نتایج جستجو برای: fertilizer application

تعداد نتایج: 776471  

2014
Ellen S. Romero

Two studies were conducted on the use of solid and microbial fertilizers on rice for four cropping seasons (June to October 2010, January to April 2011, June to October 2011 and January to April 2012) at the RM-CARES experimental area, Philippines. One study was conducted in a converted organic area certified organic by the Organic Certification Center of the Philippines (OCCP) and the other on...

2016
Boubié Vincent Bado Papa Abdoulaye Seck Valère Cesse Mel Alassane Aw Mandiaye Diagne

One of the main factors limiting the yield and productivity of irrigated rice in the Sahel of West Africa is the high cost of fertilizers and inefficient use of nutrients in the cropping systems. A two-year experiment was conducted over four consecutive seasons at Ndiaye (16°11’N, 16°15’W) and Fanaye (16°32’N, 15°11’W) along the Senegal River Valley to investigate alternative fertilizer managem...

Journal: :Tree physiology 1997
G L Stoneman D S Crombie K Whitford F J Hingston R Giles C C Portlock J H Galbraith G M Dimmock

We studied the effects of five thinning treatments (T1 = 5.5, T2 = 11, T3 = 16.5, T4 = 22.5 and T5 = 28.5 m(2) ha(-1) basal area under bark) x two fertilizer treatments (F0 = unfertilized and F1 = fertilized with 400 kg ha(-1) N plus 229 kg ha(-1) P) on growth and water relations of pole-sized Eucalyptus marginata J. Donn ex Sm. trees growing in southwestern Australia. Thinning reduced leaf are...

2015
Kamil Sabier Saeed Sarkawt Abdulla Ahmed Ismael Ahmaed Hassan Hamed Ahmed

A comparative study on the effect of chemical fertilizers and bio-fertilizers was done on growth and biochemical parameters in cucumber plant (Cucumis sativus L.). An experiment was conducted in randomized completely blocks design (RCBD) with four replicates. The treatment were (T1= control, T2= bio-fertilizer, T3= chemical and T4= combination treatment (biofertilizer and 1⁄2 chemical)) at Agri...

Journal: :مدیریت خاک و تولید پایدار 0
سبحه نیک مهر دانشجوی کارشناسی ارشد دانشگاه ولی عصر رفسنجان عبدالرضا اخگر هیات علمی دانشگاه ولی عصر رفسنجان شهاب مداح حسینی هیات علمی دانشگاه ولی عصر رفسنجان وحید مظفری هیات علمی دانشگاه ولی عصر رفسنجان

phosphate solubilizing bacteria are a group of plant growth promoting rhizobacteria (pgpr) that increase growth and yield of plant by enhancing insoluble phosphates. in this study, a greenhouse experiment was carried out to investigate the effect of phosphate solubilizing bacteria and phosphorous fertilizer on the yield and chemical components of sesame. this experiment was conducted in factori...

2014
Cheng-Wei Liu Yu Sung Bo-Ching Chen Hung-Yu Lai

Nitrogen is an essential element for plant growth and development; however, due to environmental pollution, high nitrate concentrations accumulate in the edible parts of these leafy vegetables, particularly if excessive nitrogen fertilizer has been applied. Consuming these crops can harm human health; thus, developing a suitable strategy for the agricultural application of nitrogen fertilizer i...

2015
Hamed Ahmed

A comparative study on the effect of chemical fertilizers and bio-fertilizers was done on growth and biochemical parameters in cucumber plant (Cucumis sativus). An experiment was conducted in Randomized Completely Blocks Design (RCBD) with four replicates. The treatment were (T1 = Control, T2 = Bio-fertilizer, T3 = Chemical and T4 = Combination treatment (biofertilizer and 1/2 chemical)) at Agr...

2016
Natalia B Ivleva Jeanna Groat Jeffrey M Staub Michael Stephens

Nitrogen availability is crucial for crop yield with nitrogen fertilizer accounting for a large percentage of farmers' expenses. However, an untimely or excessive application of fertilizer can increase risks of negative environmental effects. These factors, along with the environmental and energy costs of synthesizing nitrogen fertilizer, led us to seek out novel biotechnology-driven approaches...

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 ...

2016
Qingxiang Yang Hao Zhang Yuhui Guo Tiantian Tian

Animal manure is commonly used as fertilizer for agricultural crops worldwide, even though it is believed to contribute to the spread of antibiotic resistance from animal intestines to the soil environment. However, it is unclear whether and how there is any impact of manure fertilization on populations and community structure of antibiotic-resistant endophytic bacteria (AREB) in plant tissues....

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