Results 71 to 80 of about 7,676,313 (294)
Shuitu baochi yanjiu, 2005 Phosphorus is an important nutrient for animals and plants,the phosphorus level in soil determines the effect of phosphatic fertilizer.In agricultural production,the determination of available phosphorus is widely used.It has been 20 years since the ...
ZHANG Ke-an~1 +4 more
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Stoichiometric Characteristics of Soil in Several Different Communities
E3S Web of Conferences, 2018 The content of nitrogen, phosphorus, potassium and organic matter in soil is an important index to determine soil nutrient status. In this paper, the contents of nitrogen, phosphorus, potassium, organic matter and soil salt in the soil of several ...
Liu Xinyu +5 more
doaj +1 more source
Soil pH Amelioration Synergizes Carbon Accrual with Yield Gains Under Organic Substitution
Advanced Science, EarlyView.Soil pH shifts towards neutrality in both acidic and alkaline soils under organic substitution. A global synthesis links pH amelioration to soil organic carbon accrual through enhanced microbial biomass after accounting for added organic carbon and its interaction with pH. This pH amelioration‐shared soil organic carbon accrual accounts for 5.1–8.6% of
Xunzhuo Dong +7 more
wiley +1 more source
Dynamically Optimal Phosphorus Management and Agricultural Water Protection [PDF]
This paper puts forward a model of the role of phosphorus in crop production, soil phosphorus dynamics and phosphorus loading that integrates the salient economic and ecological features of agricultural phosphorus management.
Laukkanen, Marita, Iho, Antti
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Hemp Cultivation and Crop Diversification: Implications for Ecosystem Services in Kentucky
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT This study examines the ecosystem benefits of expanding hemp cultivation by assessing its impact on crop diversity. Using scenario‐based simulations and fixed‐effect panel regressions with county‐level data in Kentucky, we find that increased hemp acreage tends to enhance crop diversity, improving water quality and bird diversity.
Yunsun Park +4 more
wiley +1 more source
Effect of Sterilization on the Change of Available Phosphorus During the Wetting and Drying Process [PDF]
E3S Web of ConferencesWetting and drying are typical natural events in arid and semiarid areas. In order to explore the contribution of microorganisms to the change in soil phosphorus components during wetting and drying processes, soil incubation experiments were conducted ...
Jin Jiayao, Dai Gang
doaj +1 more source
Open Journal of Soil Science, 2019 Phosphate mineral fertilisers are manufactured from non-renewable resources.Soil fertilisation with composts is considered a good source of reuse nutrients such as phosphorus (P). The aim of this work was to evaluate the effect of compost fertilisation on soil P sorption and consequently on P availability.
openaire +3 more sources
Firm turnover under asymmetric information: Tanzania's agro‐dealer sector
American Journal of Agricultural Economics, EarlyView.Abstract We study firm turnover (i.e., entry and exit) and its consumer implications in a market characterized by asymmetric information. Using a three‐round census of agro‐dealers in Tanzania's Morogoro Region, we document annual firm entry and exit rates of 33% and 17%, respectively.
Alix Naugler +3 more
wiley +1 more source
Determination of available soil phosphorus by chemical methods
Agricultural and Food Science, 1978 Phosphorus uptake by oats in pot experiments was compared with phosphorus test values obtained for experimental soils. Phosphorus was extracted from the soil using acid ammonium acetate solution, Bray 1 solution, Olsen solution, ammonium fluoride ...
Erkki Aura
doaj
Managing Nitrogen and Phosphorus Nutrients for Switchgrass Produced for Bioenergy Feedstock in Phosphorus-Deficient Soil [PDF]
There is limited information available explaining the agronomic and economic relationships between yield and nitrogen and phosphorus applications to growing switchgrass produced in phosphorus-deficient soils.
Haque, Mohua +3 more
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