Effects of nitrogen fertilization for bud initiation and tiller growth on yield and quality of rice ratoon crop in central China

SUMMARYBy comparing flowered and non-flowered plants of the same age (where flowering was inhibited by photoperiod control), cane yield gains due to prevention of flowering were estimated to be 56·6% in a plant crop and 33·8% in a ratoon crop. Sugar gain due to prevention of flowering was 69·1% in the plant and 35·4% in the ratoon crop. A simple negative linear relation was found between cane (and sugar) yield per plant and the proportion of canes that flowered. There was no significant difference in fibre content of flowered and non-flowered canes. The influence of loss of growth, side-shoot production and pithiness on the yield of flowered canes are discussed.

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Enhancement of Yield and Quality of Grains through Intensive Nitrogen Fertilization during Stem Elongation in the High-yield Wheat Cultivar for Bread “Setokirara”

Japanese Journal of Crop Science ◽

10.1626/jcs.88.98 ◽

2019 ◽

Vol 88 (2) ◽

pp. 98-107

Author(s):

Keisuke Mizuta ◽

Hideki Araki ◽

Tadashi Takahashi

Keyword(s):

Nitrogen Fertilization ◽

Wheat Cultivar ◽

Stem Elongation ◽

High Yield ◽

Yield And Quality

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Effects of nitrogen applied through new carriers on yield and quality of sugarcane

The Journal of Agricultural Science ◽

10.1017/s0021859600072245 ◽

1990 ◽

Vol 114 (2) ◽

pp. 225-230 ◽

Cited By ~ 8

Author(s):

R. L. Yadav ◽

R. Kumar ◽

R. S. Verma

Keyword(s):

Population Density ◽

Direct Application ◽

Cumulative Effects ◽

Ratoon Crop ◽

N Application ◽

Yield And Quality ◽

Neem Cake Coated Urea ◽

Coated Urea ◽

Plant Crop

SUMMARYIn a field experiment at Lucknow in 1985/87 and 1986/88, the ‘new’ N carriers urea super granules (USG), neem-cake-coated urea (NCU) and dicyandiamide-treated urea (DCD) and the traditional source of N, prilled urea (PU), were used to supply 150 kgN/ha to the plant crop (first crop after planting) of the cultivar Col 148. The ratoon crop was fertilized at 0 and 150 kgN/ha with PU over all the plant crop treatments. In both plant and ratoon crops, N application increased cane yields but decreased quality: differences in yield resulting from use of the new carriers were not significant, though the fertilizers tended to increase the final plant population density. Uptake and recovery of N were significantly greater using USG, NCU and DCD than using PU. The direct effect of N was 184 kg cane/kg of N applied to the ratoon crop but residual and cumulative effects of N applied to the plant crop on yield and quality of the ratoon crop were small. Adequate direct application of N is therefore suggested for increasing the yields of ratoon cane.

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Effect of inoculation and nitrogen fertilization on nodulation, seed yield and quality of soya beans

The Journal of Agricultural Science ◽

10.1017/s0021859600068994 ◽

1972 ◽

Vol 78 (2) ◽

pp. 179-182 ◽

Cited By ~ 1

Author(s):

S. Abu-Shakra ◽

A. Bassiri

Keyword(s):

Amino Acids ◽

Seed Yield ◽

Nitrogen Fertilization ◽

Seed Weight ◽

Seed Oil ◽

Dry Weight ◽

Yield And Quality ◽

Oil Concentration ◽

Sulphur Amino Acids

SUMMARYSoya beans grown on land planted the previous year with inoculated soya beans produced more nodules, lodging, seed yield, 1000 seed weight, and protein content and less seed oil concentration as compared to those grown on land that was planted with non-inoculated soya beans. Nitrogen fertilization (120kg N/ha) reduced the total number of nodules per plant. Increasing inoculation rates of the seed increased the dry weight of nodules per plant. Location, nitrogen fertilization, and inoculation increased or decreased the levels of certain amino acids but had no significant effect on the sulphur amino acids, cystine and methionine.

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