Soil Fertility and Indigenous Nutrient Supply in Irrigated Rice Domains of Asia

2003 ◽  
Vol 95 (4) ◽  
pp. 913 ◽  
Author(s):  
A. Dobermann ◽  
C. Witt ◽  
S. Abdulrachman ◽  
H. C. Gines ◽  
R. Nagarajan ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Nutrient Supply ◽  
Irrigated Rice ◽  
Indigenous Nutrient Supply

Soil Fertility and Indigenous Nutrient Supply in Irrigated Rice Domains of Asia

2003 ◽  
Vol 95 (4) ◽  
pp. 913-923 ◽  
Author(s):  
A. Dobermann ◽  
C. Witt ◽  
S. Abdulrachman ◽  
H. C. Gines ◽  
R. Nagarajan ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Nutrient Supply ◽  
Irrigated Rice ◽  
Indigenous Nutrient Supply

Rotation with oilseed rape as the winter crop enhances rice yield and improves soil indigenous nutrient supply

2021 ◽  
Vol 212 ◽  
pp. 105065
Author(s):  
Yating Fang ◽  
Tao Ren ◽  
Shuntao Zhang ◽  
Yu Liu ◽  
Shipeng Liao ◽  
...  
Keyword(s):  
Oilseed Rape ◽  
Rice Yield ◽  
Nutrient Supply ◽  
Winter Crop ◽  
Indigenous Nutrient Supply

Improved soil fertility and weed management is profitable for irrigated rice farmers in Sahelian West Africa

2000 ◽  
Vol 66 (2) ◽  
pp. 101-113 ◽  
Author(s):  
S.M Haefele ◽  
D.E Johnson ◽  
S Diallo ◽  
M.C.S Wopereis ◽  
I Janin
Keyword(s):  
West Africa ◽  
Soil Fertility ◽  
Weed Management ◽  
Irrigated Rice ◽  
Rice Farmers

Yield Gaps, Indigenous Nutrient Supply, and Nutrient Use Efficiency of Wheat in China

2011 ◽  
Vol 103 (5) ◽  
pp. 1452-1463 ◽  
Author(s):  
Xiaoyan Liu ◽  
Ping He ◽  
Jiyun Jin ◽  
Wei Zhou ◽  
Gavin Sulewski ◽  
...  
Keyword(s):  
Nutrient Use Efficiency ◽  
Nutrient Supply ◽  
Nutrient Use ◽  
Yield Gaps ◽  
Use Efficiency ◽  
Indigenous Nutrient Supply

scholarly journals Crop Yield and Soil Fertility Status of Long-Term Rice-Rice-Wheat Cropping Systems

2017 ◽  
Vol 5 (1) ◽  
pp. 42-50
Author(s):  
Nabin Rawal ◽  
Rajan Ghimire ◽  
Devraj Chalise
Keyword(s):  
Soil Fertility ◽  
Crop Yield ◽  
Management Practices ◽  
Crop Yields ◽  
Oryza Sativa L ◽  
Farmyard Manure ◽  
Wheat Yield ◽  
Nutrient Supply ◽  
Available Phosphorus

Balanced nutrient supply is important for the sustainable crop production. We evaluated the effects of nutrient management practices on soil properties and crop yields in rice (Oryza sativa L.) - rice - wheat (Triticum aestivum L.) system in a long-term experiment established at National Wheat Research Program (NWRP), Bhairahawa, Nepal. The experiment was designed as a randomized complete block experiment with nine treatments and three replications. Treatments were applied as: T1- no nutrients added, T2- N added; T3- N and P added; T4- N and K added; T5- NPK added at recommended rate for all crops. Similarly, T6- only N added in rice and NPK in wheat at recommended rate; T7- half N; T8- half NP of recommended rate for both crops; and T9- farmyard manure (FYM) @10 Mg ha-1 for all crops in rotation. Results of the study revealed that rice and wheat yields were significantly greater under FYM than all other treatments. Treatments that did not receive P (T2, T3, T7, T8) and K (T2, T4) had considerably low wheat yield than treatments that received NPK (T5) and FYM (T9). The FYM lowered soil pH and improved soil organic matter (SOM), total nitrogen (TN), available phosphorus (P), and exchangeable potassium (K) contents than other treatments. Management practices that ensure nutrient supply can increase crop yield and improve soil fertility status.Int. J. Appl. Sci. Biotechnol. Vol 5(1): 42-50

scholarly journals The Role and Significance of Soil Analyses in Plant Nutrition and Environmental Protection

2006 ◽  
pp. 3-8
Author(s):  
Jakab Loch
Keyword(s):  
Sustainable Agriculture ◽  
Soil Fertility ◽  
Environmental Protection ◽  
Monitoring System ◽  
Management Practices ◽  
Nutrient Management ◽  
Nutrient Supply ◽  
Acidic Soils ◽  
Inorganic Fertilizers ◽  
Use Of Resources

Hungary has a rich history of soil analyses and soil mapping. Our main tasks today are the preservation of soil fertility as well as balancing the goals of production and environmental protection. The main requirement of agricultural production is to adapt to ecological and economic conditions.In a series of consultative meetings in the past seven years, representatives from Central and Eastern Europe have analyzed nutrient management practices in their respective countries. According to a joint memorandum agreed upon in 2000, in the countries awaiting accession, the quantity of nutrients used per hectare is considerably smaller than the Western-European usage targeted through special subsidies. The current low nutrient usage contradicts the principles of sustainability and that of the efficient use of resources, jeopardizing soil fertility.In Hungary, the use of inorganic fertilizers underwent a dynamic development, which manifested itself in an almost tenfold usage growth between 1960 and 1985. This growth slowed down somewhat between 1985 and 1990 and then reduced dramatically after 1990, reaching record lows at the usage levels of the 60s. The nutrient supply has had a negative balance for the last 15 years.The increasing and then decreasing usage trends can equally be detected in the domestic yield averages of wheat and corn as well as in the nutrient supply of soils. Yields were the largest when usage levels were the highest, and decreased thereafter. Draughts have also contributed to smaller yields. The dramatic decrease in the use of inorganic fertilizers when adequate organic fertilizers are lacking endangers our soils’ fertility.About 50% of soils in Hungary are acidic. Acidity is mostly determined by soil formation, but especially on soils with a low buffering capacity, this acidity may intensify due to inorganic fertilizers. Sustainable agriculture requires the chemical improvement of acidic soils. According to their y1 values, the majority of our acidic soils need to be improved. This chemical soil remediation is required in 15% of the acidic soils, while it’s recommended for another 20% of these soils.Results of the analyses conducted in the framework of the soil-monitoring system set up in Hungary in 1992 show that in 95% of the analyzed samples, the toxic element content is below the allowable limit. Cultivated areas are not contaminated; toxicity above the legal level was found only in specific high-risk sampling areas: in the vicinity of industry, due to local overload. The basic principle of sustainable agriculture is to preserve soil fertility without undue strain on the environment. The intensity of the production needs to be considered according to the conditions of the site; i.e.; nutrient management needs to be site-specific. It is recommended to differentiate three types of cultivated land in terms of environmental sensitivity: areas with favorable conditions, endangered areas, and protected areas, and then to adopt nutrient management practices accordingly. To meet all the above-mentioned goals is impossible without systematic soil analysis. Tests conducted by the national monitoring system cannot replace regular field measurements.

scholarly journals Low Soil Nutrient Tolerance and Mineral Fertilizer Response in White Guinea Yam (Dioscorea rotundata) Genotypes

2021 ◽  
Vol 12 ◽  
Author(s):  
Ryo Matsumoto ◽  
Haruki Ishikawa ◽  
Asrat Asfaw ◽  
Robert Asiedu
Keyword(s):  
West Africa ◽  
Soil Fertility ◽  
Soil Nutrients ◽  
Tuber Yield ◽  
Soil Nutrient ◽  
Mineral Fertilizer ◽  
Dry Weight ◽  
Nutrient Supply ◽  
Fertilizer Response ◽  
Guinea Yam

Yam (Dioscorea spp.) is a major food security crop for millions of resource-poor farmers, particularly in West Africa. Soil mineral deficiency is the main challenge in yam production, especially with the dwindling of fallow lands for the indigenous nutrient supply. Cultivars tolerant to available low soil nutrients and responsive to added nutrient supply are viable components of an integrated soil fertility management strategy for sustainable and productive yam farming systems in West Africa. This study’s objective was to identify white Guinea yam (D. rotundata) genotypes adapted to available low soil nutrients and responsive to externally added nutrient supply. Twenty advanced breeding lines and a local variety (Amula) were evaluated under contrasting soil fertility, low to expose the crop to available low soil nutrient supply and high to assess the crop response to added mineral fertilizer (NPK) input at Ibadan, Nigeria. The genotypes expressed differential yield response to low soil fertility (LF) stress and added fertilizer input. Soil fertility susceptibility index (SFSI) ranged from 0.64 to 1.34 for tuber yield and 0.60 to 1.30 for shoot dry weight. The genotypes R034, R041, R050, R052, R060, R100, and R125 combined lower SFSI with a low rate of reduction in tuber yield were identified as tolerant to LF stress related to the soil mineral deficiency. Likewise, the genotypes R109, R119, and R131 showed high susceptibility to soil fertility level and/or fertilizer response. Genotypes R025 and R034 had the tuber yielding potential twice of that the local variety under low soil nutrient conditions. Shoot dry weight and tuber yield showed a positive correlation both under low and high soil fertility conditions (r = 0.69 and 0.75, respectively), indicating the vigor biomass may be a morphological marker for selecting genotypes of white Guinea yam for higher tuber yield. Our results highlight genotypic variation in the tolerance to low soil nutrients and mineral fertilizer response in white Guinea yam to exploit through breeding and genetic studies to develop improved genotypes for low and high input production systems in West Africa.

Soil fertility management in irrigated rice systems in the Sahel and Savanna regions of West Africa

1999 ◽  
Vol 61 (2) ◽  
pp. 125-145 ◽  
Author(s):  
M.C.S Wopereis ◽  
C Donovan ◽  
B Nebié ◽  
D Guindo ◽  
M.K N'Diaye
Keyword(s):  
West Africa ◽  
Soil Fertility ◽  
Soil Fertility Management ◽  
Irrigated Rice ◽  
Fertility Management
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