The influence of temperature, soil moisture content, and mineral supply on growth and some fractions of the chemical composition of cocksfoot (Dactylis glonierata L.)

Presenter Information

• A S. Obraztsov, All-Union Williams Forage Research Institute, Moscow Region, Soviet Union
• V M. Kovalev, All-Union Williams Forage Research Institute, Moscow Region, Soviet Union
• V G. Golovaty, All-Union Williams Forage Research Institute, Moscow Region, Soviet Union
• KH K. Khudyakova, All-Union Williams Forage Research Institute, Moscow Region, Soviet Union

Publication Date

1977

Description

Experiments in the climatic chamber and in the greenhouse have shown the quantitative dependence of plant growth and productivity as well as of the carbohydrate and nitrate con­tent of Dactylis glomerata L. on temperature, soil moisture conient, and the level of NPK fertilization. Daily means of air temperature of 22 to 23 °C, a soil moisture content coming up to 78-84 p.c. of total moisture capacity, and ap­plication of 60-80 mg N/kg soil (N: P: K ratio 6: 1 : 2) were found to be optimal for plant growth and productivity. Soil moisture deficit raises the nitrate concentration in D. glomera­ta, whereas increased phosphorus and potas­sium supply reduces the plant nitrate content. The accumulation of sugars is most strongly influenced by air temperature. Variation of the other factors investigated did not lead to maximum soluble carbohydrate content.

Citation

Obraztsov, A S.; Kovalev, V M.; Golovaty, V G.; and Khudyakova, KH K., "The influence of temperature, soil moisture content, and mineral supply on growth and some fractions of the chemical composition of cocksfoot (Dactylis glonierata L.)" (1977). IGC Proceedings (1977-2023). 19.
(URL: https://uknowledge.uky.edu/igc/1977/sess1/19)

Archival?

Archival