scholarly journals Study Of Soil Nitrogen Level And Splitting On Nutrient Uptake Around The Industries Of Chhattisgarh, India

2021 ◽  
Vol 12 (5) ◽  
pp. 21051632-21051632
Author(s):  
Preeti Verma
1973 ◽  
Vol 13 (60) ◽  
pp. 63 ◽  
Author(s):  
CL Tuohey

Two cropping rotations of fallow-wheat and four years of barrel medic (Medicago truncatula) pasture were used to obtain two levels of soil total nitrogen on a grey clay at Longerenong College, Dooen, Victoria. A semi-dwarf cultivar, Mexico 120, and a standard cultivar, Olympic, were then compared at the two levels of soil nitrogen over four years from 1964 to 1967. Mexico 120 outyielded Olympic by 1490 kg ha-1 in 1964 at the higher soil nitrogen level; however, it did not yield any better than Olympic at low soil nitrogen in that year nor at either soil nitrogen level in the other years. Mexico 120 had higher tiller survival, larger grain size, and shorter straw than Olympic in all years. In 1965 and 1966 its harvest index and the percentage of plant nitrogen in the grain responded more to higher soil nitrogen than that of Olympic.


jpa ◽  
1992 ◽  
Vol 5 (1) ◽  
pp. 137-142 ◽  
Author(s):  
R. J. Sabata ◽  
S. C. Mason

Agronomy ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 826 ◽  
Author(s):  
Bayou Bunkura Allito ◽  
Nana Ewusi-Mensah ◽  
Vincent Logah

This study reports the effectiveness of some selected rhizobium strains in enhancing nitrogen fixation and nutrient uptake in Vicia faba L. Multi-location field experiments were conducted for two years (2016 and 2017) using a split-plot in randomized complete block design. Treatments comprised six rhizobium strains as the main plot factor and three varieties of Vicia faba as the sub-plot factor. Non-inoculated plants with or without N fertilizer served as +N and −N controls, respectively. Peat carrier-based inoculant of each strain was applied at the rate of 10 g kg−1 seed. Data on nodulation were taken at the late-flowering stage, whereas nitrogen and phosphorus concentrations in plant parts were analyzed at physiological maturity. The total nitrogen difference method was employed to quantify nitrogen fixation. Location x rhizobium strain x variety interaction had a significant effect on nodule dry weight plant−1. Rhizobium strains significantly enhanced nodulation, nitrogen fixation, nutrient uptake and soil nitrogen balance. Inoculation with NSFBR-12 and NSFBR-15 resulted in the highest nitrogen fixed, nutrient uptake and soil nitrogen balance. Vicia faba inoculated with the two top performing strains, NSFBR-12 and NSFBR-15 fixed respectively 87.7% and 85.5% of the total nitrogen uptake. Non-inoculated plants fulfilled proportionately more of the total nitrogen uptake through nitrogen derived from the soil rather than fixed nitrogen. Soil available phosphorus and pH had appreciable influences on nitrogen and phosphorus uptake of inoculated Vicia faba. Inoculation with competitive and effective rhizobium strains can improve soil nitrogen balance, nitrogen fixation and nutrient uptake of Vicia faba.


1962 ◽  
Vol 13 (1) ◽  
pp. 10 ◽  
Author(s):  
M Mandryk

When plants (Nicotiana tabacum L. cv. Virginia Gold) were supplied with suboptimal levels of nitrogen, the acquired resistance to blue mould (Peronospora tabacina Adam) evoked by injection of spore suspensions of the same pathogen into stems was associated with dwarfing, reduction in leaf areas, nitrogen deficiency-like symptoms, and premature senescence. However, when plants were supplied with adequate nitrogen, no morphological changes were associated with acquired resistance. The protective effect of stem injection against subsequent leaf infection was shown to be persistent and not affected by plant vigour, age, or soil nitrogen level. The protective effect of stem injection against subsequent leaf infection was shown to be persistent and not affected by plant vigour, age, or soil nitrogen level.


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