نتایج جستجو برای: 15 and 30 t ha

تعداد نتایج: 17092568  

Journal: :علوم باغبانی 0
پرویز رضوانی مقدم محمد بهزاد امیری حمیدرضا احیایی

in recent years the use of organic and biological modifier as an environmental friendly replacement for chemical fertilizers has been used more. in order to study the effect of different levels of biological fertilizers and mushroom compost on flower yield and characteristics of saffron corms (crocus sativus l.), a split plot experiment based on rcbd design with three replications was conducted...

2016
Miles Dyck Sukhdev S. Malhi Marvin Nyborg

Pre-seeding tillage of long-term no-till soil may alter soil quality by changing some properties, but the magnitude of change depends on soil type and climatic conditions. Effects of short-term (2 or 3 years) tillage (hereafter called reverse tillage [RT]) of land previously under long-term no-till (NT, 29 or 30 years), with straw management (straw removed [SRem] and straw retained [SRet]) and ...

Journal: :یافته های تحقیقاتی در گیاهان زراعی و باغی 0
رجب چوکان مؤسسه تحقیقات اصلاح و تهیه نهال و بذر، کرج افشار استخر غلامرضا افشارمنش علی شیرخانی عزیز آفرینش محمدرضا شیری حمید نجفی نژاد

maize hybrid ksc 703 (k47/3 x mo17) produced grain yield 12.034 t/ha over seven locations in 2010, compared to ksc 704 with 12.034 t/ha, as check. during two years evealuation ( 2011-2012) over 12 locations, this hybrid revealed grain yield 11.291 t/ha, comparing to ksc 704 with 9.506 t/ha, showing 1.785 t/ha (18.8%) yield increase. on farm experimants carried out in islam abad, ravansar, mahta...

Journal: :International Journal of Plant and Soil Science 2022

A field experiment was carried out during Rabi season of 2020‒21 and 2021‒22 at the Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur research to find effect long term soil test crop response based nutrient management in wheat (Triticum aestivum L.) on physical properties a Vertisol. The treatments details were T1; Control, T2; 120 N: 80 P2O5: 60 K2O kg ha-1, T3; Target yield 4.5 t T4; 6.0 T5;...

2014
Benjamin Burges Peter Wagner

Die Anforderungen an die moderne Landwirtschaft bedingen einen effizienten Ressourceneinsatz, auch bei der N-Düngung. Ökonomisch optimierte Entscheidungsregeln wurden mit Künstlichen Neuronalen Netzen (KNN) und Support-Vector-Machines (SVM) erzeugt und in der Anwendung mit einer betriebseinheitlichen Variante verglichen. Es zeigte sich, dass Einsparpotentiale von bis zu 69 kg N/ha möglich sind ...

H. ANTOUN H. KHEYRODIN

The objective of this work was to study the effects of tillage and liquid manure applications on some physical and chemical properties as well as on the carbon and nitrogen mineralization potential of a meadow soil. Our results indicated that tillage and manure applications had no effect on the concentration of Cu, Mn, total N and organic C in 0-15 cm layer of soil after 15 years of treatment. ...

Journal: :E3S web of conferences 2021

The case study to determine the peculiarities of Miscanthus giganteus aboveground biomass formation depending on sewage sludge and composts rate carried out in Precarpathian region Ivano- Frankivsk province sod-podzolic soils. largest area leaf surface miscanthus is formed trials where fresh was applied 20 - 40 t/ha. increases from 19 up 24.0 cm2/plant, yield raw mass plants at level 23.5 25.1 ...

2014
M. S. Kahlon

Tillage practices significantly influences soil physical characteristics and crop productivity. The infiltration characteristics, bulk density, porosity, penetration resistance, grain yield of rice and wheat were measured under no-till without residue (NT), roto-tillage (RT), and no-till with residue i.e. happy seeder (HS) in rice-wheat cropping system in sandy loam (SL) and loamy sand (LS) soi...

Journal: :International Journal of Plant and Soil Science 2023

The objective of the present study is to effect various micronutrient mixtures on growth and yield parameters cabbage. Randomized Block Design (RBD) was used in with twelve treatments three replications. field experiment carried out farmer’s at Boluvampatti, Coimbatore (Tamil Nadu) during March June 2023. A conducted where different ratios were applied four levels (15 kg ha-1,20 ha-1, 25 ha -1 ...

Journal: :Sustainability 2022

Salinity is one of the most critical challenges for crop production and soil water management in arid semi-arid regions, such as a large area Morocco. These regions are characterized by low rainfall with an erratic distribution, long drought periods, high evaporation, resulting salt accumulation superficial layer degradation. Therefore, phosphogypsum (PG) could be promising amendment to reduce ...

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