scholarly journals Impact of an Introduced Forage Legume and Grazing on Soil Fertility in Native Pastures of the Humid Tropics of Mexico

10.5772/28523 ◽  
2012 ◽  
Author(s):  
Braulio Valles-de la Mora ◽  
Epigmenio Castillo-Gallegos ◽  
Jess Jarillo-Rodrguez ◽  
Eliazar Ocaa-Zavalet
Keyword(s):  
Soil Fertility ◽  
Humid Tropics ◽  
Forage Legume ◽  
Native Pastures

scholarly journals Soil Management for the Establishment of the Forage Legume Arachis pintoi as a Mean to Improve Soil Fertility of Native Pastures of Mexico

10.5772/53318 ◽  
2012 ◽  
Author(s):  
Braulio Valles-de la Mora ◽  
Epigmenio Castillo-Gallegos ◽  
Jesus Jarillo- ◽  
Eliazar Ocana-Zavalet
Keyword(s):  
Soil Fertility ◽  
Soil Management ◽  
Forage Legume ◽  
Arachis Pintoi ◽  
Native Pastures

Tackling black leaf streak disease and soil fertility constraints to enable the expansion of plantain production to grassland in the humid tropics

2012 ◽  
Vol 58 (2) ◽  
pp. 175-181 ◽  
Author(s):  
Lindsey Norgrove ◽  
J. Roberto Tueche ◽  
Kim S. Jacobsen ◽  
Alphonse Nkakwa Attey ◽  
Keith Holmes
Keyword(s):  
Soil Fertility ◽  
Humid Tropics ◽  
Black Leaf Streak ◽  
Black Leaf Streak Disease

Trees in Alley Cropping: Competitors or Soil Improvers?

1994 ◽  
Vol 23 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Jeremy P. Haggar
Keyword(s):  
Soil Fertility ◽  
Agricultural Production ◽  
Crop Production ◽  
Alley Cropping ◽  
Cropping Systems ◽  
Agroforestry System ◽  
Humid Tropics ◽  
Substantial Evidence ◽  
Soil Improvers ◽  
Improved Design

Agroforestry has a high potential to sustain agricultural production in the humid tropics. One specific type of agroforestry, alley cropping, has received much attention as a means of producing staple food crops within an agroforestry system. There is now substantial evidence that alley cropping maintains soil fertility above levels found in pure annual cropping systems. Nevertheless, competition between the trees and crops can significantly reduce yields by the crop. A model is presented of how the balance between the improved soil fertility in alley cropping and competition from the trees determines the final crop performance. Better understanding of the factors that determine crop yield will enable improved design and management of alley cropping systems, and may allow alley cropping to become a more reliable means of improving crop production.

Dry-season Legume Forages to Follow Paddy Rice in N. E. Thailand. II. Soil Fertility and Planting Methods

1980 ◽  
Vol 16 (1) ◽  
pp. 67-73 ◽  
Author(s):  
H. M. Shelton
Keyword(s):  
Soil Fertility ◽  
Field Experiment ◽  
Bulk Density ◽  
Dry Matter ◽  
Dry Season ◽  
Forage Legume ◽  
Planting Methods ◽  
Matter Production ◽  
Yield Responses ◽  
S Application

SUMMARYResults clearly demonstrate that Crotalaria juncea (sunnhemp) is well adapted to the dry season paddy environment; peak dry matter production was 3170 kg ha−1 in a field experiment with rows 30 cm apart and 100 kg−1 ha of seed. A pot experiment gave yield responses of 179 and 16% to P and S application respectively but there was no response to fertilizer in the field. Cultivation increased DM production in one experiment from 86 to 1590 kg−1 ha, attributed to a reduction in bulk density from 1·65 to 1·19 g cm−3. This effect was not fully substantiated in a second experiment on a coarser soil, where good DM production of sunnhemp was achieved even on broadcast uncultivated plots. The toxicological implications of using sunnhemp as a forage legume are briefly discussed.

K-MEANS CLUSTERING ALGORITHM BASED CLASSIFICATION OF SOIL FERTILITY IN NORTH WEST NIGERIA

2020 ◽  
Vol 4 (2) ◽  
pp. 780-787
Author(s):  
Ibrahim Hassan Hayatu ◽  
Abdullahi Mohammed ◽  
Barroon Ahmad Isma’eel ◽  
Sahabi Yusuf Ali
Keyword(s):  
Soil Fertility ◽  
Crop Yield ◽  
Clustering Algorithm ◽  
Soil Samples ◽  
North West ◽  
R Programming ◽  
Available Information ◽  
Northwest Region ◽  
The Relationship

Soil fertility determines a plant's development process that guarantees food sufficiency and the security of lives and properties through bumper harvests. The fertility of soil varies according to regions, thereby determining the type of crops to be planted. However, there is no repository or any source of information about the fertility of the soil in any region in Nigeria especially the Northwest of the country. The only available information is soil samples with their attributes which gives little or no information to the average farmer. This has affected crop yield in all the regions, more particularly the Northwest region, thus resulting in lower food production.  Therefore, this study is aimed at classifying soil data based on their fertility in the Northwest region of Nigeria using R programming. Data were obtained from the department of soil science from Ahmadu Bello University, Zaria. The data contain 400 soil samples containing 13 attributes. The relationship between soil attributes was observed based on the data. K-means clustering algorithm was employed in analyzing soil fertility clusters. Four clusters were identified with cluster 1 having the highest fertility, followed by 2 and the fertility decreases with an increasing number of clusters. The identification of the most fertile clusters will guide farmers on where best to concentrate on when planting their crops in order to improve productivity and crop yield.

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