Results 41 to 50 of about 143,660 (279)
پهنه بندی پارامترهای مؤثر در کیفیت حاصلخیزی خاک شالیزار برای مدیریت بهینه مصرف کود [PDF]
پژوهشهای حفاظت آب و خاک, 2018 سابقه و هدف: گیاهان از جمله برنج برای تأمین نیاز عناصر غذایی خود به مصرف کود احتیاج دارند تا تولید بیشتر در واحد سطح فراهم شود. برای این منظور شناسایی مقادیر عناصر پرمصرف در خاک و تهیه نقشه مناسب آنها ضروری است.
حامد رضایی +3 more
doaj +1 more source
Assessment of actual power and electric power at construction sites
Architecture and Engineering, 2016 The article deals with issues connected with power supply of buildings and structures under construction. Due to nonlinear nature of electric power consumption at building industry enterprises, current and feeding voltage are distorted.
Viktor Reznichenko +2 more
doaj +1 more source
EFFECT DIFFERENT LEVELS OF NITROGEN AND PHOSPHATE FERTILIZER ON THE VEGETATIVE GRWOTH AND CHEMICAL CONTENT OF YUCCA ALOIFOLIA L. [PDF]
Mesopotamia Journal of Agriculture, 2013 The present study was carried out in laths house to study the effect of four levels of fertilizer (0.0, 1.0, 1.5 and 2.0) g as ammonium sulphate (21% N) and four levels of Phosphate fertilizer (0.0, 0.5, 1.0, 1.5) g as tri-super Phosphate (45% P2O5) per ...
Alaa Hashem . Y. Altaee
doaj +1 more source
The Effects of the Peak-Peak Correlation on the Peak Model of Hierarchical Clustering [PDF]
, 1997 In two previous papers a semi-analytical model was presented for the hierarchical clustering of halos via gravitational instability from peaks in a random Gaussian field of density fluctuations.
Alberto Manrique +9 more
core +3 more sources
Известия высших учебных заведений России: Радиоэлектроника, 2018 The article investigates ways to expand the dynamic range of broadband microwave receiving devices. The task is to lim-it the output signals while increasing the upper boundary of the dynamic range by the criterion of the thirdorder inter-modulation ...
S. A. Bogdanov +3 more
doaj +1 more source
International Journal of Agriculture System, 2020 A trial was conducted to study the physiological responses of baby corn to changes in soil fertility by application of organic and inorganic fertilizers.
Syamsir Pante Sukun +2 more
doaj +1 more source
Reproduction methods and bioproductivity of Maclea x kevensis Turill in the Western Caucasus
Овощи России, 2022 At present, much attention is paid to medicinal plants, the raw material of which is used for the production of drugs with antibacterial activity. Such plants include Macleaea x kevensis Turill.
O. A. Bykova +3 more
doaj +1 more source
NPK Fertilizer With Slow Release Fly Ash [PDF]
The Journal of Pure and Applied Chemistry Research, 2018 Fly ash is the solid of the remaining coal combustion carried along with the exhaust gas and captured by the air controller. Fluids in fly ash are Al2O3, SiO2, Fe2O3, CaO, MgO, Na2, and SO3 which are similar to zeolites. So that fly ash can be used as a substitute for zeolite for various carrier of fertilizer.
Nadhira Izzatur Silmi +5 more
openaire +2 more sources
Зерновое хозяйство России, 2023 The purpose of the current study was to determine changes in the chemical composition of oat plants and the accumulation of the main nutrients when applying mineral and biomodified fertilizers.
G. V. Ermolaeva
doaj +1 more source
Open Agriculture, 2020 Biochar has a low chemical composition and is recalcitrant to degradation. For good soil fertility and nutrient use efficiency of crops it becomes imperative that addition of a fast releasing nutrient source to biochar be sought.
A. Adekiya +9 more
semanticscholar +1 more source