The root-layer regulation based on the depth of phosphate fertilizer application of summer maize improves soil nitrogen absorption and utilization

2019 ◽  
Vol 46 (2) ◽  
pp. 238-248
Author(s):  
Bin ZHAO ◽  
Xiao-Ying CHEN ◽  
Kun HAN ◽  
Shu-Ting DONG ◽  
Peng LIU ◽  
...  
Keyword(s):  
Soil Nitrogen ◽  
Phosphate Fertilizer ◽  
Fertilizer Application ◽  
Nitrogen Absorption ◽  
Summer Maize

scholarly journals Biological and Chemical Phosphorus Fertilizers Effect on Yield and P Accumulation in Rapeseed (Brassica napus L.)

2012 ◽  
Vol 40 (2) ◽  
pp. 210 ◽  
Author(s):  
Hamid MADANI ◽  
Mohammad Ali MALBOOBI ◽  
Kioomars BAKHSHKELARESTAGHI ◽  
Agnieszka STOKLOSA
Keyword(s):  
Seed Yield ◽  
Block Design ◽  
Ammonium Phosphate ◽  
Phosphate Fertilizer ◽  
Fertilizer Application ◽  
Interaction Effects ◽  
Brassica Napus L ◽  
Sowing Time ◽  
Plant Seed ◽  
Plant Seed Oil

A field experiment was conducted for investigation of different phosphorus fertilizer sources and their importance in rapeseed farms on 2007 at Arak, Iran. Ammonium phosphate fertilizer with 50% P2O5 (APF) was as chemical phosphorus sources with 3 rates of application and Phosphor solublizing bacteria (PSB) was as biological phosphorus surcease in 4 levels. Experiment was factorial arrangement in randomized complete block design with 3 replications. APF levels were control (AP0), 125kg/ha APF (AP1) and 250kg/ha (AP2) application and PSB levels were, control (PSB0), PSB at sowing time only (PSB1), PSB as top dress fertilizer after over wintering only (PSB2) and PSB at dual fertilizing in sowing time and also after over wintering (PSB3). The statistical analyses were showed that the PSB3 treatment was a great treatment for increasing seed yield. The heist rate of seed yield was recorded at 9.9t/ha under dual fertilizing in sowing time and after rosette over wintering stage. The interaction effects of phosphorus solublizing bacteria and ammonium phosphate fertilizer application had not significant effect on plant height, biomass yield, number of silique per plant, seed oil percent and seed yield. Interaction effects of phosphorus solublizing bacteria and ammonium phosphate fertilizer application were significant for plant tissues phosphorus content.

LONG-TERM EFFECTS OF ROW SPACING AND FERTILIZER ON THE PRODUCTIVITY OF RUSSIAN WILD RYEGRASS

1968 ◽  
Vol 48 (1) ◽  
pp. 75-84 ◽  
Author(s):  
T. Lawrence ◽  
D. H. Heinrichs
Keyword(s):  
Ammonium Phosphate ◽  
Phosphate Fertilizer ◽  
Fertilizer Application ◽  
Forage Yield ◽  
Row Spacing ◽  
Long Term Effects ◽  
Forage Production ◽  
Bare Ground ◽  
Drought Period

A study was conducted from 1947 to 1966 to determine the long-term effects of row spacings and applications of ammonium phosphate fertilizer (16–20–0) on the productivity and persistence of Russian wild ryegrass, Elymus junceus Fisch.The optimum row spacing for highest seed production was 0.9 m, whereas for highest forage production it was 0.6 m. The 280-kg/ha rate of fertilizer significantly increased the seed and forage yield over the 151-kg/ha rate, which in turn significantly increased the yield over the zero fertilizer treatment.Increases in precipitation in August and September increased the seed yield of Russian wild ryegrass the following year. Significant positive correlations were found between forage yields and precipitation during March, April, May, and the previous September for practically all treatments.Width of row increased with age of stand. During the 19-year period there was still bare ground between the grass rows seeded 0.9 and 1.2 m apart. These areas of bare ground were slightly narrower when fertilizer was used, indicating that fertilizer application tended to accelerate row-width development.Russian wild ryegrass was found to have excellent cold tolerance, drought tolerance and persistence. It survived through a long drought period and resisted invasion by weeds and volunteer grass seedlings after the third crop year.

scholarly journals Improvement of phosphate fertilizer application toAzolla

1988 ◽  
Vol 34 (4) ◽  
pp. 557-569 ◽  
Author(s):  
Iwao Watanabe ◽  
Ma.Theresa Lapis ◽  
Reynaldo Oliveros ◽  
Wilbur Ventura
Keyword(s):  
Phosphate Fertilizer ◽  
Fertilizer Application

Input of Cd from agriculture phosphate fertilizer application in China during 2006–2016

2020 ◽  
Vol 698 ◽  
pp. 134149 ◽  
Author(s):  
Hui Li ◽  
Zhiliang Yang ◽  
Mingwei Dai ◽  
Xinyue Diao ◽  
Shunli Dai ◽  
...  
Keyword(s):  
Phosphate Fertilizer ◽  
Fertilizer Application

scholarly journals Comparative Use of Soil Organic and Inorganic Amendments in Heavy Metals Stabilization

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Agustina Branzini ◽  
Marta Susana Zubillaga
Keyword(s):  
Heavy Metals ◽  
Organic Matter ◽  
Extraction Procedure ◽  
Phosphate Fertilizer ◽  
Fertilizer Application ◽  
Negative Effects ◽  
Soil Matrix ◽  
Remediation Strategies ◽  
Potential Improvement ◽  
Greenhouse Assay

Remediation strategies are capable to mitigate negative effects of heavy metals (HMs) on soils. The distribution of cooper (Cu), zinc (Zn), and chromium (Cr) was evaluated in a contaminated soil after adding biosolid compost (BC) and phosphate fertilizer (PF). A greenhouse assay and sequential extraction procedure were performed to determine the fractionation of HM in contaminated and remediated soil. In BC treatment, among 4 to 6% of Cu was associated with soil humic substances. Without amendments and with fertilizer application, Zn solubility increased by 15.4 and 8.4%, respectively, with experiment time. Although Cr was significantly adsorbed to the inorganic fraction, with compost application there was a transfer to organic fraction. A single amendment application is not suitable for immobilizing all metals of concern, because there are diverse union’s behaviors between HM and soil matrix. As the organic matter and phosphate fertilizer were effective in reducing mobility of Cu, the organic matter was more effective in the immobilization of Cr, and inorganic amendment induced the Zn precipitation, results from this pilot study suggest a combined use of these two amendments for soil remediation strategies. However, liming may be further needed to prevent soil acidification on longer time scales. Also, we propose the use of chemical and biological remediation strategies for potential improvement of effectiveness.

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