+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

The significance of nitrogen phosphorus and potassium fertilizers on yield and smut incidence of corn



The significance of nitrogen phosphorus and potassium fertilizers on yield and smut incidence of corn



Journal of Agronomy & Crop Science 167(4): 269-276



The significance of N, K and P fertilizers on corn yield and smut incidence was evaluated in the field during the seasons 1988 and 1989. Rates of fertilizers were 30, 60 and 90 kg N/acre; 0, 50 and 100 kg K2O/acre and 0 and 30 kg P2O5/acre. The corn plants were artificially inoculated with [Ustilago] maydis spore-suspension at 6-leaf growth stage. The results showed that N fertilization acted to enhance N content of ear-leaf and smut index and imposed depressing effects on leaf K. Unlike N, enhanced K-fertility performed opposite results on leaf N and smut index. A significant N .times. K interaction was detected on ear-leaf K and smut index, due to the antagonistic effects between ions. Grain yield data showed positive response to each N, K and P application, but the effect was much greater at the highest application rates. Yield losses were clearly pronounced, along all of the applied nutrient fertilizers, on plants where galls are located above ear than those with galls below ear. On average, the relative losses were 12.8 and 5.9%, respectively, compared with 3.7% for the main plot treatment. The 2-way interaction (except N .times. P) showed variable effects on yield performance.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 007935505

Download citation: RISBibTeXText


Related references

The significance of NPK fertilizers on yield and smut incidence of corn. Journal of Agronomy and Crop Science 167(4): 269-276, 1991

Effects of nitrogen phosphorus and potassium fertilizers on the yield and quality of corn silage. Communications in Soil Science and Plant Analysis 7(2): 145-167, 1976

On the effect of different amounts of nitrogen, phosphorus and potassium fertilizers on the content of nitrogen, phosphorus and potassium in above-ground organs of corn plants. Agrohemija 12 381-394, 1972

Influence of soil management and climatic factors on the yield response by corn m zea mays m to nitrogen phosphorus and potassium fertilizers. Agronomy Journal 62(6): 736-740, 1970

The yield, growth and chemical composition of corn as influenced by hybrids and high rates of nitrogen, phosphorus and potassium fertilizers. Diss. Abst, 29: 1238B p, 1968

An experiment measuring effects of Nitrogen, Phosphorus and Potassium fertilizers on yield and Nitrogen, Phosphorus and Potassium contents of grazed grass. J Agr Sci 67(1): 121-128, 1966

Contribution to knowledge of the significance of fertilizing maize with nitrogen, phosphorus and potassium fertilizers for its yield, chemical composition and nutrient uptake. Arhiv za Poljoprivredne Nauke 48(172): 351-367, 1987

An experiment begun in 1958 measuring effects of nitrogen phosphorus and potassium fertilizers on yield and nitrogen phosphorus and potassium contents of grass 2. residual effects on arable crops 1968 1976. Journal of Agricultural Science 95(3): 583-596, 1980

An experiment begun in 1958 measuring effects of nitrogen phosphorus and potassium fertilizers on yield and nitrogen phosphorus and potassium contents of grass 1. effects during 1964 1967. Journal of Agricultural Science 95(3): 575-582, 1980

Separate determination of optimum total doses of nitrogen + phosphorus + potassium and ratios nitrogen phosphorus : potassium in fertilizers. 8. Effect and aftereffect of fertilizers on the quality of sugarbeet and spring wheat yields. Agrokhimiia (9) 3-10, 1983

Uptake of nitrogen, phosphorus, and potassium by Mat Rush and effects of nitrogen and potassium fertilizers on plant yield and quality in paddy field soil. Journal of Plant Nutrition 26(4): 757-768, 2003

On the effect of bean d yield of the application of different types of organic compost material and the presence of mineral fertilizers with phosphorus nitrogen phosphorus and phosphorus potassium. Anon Reunion Latinoamericana De Fitotecnia Resumenes De Los Trabajos Cientificos Vii (7th Latin America Plant Technique Meeting ) Maracay, Venezuela, September 17-23, 204-205, 1967

Responses of dry beans d to applications of some undecomposed organic materials in the presence of mineral fertilizers containing phosphorus phosphorus potassium nitrogen phosphorus or nitrogen phosphorus potassium. Bragantia: 5-344, 1967

Effect of potassium fertilizers on yield uptake and utilization of nitrogen, phosphorus and potassium by plants of winter rye. Agrokhimiya (9): 55-60, 1975

Effect of forms of nitrogen fertilizers on the chemical composition of grain and removal of nitrogen, phosphorus and potassium by the wheat yield. Izvestiia Sibirskogo otdeleniia Akademii nauk SSSR Seriia biologicheskikh nauk: (3) 94-100, 1980