EFFECT OF PLANTING DATE ON PRODUCTIVITY OF MAIZE (ZEA MAYS L. SSP.) IN SOUTHERN KAZAKHSTAN.

Autor: Israilovich, Nurbekov Aziz, Sydyk, Dossymbek, Chorsham, Ulugov, Ibragimovna, Rakhimova Dilobar
Předmět:
Zdroj: European Science Review; Sep/Oct2020, Issue 9/10, p12-17, 6p
Abstrakt: Kazakhstan's 16 million population occupy a land area of 2.7 million square kilometers, which is 70% of the land of Central Asia, but only 30% of the total population of the region. About 15 M ha of Kazakhstan's land area is used for crop production. The national average maize yield is about 4.6 tons ha-1, while potential exists for increasing the yield to over 8 tons ha-1 through increased use of improved hybrids or varieties, fertilizers and good crop husbandry including optimum planting date. The main objective of this experiment was to study different planting date in the irrigated conditions of South Kazakhstan province. Taking this into account field experiment was conducted in 2018-2019 year, in Chymkent province of Kazakhstan. A randomized complete block design with four replications was established to study yield potential and economics of improved fodder production. The experimental data analysis was performed using GenStat program 17th edition. Four planting dates April 15, April 30, May 15 and May 30 were evaluated to study maize biomass ad grain yield including other agronomic traits. The planting date analysis showed that the best sowing date was April 30, and biomass and grain yields of other three dates were relatively lower. The results of this study show that planting dates have significant effects on number of plants, biomass and grain yield in maize. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index