Results 111 to 120 of about 94,890 (219)

MANURE VALUE, PRICING SYSTEMS, AND SWINE PRODUCTION DECISIONS [PDF]

open access: yes
Based on a swine producer's profit maximization model in which manure value and packers' live market weight pricing systems are considered, the optimal farm inventory and optimal hog market weight are simultaneously solved for scenarios generated from ...
Miller, Gay Y., Huang, Haixiao
core  

Yield-forming effect of the crop rotation without farmyard manure under sandy soil conditions [PDF]

open access: yes, 1988
Целью точного полевого опыта было сравнение продуктивности двух севооборотов, без стойлового навоза и со стойловым навозом,при трех уровнях удобрения NPK под картофель. В безнавозном севообороте органическим удобрением являлись сидеральные удобрения.
Pawlowski, F., Szymankiewicz, K.
core  

Nawożenie słomą i resztkami pożniwnymi międzyplonu wsiewki jako czynnik kształtujący plon i wartość technologiczną buraka cukrowego

open access: yesAgronomy Science, 2004
The field experiments was carried out in the years 1994–1997 at the Agricultural Experimental Stations in Zawady, on cereal-fodder strong soils, in random blocks design in three replications.
Danuta Buraczyńska
doaj  

Farmyard manure, lime and NPK effect on yields of potatoes and chemical properties of light soils [PDF]

open access: yes, 1989
На кислой легкой бурой почве с содержанием 8% илистых частиц проводился 6-летний полевой опыт по удобрению картофеля сорта Вышоборске. Bнисили 10 тонн стойлового навоза и карбонат кальция в соответствии с 3/4 гидролитической кислотности, а также ...
Kalembasa, S., Zadelek, J.
core  

Enhancing Crop Yield and Soil Fertility With Integrated Compost Management Using Tithonia and Alnus Biomass

open access: yesInternational Journal of Agronomy
In a sustainable agriculture system, closed organic materials could help utilize local resources and improve farming efficiency. The purpose of this study was to utilize nearby materials with a high decomposition rate, allowing for the incorporation of ...
Felix Nzeyimana   +5 more
doaj   +1 more source

The Kinetic of Biogas Production Rate from Cattle Manure in Batch Mode [PDF]

open access: yes, 2010
In this study, the kinetic of biogas production was studied by performing a series laboratory experiment using rumen fluid of animal ruminant as inoculums. Cattle manure as substrate was inoculated by rumen fluid to the anaerobic biodigester.
Seno, Johari   +3 more
core   +1 more source

Temporal variations in the yield increment resulting from the application of fertilizer and farmyard manure.

open access: yes, 2014
(A) Maize; (B) Barley; (C) Soybean; SS, subsurface soil; S, surface soil; F, level of fertilizer; M, level of farmyard manure.
Junko Yamagishi (662957)   +2 more
core   +1 more source

Substitution of fertiliser with poultry manure: Is this economically viable? [PDF]

open access: yes
Rapid expansion of the KwaZulu-Natal poultry industry has resulted in poultry manure and litter production that in certain areas exceeds the potential for use in crop production. If land application exceeds crop requirements, manure production may result
Mkhabela, Thulasizwe S.
core  

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