scholarly journals Yam-Based Cropping Systems Performances with Herbaceous Legumes and Chemical Fertilizers

2019 ◽  
Vol 3 (3) ◽  
Author(s):  
Raphiou Maliki
Keyword(s):  
Cropping Systems ◽  
Chemical Fertilizers ◽  
Herbaceous Legumes

scholarly journals Dry Matter Production, Nutrient Cycled and Removed, and Soil Fertility Changes in Yam-Based Cropping Systems with Herbaceous Legumes in the Guinea-Sudan Zone of Benin

Scientifica ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-12
Author(s):  
Raphiou Maliki ◽  
Brice Sinsin ◽  
Anne Floquet ◽  
Denis Cornet ◽  
Eric Malezieux ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Dry Matter ◽  
Cropping Systems ◽  
Block Design ◽  
Chemical Properties ◽  
Mucuna Pruriens ◽  
Total N ◽  
Herbaceous Legumes ◽  
Andropogon Gayanus ◽  
The Impact

Traditional yam-based cropping systems (shifting cultivation, slash-and-burn, and short fallow) often result in deforestation and soil nutrient depletion. The objective of this study was to determine the impact of yam-based systems with herbaceous legumes on dry matter (DM) production (tubers, shoots), nutrients removed and recycled, and the soil fertility changes. We compared smallholders’ traditional systems (1-year fallow ofAndropogon gayanus-yam rotation, maize-yam rotation) with yam-based systems integrated herbaceous legumes (Aeschynomene histrix/maize intercropping-yam rotation,Mucuna pruriens/maize intercropping-yam rotation). The experiment was conducted during the 2002 and 2004 cropping seasons with 32 farmers, eight in each site. For each of them, a randomized complete block design with four treatments and four replicates was carried out using a partial nested model with five factors: Year, Replicate, Farmer, Site, and Treatment. Analysis of variance (ANOVA) using the general linear model (GLM) procedure was applied to the dry matter (DM) production (tubers, shoots), nutrient contribution to the systems, and soil properties at depths 0–10 and 10–20 cm. DM removed and recycled, total N, P, and K recycled or removed, and soil chemical properties (SOM, N, P, K, and pH water) were significantly improved on yam-based systems with legumes in comparison with traditional systems.

scholarly journals Organic Amendments with Chemical Fertilizers Improve Soil Fertility and Microbial Biomass in Rice-Rice-Rice Triple Crops Cropping Systems

2017 ◽  
Vol 07 (05) ◽  
pp. 87-100 ◽  
Author(s):  
Md. Farid Ahammed Anik ◽  
Md. Mizanur Rahman ◽  
G. K. M. Mustafizur Rahman ◽  
Md. Khairul Alam ◽  
Mahammad Shariful Islam ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Soil Fertility ◽  
Cropping Systems ◽  
Organic Amendments ◽  
Chemical Fertilizers

Contribution and assessment of recycled menthol mint vermicompost on productivity and soil quality in mint and mint–rice–wheat rotation: A case study

2012 ◽  
Vol 28 (3) ◽  
pp. 212-219 ◽  
Author(s):  
Alok Kalra ◽  
Saket Shukla ◽  
Rakshapal Singh ◽  
Rajesh Kumar Verma ◽  
Mahesh Chandra ◽  
...  
Keyword(s):  
Cropping Systems ◽  
Wheat Yield ◽  
Soil Health ◽  
Cropping System ◽  
Recommended Dose ◽  
Mentha Arvensis ◽  
Chemical Fertilizers ◽  
Available N ◽  
Sole Crop

AbstractTrials in farmers' field(s) were conducted to study the usefulness of vermicompost (VC) produced from distillation waste of menthol mint (Mentha arvensis L. cv. Kushal) using earthworms (Eisenia foetida) in reducing the inputs of chemical fertilizers and improving soil health in menthol mint-based cropping systems. Results of the first trial conducted on menthol mint (sole crop) in the fields of 45 farmers clearly indicated that 75% of the chemical fertilizer inputs can be reduced by supplementing the fields with 5tha−1 of menthol mint VC leading to higher levels of profits to the farmers by significantly improving herb and oil yield (6.7 and 8.4%, respectively) compared to the full recommended dose of chemical fertilizers (NPK 75:60:60kgha−1). The second trial was conducted in the fields of six farmers adopting a menthol mint cropping system (mint–rice–wheat–mint) where significantly higher yields were recorded in plots supplemented with 5tha−1 of menthol mint VC+25% of the recommended dose of chemical fertilizers; an increase of 5.6–7.2% in mint oil and 6.6% in wheat yield over the plots receiving the full recommended dose of chemical fertilizers (NPK 75:60:60kgha−1). However, in the case of rice, the highest grain yield was observed within plots receiving the full recommended dose of chemical fertilizers. Data obtained on soil properties clearly showed that apart from enhancing the yields of crops, the integration of VC with chemical fertilizers considerably improved the soil fertility/sustainability status in terms of organic carbon, available N, P and K.

scholarly journals Long-term incorporation of manure with chemical fertilizers reduced total nitrogen loss in rain-fed cropping systems

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Yinghua Duan ◽  
Minggang Xu ◽  
Suduan Gao ◽  
Hua Liu ◽  
Shaomin Huang ◽  
...  
Keyword(s):  
Total Nitrogen ◽  
Cropping Systems ◽  
Nitrogen Loss ◽  
Chemical Fertilizers ◽  
Total Nitrogen Loss

scholarly journals Profitability and sustainability of peri-urban vegetable production systems in Vietnam

1996 ◽  
Vol 44 (2) ◽  
pp. 125-143 ◽  
Author(s):  
H.G.P. Jansen ◽  
D.J. Midmore ◽  
P.H. Binh ◽  
S. Valasayya ◽  
L.C. Tru
Keyword(s):  
Production Systems ◽  
Cropping Systems ◽  
Added Value ◽  
Farm Size ◽  
Ho Chi Minh City ◽  
Vegetable Production ◽  
Chemical Fertilizers ◽  
Vegetable Farmers ◽  
Fresh Vegetables ◽  
Returns To Labour

Results are reported of a study of the income and cropping systems of peri-urban vegetable farmers around Ho Chi Minh City, Vietnam, as well as the constraints and opportunities for vegetable production and marketing. Urban population growth is fuelling the demand for timely supplies of fresh vegetables. Much of this increased demand, particularly for the more perishable species, is satisfied through peri-urban production which has significantly increased since the change from centrally planned and collective systems to a market economy. Around Ho Chi Minh City farms are small (on average about 0.8 ha), 65% which are de facto owned and with about 60% dedicated to vegetables. Most vegetable farmers also grow rice and/or groundnuts, while cabbage is the most commonly grown vegetable crop. Vegetables provide about $1000 total revenues, or $650 added value (returns to labour, land and management) per farm per year. Added value per ha per day of vegetables is double or more than that for rice, providing employment for five or more times the number for rice, despite very high labour use. The negative correlation between farm size and cropping intensity suggests that labour is a factor limiting vegetable production enterprises. One of the major demands on labour is for irrigation. Major input costs relate to organic materials, chemical fertilizers and pesticides, although much variability exists between crops. Pests, and low and variable vegetable prices, are the most commonly cited constraints. There is a clear trough in vegetable supply during August to October following the hot-wet months, and an apparent overuse of chemical fertilizers and insecticides. Lack of communal purchase of inputs and marketing limit the success of market-oriented vegetable farms.

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