نتایج جستجو برای: fertilizer usage based on soil analysis

تعداد نتایج: 10463721  

1999
Ephraim Nkonya Andrew Barkley Steve Hamilton Daniel Bernardo

This paper develops a soil conservation model that is relevant to smallholder farmers who applylittle or no fertilizer. Empirical results drawn from northern Tanzania imply that, ignoringfertility mining problem in model specification leads to overestimation of profits for farms thatapply little or no fertilizer. The model also shows that, the impact of output price on soilc...

عابدینی آبکسری, حسن , هاشم‌آبادی, داود , کاویانی, بهزاد ,

Application of bio-fertilizers and organic compounds is a way to reduce the use of chemical fertilizers. In order to study the effects of organic compounds and phosphate bio-fertilizer on some quantitative and qualitative attributes of ivy geranium (Pelargonium peltatum), a factorial experiment based on randomized complete blocks design (RCBD) was carried out using two factors including phospha...

2013
G. Thirumaran M. Arumugam R. Arumugam

The present study an attempt has been made to investigate the effect of Seaweed Liquid Fertilizer of Rosenvigea intricata with or without chemical fertilizer on seed germination, growth, yield, pigment content and soil profile of Abelmoschus esculentus was analyzed. The seed germination, shoot length, root length, number of lateral roots, number of leaves, number of vegetables, length of vegeta...

2017
Apostolos Kalivas Ioannis Ganopoulos Fotis Psomopoulos Ioannis Grigoriadis Aliki Xanthopoulou Evangelos Hatzigiannakis Maslin Osathanunkul Athanasios Tsaftaris Panagiotis Madesis

Nutrients in the form of fertilizers and/or other additives such as amino acids, dramatically influence plant development and growth, plant nutrient composition and the level of soil pollution. Moreover, the treatment of soil microbiota is emerging as a new strategy in plant breeding to achieve desirable traits. Thus, integrated study of fertilizer application and soil microbiota might lead to ...

2018
M.W.C. Dharma-wardana

Phosphate fertilizers were first implicated by Schroeder and Balassa in 1963 for increasing the Cd concentration in cultivated soils and crops. This suggestion has become a part of the accepted paradigm on soil toxicity. Consequently, stringent fertilizer control programs to monitor Cd have been launched. Attempts to link Cd toxicity and fertilizers to chronic diseases are common. A re-assessme...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
سجاد کردی باشگاه پژوهشگران جوان و نخبگان، واحد خرم آباد، دانشگاه آزاد اسلامی، خرم آباد، ایران ماشاالله دانشور استادیار گروه زراعت و اصلاح نباتات، دانشکده کشاورزی، دانشگاه لرستان، خرم آباد، ایران منوچهر سیاح فر استادیار مرکز تحقیقات کشاورزی و منابع طبیعی خرم آباد، خرم آباد، ایران قدرت الله شاه کرمی استادیار گروه زراعت، دانشکده کشاورزی، دانشگاه آزاد اسلامی واحد خرم آباد، خرم آباد، ایران

to determine the correlation between grain yield and its components in some grain corn hybrids and their cause and effect relationships in various fertilizer application methods, an experiment was carried out as split plot based on randomized complete block design with two fertilizer application methods (urea foliar application and soil application method), four grain corn hybrids (ns 640, kons...

ژورنال: علوم آب و خاک 2007
قدرت‌اله سعیدی, ,

Sunflower (Helianthus annuus L.) can have an important role in vegetable oil production. Also, appropriate soil fertility is necessary to obtaine higher seed yield and quality of the crop. This experiment was conducted to investigate the effect of fertilizer treatments of macro and micronutrients on seed yield and other agronomic traits in sunflower. The effects of thirteen fertilizer treatemts...

Journal: :Journal of environmental quality 2005
Richard B Ferguson John A Nienaber Roger A Eigenberg Brian L Woodbury

A field study was initiated in 1992 to investigate the long-term impacts of beef feedlot manure application (composted and uncomposted) on nutrient accumulation and movement in soil, corn silage yield, and nutrient uptake. Two application strategies were compared: providing the annual crop nitrogen (N) requirement (N-based rate) or crop phosphorus (P) removal (P-based rate), as well as a compar...

Abdolali Gilani, Kamran Mohsenifar, Morteza Mohamadi

BACKGROUND: One of limitation factor in agricultural plants production in dry areas, supply requires water. Also nutrition crop management is a necessary strategy for achieve sustainable agriculture. OBJECTIVES: Current study was conducted to assessment the effects of different irrigation regimes and several amount of nitrogen fertilizer on seed nutrition...

2013
Junjian Li Yuanming Zheng Junxia Yan Hongjian Li Xiang Wang Jizheng He Guangwei Ding

The soil microbial community in reclaimed mining areas is fundamental to vegetative establishment. However, how this community responds to different regeneration scenarios and fertilizer treatments is poorly understood. This research evaluated plant and soil microbial communities from different regeneration scenarios and different fertilizer treatments. Regeneration scenarios significantly infl...

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