Nitrogen and phosphorus use in maize sole cropping and maize/cowpea mixed cropping systems on an Alfisol in the northern Guinea Savanna of Ghana

1991 ◽  
Vol 10 (4) ◽  
pp. 267-275 ◽  
Author(s):  
R. H�rdter ◽  
W. J. Horst
Keyword(s):  
Cropping Systems ◽  
Mixed Cropping ◽  
Nitrogen And Phosphorus ◽  
Northern Guinea Savanna ◽  
Guinea Savanna ◽  
Sole Cropping

scholarly journals MAIZE–SOYBEAN INTERCROPPING FOR SUSTAINABLE INTENSIFICATION OF CEREAL–LEGUME CROPPING SYSTEMS IN NORTHERN NIGERIA

2017 ◽  
Vol 55 (1) ◽  
pp. 73-87 ◽  
Author(s):  
ALPHA Y. KAMARA ◽  
ABDULLAHI I. TOFA ◽  
TEMITOPE ADEMULEGUN ◽  
REUBEN SOLOMON ◽  
HAULATU SHEHU ◽  
...  
Keyword(s):  
Cropping Systems ◽  
Block Design ◽  
Field Studies ◽  
Northern Nigeria ◽  
Land Equivalent Ratio ◽  
Northern Guinea Savanna ◽  
Monetary Value ◽  
Guinea Savanna ◽  
Randomized Complete Block Design ◽  
Sole Cropping

SUMMARYField studies were conducted during the 2014 and 2015 wet seasons at Zaria in the northern Guinea savanna and at Iburu in the southern Guinea savanna of Nigeria to determine the productivity of maize–soybean intercropping system. There were four treatment combinations in the experiment: sole maize; sole soybean; maize spaced at 50 cm and intercropped with soybean; and maize spaced at 65 cm and intercropped with soybean. The experiment was laid out in a randomized complete block design with three replications. The results showed that sole cropped maize and soybean generally outperformed the intercropped component crops. Land Equivalent Ratio (LER) was greater than 1 for all the intercrop treatments, indicating that it is advantageous to grow maize and soybean in association than in pure stands. Except for 2014 in Zaria, LER for intercropped maize spaced at 50 cm was higher than that for maize spaced at 65 cm. Gross Monetary Value (GMV) was generally higher for intercrops than sole crops except in Iburu in 2015 where GMV for intercropped maize spaced at 65 cm was similar to those of sole maize and soybean. Monetary Advantage Index (MAI) was positive for all intercrop treatments in both locations and years, which shows definite yield and economic advantages compared to the sole cropping systems. This suggests that farmers can intercrop soybean and maize with maize spaced at 50 cm and 65 cm.

Soil carbon dynamics and crop residue yields of cropping systems in the Northern Guinea Savanna of Burkina Faso

2007 ◽  
Vol 93 (1) ◽  
pp. 138-151 ◽  
Author(s):  
W. McNair Bostick ◽  
Vincent B. Bado ◽  
Andre Bationo ◽  
Cecilia Tojo Soler ◽  
Gerrit Hoogenboom ◽  
...  
Keyword(s):  
Burkina Faso ◽  
Soil Carbon ◽  
Crop Residue ◽  
Cropping Systems ◽  
Carbon Dynamics ◽  
Soil Carbon Dynamics ◽  
Northern Guinea Savanna ◽  
Guinea Savanna

Performance of green gram - sesame mixed croppingin the red and lateritic zone of West Bengal

2017 ◽  
Author(s):  
Golam Moinuddin
Keyword(s):  
West Bengal ◽  
Cropping Systems ◽  
Block Design ◽  
Green Gram ◽  
Lateritic Soil ◽  
Research Station ◽  
Mixed Cropping ◽  
Randomized Block Design ◽  
Sole Cropping ◽  
Branch Plant

A field experiment was carried out in the red and lateritic soil of Regional Research Station, Jhargram, Bidhan Chandra Krishi Viswavidyalaya,West Bengal during the prekharif season of 2015 to evaluate the technological feasibility of mixed cropping of green gram with sesame under different seeding ratio. The experiment was conducted in a randomized block design with four replications. The treatments comprises for the experiment were T1-sole green gram, T2-sole sesame, T3-green gram: sesame -90:10, T4- green gram : sesame-75 : 25, T5- green gram : sesame-60 : 40 , T6 –green gram : sesame-50 : 50. Yield parameters like number branch/plant, number of pod/ plant, number of capsule/plant, pod length, number of grain per pod/capsule, grain weight etc. were studied. The highest grain yield for both crop was obtained from the sole cropping of green gram and sole sesame. The maximum land equivalent ratio(LER) of 1.18 was observed at green gram : sesame seeding ratio of 60 : 40.The highest green gram equivalent yield( 9.49 q/ha) was obtained from green gram : sesame seeding ratio of 60 : 40 . It was noticed that in all the mixed cropping systems, there was higher LER which indicates higher yield advantage over the sole crop.

Mixed cropping in Northern Nigeria IV. Extended Trials with Cereals and Groundnuts

1980 ◽  
Vol 16 (4) ◽  
pp. 361-369 ◽  
Author(s):  
E. F. I. Baker
Keyword(s):  
High Probability ◽  
Research Station ◽  
Mixed Cropping ◽  
Northern Nigeria ◽  
Main Research ◽  
Northern Guinea Savanna ◽  
Guinea Savanna ◽  
Sole Crop

SUMMARYTrials carried out at a range of locations in northern Nigeria showed that gross cash returns from mixtures were never less than those from sole groundnuts, confirming results from the main research station at Samaru. In many cases they were considerably higher and in the Northern Guinea Savanna, where the system is most widely practised, showed a high probability of returns greater than the sole crop median. Increasing attention is being paid to haulm yield and the possibility that sole groundnut may be more profitable near large towns because of haulm value.

scholarly journals Mixed Cropping System on Diversity and Density of Plant Parasitic Nematodes

2016 ◽  
Vol 8 (11) ◽  
pp. 147
Author(s):  
Kingsley Osei ◽  
Haruna Braimah ◽  
Umar Sanda Issa ◽  
Yaw Danso
Keyword(s):  
Growth Parameters ◽  
Cropping Systems ◽  
Block Design ◽  
Cropping System ◽  
Significance Test ◽  
Parasitic Nematodes ◽  
Total Biomass ◽  
Mixed Cropping ◽  
Pests And Diseases ◽  
Sole Cropping

<p>The potential of mixed cropping system on the diversity and suppression of nematodes was investigated at two locations in Ghana. The treatments in the study were; sole plantain, sole cassava and plantain+cassava systems replicated five and four times in a randomized complete block design (RCBD) at Kwadaso in the Ashanti and Assin Foso in the Central region of Ghana respectively. Growth parameters (height and girth) and components of yield (No. of suckers/plant, bunch weight/plant, No. of hands/plant, No. of fingers/plant) were studied on plantain in addition to No. of weevils per plant. On cassava, total biomass, tuber number and tuber weight (yield) were analyzed using GenStat software and means were separated with Fisher’s least significance test at a = 0.05. There were no differences in height and girth of plantain at Assin Foso. However, plant height was 25% and girth 13% more under sole plantain system over the mixed cropping system at Kwadaso. The sole plantain system recorded 60% and 75% more suckers than the Plantain-Cassava system at both locations. Mixed and sole cropping systems did not influence the diversity of nematode community but significant differences were observed in the density of the nematode taxa encountered under the two systems. Throughout the investigation at both locations, it was observed that the mixed cropping system recorded significantly (P &lt; 0.05) lower nematode population densities in comparison to sole cropping system. It is therefore true that an agro-ecological strategy for pests and diseases control is the growing of a mixture of crops differing in their susceptibility to pests and pathogens</p>

Nitrate Leaching to a Shallow Mid-Atlantic Coastal Plain Aquifer as Influenced by Conventional No-Till and Low-Input Sustainable Grain Production Systems

1993 ◽  
Vol 28 (3-5) ◽  
pp. 691-700 ◽  
Author(s):  
J. P. Craig ◽  
R. R. Weil
Keyword(s):  
Management Practices ◽  
Production Systems ◽  
Cropping Systems ◽  
Cropping System ◽  
Atlantic Coastal Plain ◽  
Grain Production ◽  
Nitrogen And Phosphorus ◽  
Mineral N ◽  
Low Input ◽  
No Till

In December, 1987, the states in the Chesapeake Bay region, along with the federal government, signed an agreement which called for a 40% reduction in nitrogen and phosphorus loadings to the Bay by the year 2000. To accomplish this goal, major reductions in nutrient loadings associated with agricultural management practices were deemed necessary. The objective of this study was to determine if reducing fertilizer inputs to the NT system would result in a reduction in nitrogen contamination of groundwater. In this study, groundwater, soil, and percolate samples were collected from two cropping systems. The first system was a conventional no-till (NT) grain production system with a two-year rotation of corn/winter wheat/double crop soybean. The second system, denoted low-input sustainable agriculture (LISA), produced the same crops using a winter legume and relay-cropped soybeans into standing wheat to reduce nitrogen and herbicide inputs. Nitrate-nitrogen concentrations in groundwater were significantly lower under the LISA system. Over 80% of the NT groundwater samples had NO3-N concentrations greater than 10 mgl-1, compared to only 4% for the LISA cropping system. Significantly lower soil mineral N to a depth of 180 cm was also observed. The NT soil had nearly twice as much mineral N present in the 90-180 cm portion than the LISA cropping system.

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