Tomato nitrogen accumulation and fertilizer use efficiency on a sandy soil, as affected by nitrogen rate and irrigation scheduling

2009 ◽  
Vol 96 (8) ◽  
pp. 1247-1258 ◽  
Author(s):  
L. Zotarelli ◽  
M.D. Dukes ◽  
J.M.S. Scholberg ◽  
R. Muñoz-Carpena ◽  
J. Icerman
Keyword(s):  
Sandy Soil ◽  
Irrigation Scheduling ◽  
Nitrogen Accumulation ◽  
Nitrogen Rate ◽  
Fertilizer Use Efficiency ◽  
Fertilizer Use ◽  
Use Efficiency

Fertilizer Use Efficiency and Nitrate Leaching in a Tropical Sandy Soil

2003 ◽  
Vol 32 (2) ◽  
pp. 599-606 ◽  
Author(s):  
J. Nyamangara ◽  
L. F. Bergström ◽  
M. I. Piha ◽  
K. E. Giller
Keyword(s):  
Sandy Soil ◽  
Nitrate Leaching ◽  
Fertilizer Use Efficiency ◽  
Fertilizer Use ◽  
Use Efficiency

scholarly journals Nitrogen Fertilizer Use Efficiency of Pepper as Affected by Irrigation and Fertilization Regime

2016 ◽  
Vol 44 (2) ◽  
pp. 525-532 ◽  
Author(s):  
Vjekoslav TANASKOVIK ◽  
Ordan CUKALIEV ◽  
Rameshwar S. KANWAR ◽  
Lee K. HENG ◽  
Mile MARKOSKI ◽  
...  
Keyword(s):  
Nitrogen Fertilizer ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Irrigation Scheduling ◽  
Yield Potential ◽  
Percentage Increase ◽  
Fertilizer Use Efficiency ◽  
Fertilizer Use ◽  
Use Efficiency ◽  
Drip Fertigation

The pepper producers in the Republic of Macedonia have used drip irrigation systems to increase yield in recent years, but more research is still needed, related to irrigation scheduling and precise requirement of nitrogen fertilizer to maximise pepper yield. Therefore, a two year experiment was conducted in a plastic house to determine the nitrogen fertilizer use efficiency (NFUE) and yield potential of pruned pepper as affected by irrigation and fertilization regime. Four experimental treatments were applied in this study. Three of the treatments were drip fertigated (DF1, DF2, DF3), while the fourth treatment was furrow irrigated with conventional fertilization (ØB). The labelled urea with 1% concentration of a stable isotope of nitrogen (15N) was applied for determination of NFUE. The results of this study clearly showed that increased NFUE and pepper yield depend on irrigation and fertilization regime. Namely, NFUE was significantly increased with the application of nitrogen fertilizer through drip irrigation system as compared to conventional fertilization with furrow irrigation. Also, drip fertigation frequency positively affects percentage increase of NFUE. Furthermore, our results showed that drip fertigation treatments resulted in significantly higher pepper yields in comparison to conventional fertilization. Also, drip fertigation frequency at four and two days (DF2 and DF1) resulted in higher yields when compared with drip fertigation scheduled by using tensiometers (DF3). Generally, to reach acceptable pepper yield with high NFUE, we recommend drip fertigation with a frequency of two to four days combined with two main shoots of pruned pepper in order to increase farmer’s income and to minimize the environmental impact.

Effects of Sandy Soil Amendment on Soil Moisture and Growth Status of Millet with Rainfed Sandy Soil in a Semi-Arid Region

2015 ◽  
Vol 1092-1093 ◽  
pp. 1234-1242 ◽  
Author(s):  
Jun Zhen Mi ◽  
Jing Hui Liu ◽  
Sheng Tao Xu ◽  
Bao Ping Zhao ◽  
Man Hong Yang ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Grain Yield ◽  
Sandy Soil ◽  
Arid Region ◽  
Soil Amendment ◽  
Fertilizer Use Efficiency ◽  
Fertilizer Use ◽  
Use Efficiency ◽  
Semi Arid Region ◽  
Semi Arid

Effect of different amount sandy soil amendment on soil moisture and millet growth was studied in a rainfed field experiment in a semi-arid region in northern China in 2011-2013. Three-year results show: sandy soil amendment treatments all increased soil moisture, they are T3>T4>T5>T2>T1>CK, and with depth of soil layer increasing, differences of among treatments reduced; it can significantly (P<0.05) increased plant height of millet and dry matter accumulation above-ground by 1.77%-25.67% and 3.21%-104.79% respectively compared with CK; grain yield under sandy soil amendment is significantly (P<0.05) higher than CK, yield of 18000 kg·hm-2 and 24000 kg·hm-2 treatments is higher than others,being 5102.55 kg·hm-2 and 5035.85 kg·hm-2, biological yield, water and fertilizer use efficiency have the same effect as grain yield. Above all, using sandy soil amendment can improve the condition of soil moisture and fertilizer, sufficiently use limited rainfall, increase crop yield, increases water and fertilizer use efficiency, treatments with 18000 kg·hm-2,24000 kg·hm-2 sandy soil amendment show a better effect on resisting drought, retaining fertilizer and increasing yield under millet production in all the treatments.

Fertilizer Use Efficiency and Nitrate Leaching in a Tropical Sandy Soil

2003 ◽  
Vol 32 (2) ◽  
pp. 599 ◽  
Author(s):  
J. Nyamangara ◽  
L. F. Bergström ◽  
M. I. Piha ◽  
K. E. Giller
Keyword(s):  
Sandy Soil ◽  
Nitrate Leaching ◽  
Fertilizer Use Efficiency ◽  
Fertilizer Use ◽  
Use Efficiency

scholarly journals Improving Nitrogen and Phosphorus Fertilizer Use Efficiency for Florida's Horticultural Crops

2010 ◽  
Vol 20 (1) ◽  
pp. 23-33 ◽  
Author(s):  
Thomas A. Obreza ◽  
Jerry B. Sartain
Keyword(s):  
Best Management Practices ◽  
Management Practices ◽  
Material Selection ◽  
Nutrient Use Efficiency ◽  
Irrigation Scheduling ◽  
Water Soluble ◽  
Future Research ◽  
Fertilizer Use Efficiency ◽  
Fertilizer Use ◽  
Use Efficiency

Florida's citrus (Citrus spp.), vegetable, and turfgrass industries must improve nitrogen (N) and phosphorus (P) fertilizer use efficiency to remain sustainable in an era of emerging environmental policies designed to protect water quality. Producers have traditionally used water-soluble N and P fertilizers because they are plentiful and economical. Improving nutrient use efficiency (NUE) is being addressed through implementation of best management practices (BMPs) such as nutrient management planning, proper fertilizer material selection, better application timing and placement, and improved irrigation scheduling. Emerging technology that will aid in this effort includes increased use of enhanced efficiency fertilizers (EEFs), organic soil amendments, fertigation, and foliar fertilization. However, any new technology shown to improve NUE must be economically feasible before it can be considered a BMP. Future research in this area will aim to improve the economics of EEFs and precision fertilizer application.

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