ◽  
Soil Management ◽  
Dry Mass ◽  
Vegetative Development ◽  
Chicken Litter ◽  
Winter Cover ◽  
Winter Cover Crops

ABSTRACT The use of cover crops species may be an important strategy in the pursuit of sustainability of agroecosystems, considering benefits to soil, such as improvements of physical and chemical characteristics, and weed control. The objective of this study was to evaluate the effect of winter cover crops and other soil managements on chemical soil properties, on the cycle, on the production of the first cycle and on the fruit quality of banana cv. Nanicão Jangada in Andirá – PR, Brazil. The experiment was carried out in a commercial. Planting of banana suckers from the grower area occurred in the first half of March 2011, with a spacing of 2.40 m between rows and 1.90 m between plants. The experiment was designed in randomized blocks with four replications and six plants per plot. The six treatments were: black oat (Avenastrigosa Schreb), forage turnip (Raphanus sativus L. var. oleiferus), consortium of black oat and forage turnip, chicken litter, residues of banana plants, and bare ground. The evaluations were vegetative development and life cycle of banana plants, yield and quality of fruits, soil chemical characterstics, and fresh and dry mass of green manures. The results were submitted to ANOVA (F Test), and Tukey test at 5 % probability. Black oat and black oat with forage turnip consortium were superior in biomass production. Systems of soil management had no effect on the variables, except in the periods between planting and flowering and between planting and harvest, which were shorter in the treatment of soil management with crop residues, longer in the treatment with forage turnip, and intermediate in the other treatments.

scholarly journals Winter cover crops to reduce herbicide inputs in maize crops

2017 ◽  
Vol 70 ◽  
pp. 171-178
Author(s):  
M.R. Trolove ◽  
T.K. James ◽  
A.W. Holmes ◽  
M.D. Parker ◽  
S.J. McDougall ◽  
...  
Keyword(s):  
Cover Crops ◽  
Cover Crop ◽  
Crop Residues ◽  
Lolium Multiflorum ◽  
Ground Cover ◽  
Environmental Benefits ◽  
Canopy Closure ◽  
Winter Cover ◽  
Winter Cover Crops ◽  
Winter Fallow

Winter cover crops potentially have a number of positive production and environmental benefits on subsequent maize (Zea mays) crops. A field study was undertaken in 2016/17 to evaluate the effects of winter cover crop residues on the emergence and growth of weeds, required herbicide inputs, and yields of maize in comparison to a winter fallow. Weed ground cover at maize canopy closure was 81—85% less than the winter fallow in plots with ryegrass (Lolium multiflorum), oats (Avena sativa) and gland clover (Trifolium glanduliferum) residues and 57% less in faba bean (Vicia faba). Ryegrass and oats residues maintained ground coverage of >70%, while clover had only 6% at canopy closure, but suppressed weeds similarly. In the absence of herbicides maize silage yields in plots with cover crop residues were similar to those in herbicide treatments, although maize establishment and growth was slower in oats and ryegrass.

scholarly journals Soybean Yields and Biomass Production of Winter Cover Crops in the Southwest of Parana – Brazil

2019 ◽  
Vol 12 (5) ◽  
pp. 40 ◽  
Author(s):  
Amarildo Antonio Tessaro ◽  
Mauricio Antonio Pereira ◽  
Ademir Calegari ◽  
Sideney Becker Onofre ◽  
Ricardo Ralisch
Keyword(s):  
Cover Crops ◽  
Dry Mass ◽  
White Lupin ◽  
Coverage Area ◽  
Average Value ◽  
Tukey Test ◽  
Green Mass ◽  
Winter Cover ◽  
Winter Cover Crops ◽  
Management And Conservation

The use of winter cover crops is an important practice for the management and conservation of soil and water in southern Brazil. The objective of this work was to evaluate the accumulation of green mass and dry mass in the aerial part of winter cover crops in monocropping and intercropping in southwestern Paraná, in the years 2016 and 2017. Randomized blocks were used as experimental design with a subdivided plot scheme of 50 m² with five replications. The cover crops used in monocropping were black oats and wheat, while for the intercropping black oats + turnips + rye + white lupin (AP+NF+C+TB), black oats + turnips (AP+NF) and black oats + turnips + rye + vetches + white lupin + buckwheat (AP+NF+C+E+TB+TM) were used. The data were subjected to analysis of variance and the means were compared by the Tukey test at 5 % probability. The intercrop composed of black oats + turnips + rye + vetches + white lupin + buckwheat had a higher production of green mass, with an average value of 50.880 kg ha-1. For the production of dry mass, the monocrop of black oats had higher yields, with an average value of 5.168 kg ha-1. The highest yields were obtained in the coverage area with black oats, turnips, rye, vetches, white lupin and buckwheat, presenting a yield in 2017 of 4.487 kg ha-1.

scholarly journals Detecting Winter Cover Crops and Crop Residues in the Midwest US Using Machine Learning Classification of Thermal and Optical Imagery

2021 ◽  
Vol 13 (10) ◽  
pp. 1998
Author(s):  
Mallory Liebl Barnes ◽  
Landon Yoder ◽  
Mahsa Khodaee
Keyword(s):  
Remote Sensing ◽  
Cover Crops ◽  
Management Practices ◽  
Crop Residues ◽  
Regional Scale ◽  
Climate Mitigation ◽  
Near Infrared Reflectance ◽  
Machine Learning Classification ◽  
Winter Cover ◽  
Winter Cover Crops

Cover crops are an increasingly popular practice to improve agroecosystem resilience to climate change, pests, and other stressors. Despite their importance for climate mitigation and soil health, there remains an urgent need for methods that link winter cover crops with regional-scale climate mitigation and adaptation potential. Remote sensing is ideally suited to provide these linkages, yet, cover cropping has not been analyzed extensively in remote sensing research. Methods used for remote sensing of crops from satellites traditionally leverage the difference between visible and near-infrared reflectance to isolate the signal of photosynthetically active vegetation. However, using traditional greenness indices like the Normalized Difference Vegetation Index (NDVI) for remotely sensing winter vegetation, such as winter cover crops, is challenging because vegetation reflectance signals are often confounded with reflectance of bare soil and crop residues. Here, we present new and established methods of detecting winter cover crops using remote sensing observations. We find that remote sensing methods that incorporate thermal data in addition to traditional reflectance metrics are best able to distinguish between winter farm management practices. We conclude by addressing the potential of existing and upcoming hyperspectral and thermal missions to further assess agroecosystem function in the context of global change.

Effect of winter cover crops on water soil storage, total forage production, and quality of silage corn

2021 ◽  
Vol 130 ◽  
pp. 126366
Author(s):  
Svetlana Vujić ◽  
Djordje Krstić ◽  
Ksenija Mačkić ◽  
Ranko Čabilovski ◽  
Zoran Radanović ◽  
...  
Keyword(s):  
Cover Crops ◽  
Forage Production ◽  
Soil Storage ◽  
Winter Cover ◽  
Winter Cover Crops

Effects of Cover Crops and Tillage on Sweet Corn Production

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 476d-476
Author(s):  
Gary R. Cline ◽  
Anthony F. Silvernail
Keyword(s):  
Cover Crops ◽  
Sweet Corn ◽  
N Fertilization ◽  
Winter Rye ◽  
No Tillage ◽  
Corn Production ◽  
Total N ◽  
No Till ◽  
Winter Cover ◽  
Winter Cover Crops

A split-plot factorial experiment examined effects of tillage and winter cover crops on sweet corn in 1997. Main plots received tillage or no tillage. Cover crops consisted of hairy vetch, winter rye, or a mix, and N treatments consisted of plus or minus N fertilization. Following watermelon not receiving inorganic N, vetch, and mix cover cropsproduced total N yields of ≈90 kg/ha that were more than four times greater than those obtained with rye. However, vetch dry weight yields (2.7 mg/ha) were only about 60% of those obtained in previous years due to winter kill. Following rye winter cover crops, addition of ammonium nitrate to corn greatly increased (P < 0.05) corn yields and foliar N concentrations compared to treatments not receiving N. Following vetch, corn yields obtained in tilled treatments without N fertilization equaled those obtained with N fertilization. However, yields obtained from unfertilized no-till treatments were significantly (P < 0.05) lower than yields of N-fertilized treatments. Available soil N was significantly (P < 0.05) greater following vetch compared to rye after corn planting. No significant effects of tillage on sweet corn plant densities or yields were detected. It was concluded that no-tillage sweet corn was successful, and N fixed by vetch was able to sustain sweet corn production in tilled treatments but not in no-till treatments.In previous years normal, higher-yielding vetch cover crops were able to sustain sweet corn in both tilled and no-till treatments.

Response of Winter Cover Crops to Soil Compaction

1958 ◽  
Vol 22 (2) ◽  
pp. 181-184 ◽  
Author(s):  
W. J. Flocker ◽  
J. A. Vomocil ◽  
M. T. Vittum
Keyword(s):  
Cover Crops ◽  
Soil Compaction ◽  
Winter Cover ◽  
Winter Cover Crops

scholarly journals A 3-year field study to assess winter cover crops as nitrogen sources for an organic maize crop in Mediterranean Portugal

2021 ◽  
Vol 128 ◽  
pp. 126302
Author(s):  
Adelaide Perdigão ◽  
José L.S. Pereira ◽  
Nuno Moreira ◽  
Henrique Trindade ◽  
João Coutinho
Keyword(s):  
Field Study ◽  
Cover Crops ◽  
Nitrogen Sources ◽  
Maize Crop ◽  
Winter Cover ◽  
Winter Cover Crops
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