نتایج جستجو برای: organic fertilizer

تعداد نتایج: 216427  

Journal: :Scientific reports 2015
Alin Song Dongfeng Ning Fenliang Fan Zhaojun Li Mary Provance-Bowley Yongchao Liang

Rice is a typical silicon-accumulating plant. Silicon (Si), deposited as phytoliths during plant growth, has been shown to occlude organic carbon, which may prove to have significant effects on the biogeochemical sequestration of atmospheric CO2. This study evaluated the effects of silicate fertilization on plant Si uptake and carbon bio-sequestration in field trials on China's paddy soils. The...

2015
Chuan Luo Zhaofu Li Hengpeng Li Xiaomin Chen Miklas Scholz

The application of hydrological and water quality models is an efficient approach to better understand the processes of environmental deterioration. This study evaluated the ability of the Annualized Agricultural Non-Point Source (AnnAGNPS) model to predict runoff, total nitrogen (TN) and total phosphorus (TP) loading in a typical small watershed of a hilly region near Taihu Lake, China. Runoff...

ژورنال: علوم آب و خاک 2015
افیونی, مجید, خوش‌گفتارمنش, امیرحسین, نوروزی, مجتبی,

Organic fertilizers affect soil chemical and physical properties, particularly chemical forms of zinc in soil solid phase and thereby improve soil Zn availability. The present field study was aimed to evaluate the effects of organic and chemical fertilizer (zinc sulfate) on different zinc fractions in soil solid phase of rhizosphere in two successive years in Rudasht Research Field, Isfahan. Tr...

برمکی, مرتضی , خیری‌زاده آروق, یونس , قربانی, حسن ,

This research was performed to study the effect of direct planting and transplanting of potato minituber on its yield and yield components. The experiment was designed as a randomized complete blocks with nine treatments and three replications. Treatments were one direct and eight indirect planting. In order to prepare the nursery, two types of pots (peat and nylon) and four types of substrates...

Journal: :Land 2021

This study investigates the key factors affecting farmers’ decisions to use chemical fertilizer and/or organic in Chinese apple production. calculates partial output elasticities and of substitution between fertilizer, using a stochastic frontier production function model data for 2017–2019. Subsequently, it analyzes how different sales channels impact fertilizer. It also examines economic ince...

Laia Morad-beigi, Mehdi Tajbakhsh Reza Amirnia

In order to investigate the possibility of using organic fertilizers in tobacco floating nursery, an experiment was conducted at tobacco research institute of Urmia in 2010. The experiment was done as factorial trail based on randomized complete block design (CRBD) with four replications. The levels of first factor were disinfected poultry manure, disinfected pigeon manure, a complete fertilize...

Journal: :پژوهش های زراعی ایران 0
محسن جهان محمد بهزاد امیری مهسا اقحوانی شجری محمد کاظم تهامی

in recent years, in order to enhance the health of agroecosystems, concerns on ecological inputs especially to produce medicinal plants, has been increased. in order to evaluate the effects of winter cover crops on pgprs activities and soil nitrogen content in simultaneous application of organic manures and biological fertilizer in a low input production system of cucurbita pepo under minimum t...

Journal: :دامپزشکی 0
محمد رضا قمی گروه شیلات دانشگاه آزاد اسلامی واحد تنکابن حمید فغانی لنگرودی گروه شیلات دانشگاه آزاد اسلامی واحد تنکابن محمود رضا اویسی پور گروه شیلات دانشگاه علوم کشاورزی و منابع طبیعی گرگان

the aim of this study was to investigate the effect of chemical fertilizer and composite of organic and chemical fertilizer on lernaeasis in cultured cyprinids was performed in two treatments and three replications in each, in 6 one-hectare ponds. in first treatment only chemical fertilizer and in the second treatment the composite of organic and chemical fertilizer were used. the other rearing...

2000
X. P. Pang

being an environment friendly and more sustainable farming system. Ironically, scientists one-half century Groundwater has become increasingly degraded by NO3, and this ago devoted much research emphasis to providing farmdegradation has been partially attributed to the use of commercial inorganic N fertilizers. Conversion from conventional fertilizer maners information on the beneficial use of ...

2016
Jichen Wang Chao Xue Yang Song Lei Wang Qiwei Huang Qirong Shen

Maintaining soil fertility and the microbial communities that determine fertility is critical to sustainable agricultural strategies, and the use of different organic fertilizer (OF) regimes represents an important practice in attempts to preserve soil quality. However, little is known about the dynamic response of bacterial communities to fertilization regimes across crop growth stages. In thi...

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