The effect of soil water availability level on sugar corn yield

• Main Authors: Z. S. Shibzukhov, Yu. M. Shogenov, A. A. Gadieva
• Format: Article
• Language: Russian
• Published: Maykop State Technological University 2019-12-01
• Series: Новые технологии
• Subjects: irrigation regime; hybrid; sweet corn; survival; phenological observations; seedling density; stem height; crop structure; yield
• Online Access: https://newtechology.mkgtu.ru/jour/article/view/303

In optimizing the technology for growing sweet corn, the level of soil water availability is important. You need to know the level of soil moisture necessary for optimal growth and development of corn plants. In this regard, development of recommendations that are optimal in terms of moisture supply for the best growth and development of sweet corn is an urgent topic. In field experiments, an early-season Spirit hybrid was used as research objects.The following options for moisture supply were included in the experiment scheme: 1) without irrigation, 2) 80% of HB at a depth of 0.5 m (K); 3) 80% of HB at a depth of 0.3 m; 4) 60% of HB at a depth of 0.5 m; 5) 60% of HB at a depth of 0.3m. Spirit hybrid was used in the studies, which was sown in a wide-row way of sowing of 70 cm with a sowing rate of 55 thousand plants / ha.All the observations and analyzes provided for by the program have been carried out in accordance with the relevant GOSTs and methods adopted in scientific institutions. Irrigation conditions have determined the yield of corn cobs. The control option is 20.4 t / ha of cobs. In option No. 3 with a smaller depth of moisture content in the soil up to 0.3 m, the highest yield of 23.1 t / ha has been obtained experimentally. With a moisture supply option of up to 60% HB (4th and 5th options), we observe a decline in grain yield by 4.8 and 3.2 t / ha, respectively, or 24 and 17%. Without irrigation, the loss of grain yield has been 9.6 t / ha.