to study the effect of different fertilizing systems on macro and micro nutrients uptake by annual medic (medicago scutellata cv. robinson) an experiment was conducted under dry farming and irrigated conditions at two research stations (sararood dryland agricultural research institute and soil fertility research station in mahidasht) during 2009 growing season. the experimental treatments consi...

BACKGROUND: Fertilizer management plays an important role for obtaining satisfactory yields and to increase crop productivity. Nutrient management may be achieved by the involvement of organic sources, bio fertilizers, and micro-nutrients. OBJECTIVES: Assessment effect of chemical and biological fertilizer on seed yield, its components and plant height of...

Abstract An optimal use of organic composts derived from animal and food wastes could provide an opportunity to achieve both sustainable crop production soil quality, a lot research has provided the evidence. The nitrogen efficiencies (NUEs) is definition evaluate interaction between (N), and, due this reason, widely used in agriculture. current work tried NUEs as indicator N acquisition capaci...

found, had they considered N derived from the soil (Keeney, 1982; van der Ploeg et al., 1997). Using the Worldwide, nitrogen use efficiency (NUE) for cereal production same references and assumptions in Table 1, cereal (wheat, Triticum aestivum L.; corn, Zea mays L.; rice, Oryza sativa L. and O. glaberrima Steud.; barley, Hordeum vulgare L.; sorghum, NUEs are 42 and 29% in developed and develop...

The greatest challenge of our time is to meet the global food demand by producing enough without harming environment. Over application and misuse synthetic fertilizer a major that results in lower use efficiency (FUE), stagnated crop yield, environmental pollution. In this review study, three alternative fertilization options (AFOs), such as organic enhanced-efficiency (EEFs), secondary, micron...

• Session 1: Objectives, outcomes, and trade-offs associated with alternative fertilizer promotion programmes. • Session 2: What determines the cost of fertilizer at the farm gate? Cost build-up analysis (Bumb, g p y (IFDC) • Session 3: Fertilizer profitability analysis (Rashid and Jayne, IFPRI/MSU) • Session 4: Experiences and lessons learned with alternative fertilizer promotion efforts (Mino...

plant photosynthetate partitioning is important in seed yield formation. in this research, in order to study grain filling procedure of chickpea in the presense of drought stress and nitrogen (n) fertilizer on remobilization rate, final grain weight and grain yield were measured. experiment was performed in an split-factorial using randomized complete block design with three replications. droug...

abstract- declining land productivity associated with decreasing soil organic carbon and nutrients is a significant issue in monoculture production. the field experiment with different rates of fertilizer systems (60 kg ha-1 n + 100 kg ha-1 p, 300 kg ha-1 bio-organic (organic fertilizer), 3 kg ha-1 bioumik (biofertilizer), 30 kg ha-1  n + 50 kg ha-1 p + 150 kg ha-1 bio-organic fertilizer and 30...