Results 21 to 30 of about 138,771 (325)

Estimation of the Yield of Some Rainfed Crops in the Present Irrigated Lands of Iran [PDF]

open access: yesبوم شناسی کشاورزی, 2023
Introduction Occurrence of drought and reduction of rainfall in the future will limit the cultivation of irrigated crops. Thus, it is probable that a part of the present irrigated lands and orchards of Iran may be unavailable for the cultivation of ...
Safora Jafarnodeh   +4 more
doaj   +1 more source

Growth Manipulation of Slicer Carrots by Foliar-applied Gibberellic Acid in New York

open access: yesHortTechnology, 2023
New York, USA, is a regional hub for processing carrot (Daucus carota ssp. sativus) production and Nantes-type cultivars are preferred for slicing. Diameter is critical in carrots for slicing, with roots larger than 1 5/8 inch being rejected.
Sarah J. Pethybridge   +2 more
doaj   +1 more source

Closing county-level yield gaps through better phosphorus fertilizer management in Northeast China

open access: yesFrontiers in Environmental Science, 2022
The limited available information on variations in yield gaps (differences between actual yields and the theoretically attainable yields) restricts the development of rational strategies to optimize yields and reduce environmental costs.
Wuliang Shi   +10 more
doaj   +1 more source

Effect of certain factors on first lactation peak yield and days to attain peak yield in Frieswal cattle

open access: diamondThe Indian Journal of Animal Sciences, 2018
T V RAJA   +4 more
openalex   +3 more sources

Regional distribution of wheat yield and chemical fertilizer requirements in China

open access: yesJournal of Integrative Agriculture, 2021
Quantification of currently attainable yield and fertilizer requirements can provide detailed information for assessing the food supply capacity and offer data support for agricultural decision-making.
Xin-peng XU   +9 more
doaj   +1 more source

Science-based decision support for formulating crop fertilizer recommendations in sub-Saharan Africa [PDF]

open access: yes, 2020
Open Access Article; Published online: 31 Jan 2020In sub-Saharan Africa, there is considerable spatial and temporal variability in relations between nutrient application and crop yield, due to varying inherent soil nutrients supply, soil moisture, crop ...
Andersson, Jens A.   +11 more
core   +1 more source

Rice Yield Gaps in Smallholder Systems of the Kilombero Floodplain in Tanzania

open access: yesAgronomy, 2020
To meet the growing rice demand in Africa, gaps between actual and attainable yields have to be reduced. In Tanzania, this particularly concerns smallholder rain-fed production systems in the floodplains.
Julius Kwesiga   +5 more
doaj   +1 more source

On the attainment of the maximum sustainable yield in the Verhulst–Lotka–Volterra model [PDF]

open access: yesAutomatica, 2017
We reformulate the Verhulst-Lotka-Volterra model of natural resource extraction under the alternative assumptions of Cournot behaviour and perfect competition, to revisit the tragedy of commons vs the possibility of sustainable harvesting. We stress the different impact of demand elasticity on the regulator’s possibility of driving industry harvest to ...
Lambertini, Luca, Leitmann, George
openaire   +4 more sources

Yield Gap Analysis of Alfalfa Grown under Rainfed Condition in Kansas

open access: yesAgronomy, 2022
The yield and production of alfalfa (Medicago sativa L.) have not been significantly improved in Kansas for the last 30 years even though farmers are using improved varieties.
Rudra Baral   +3 more
doaj   +1 more source

Yield gap analysis of rainfed alfalfa in the United States

open access: yesFrontiers in Plant Science, 2022
The United States (US) is the largest alfalfa (Medicago sativa L.) producer in the world. More than 44% of the US alfalfa is produced under rainfed conditions, although it requires a relatively high amount of water compared to major field crops ...
Rudra Baral   +3 more
doaj   +1 more source

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