Sowing time influence on the sweet corn productivity in the mountainous ecologically clean zone of Kabardino-Balkaria

¹ Kabardino-Balkarian State Agricultural University named after V.M. Kokov, Lenin Avenue, 1V, 360030 Nalchik, Russia
² Xinjiang Agricultural University, No. 311 Nongda East Road, 830052 Urumqi, People’s Republic of China

^* Corresponding author: konf07@mail.ru

Abstract

With a properly selected sowing time, the highest productivity of sweet corns is achieved. In the conditions of the mountainous zone of Kabardino-Balkaria, the timing of sowing sweet corn has not been studied, therefore, determining the optimal sowing time is one of the most important issues in the successful cultivation and obtaining high yields of sweet corn. In our studies, the sowing time influenced the survival rate of sweet corn plants. Optimal sowing favors the dynamic growth and development of plants, the root system, allows better assimilation of moisture in the soil, thus increasing the growth of green mass and the formation of larger and higher quality grains. Based on the analysis of data on the structure of yields, in all respects, the second sowing period (late April - early May) is ahead of other options, especially later sowing dates. The amount of products obtained depends on the weight of one earcorn. The number of marketable earcorns drops sharply at late sowing dates. The sharp decline in the productivity of sweet corn plants is explained by the fact that in the late sowing period, the soil moisture level is at a low level due to the rise in high temperatures.