ENERGY EFFICIENCY OF MINERAL AND ORGANIC FERTILIZERS UNDER CROPS OF SHORT CROP ROTATION IN THE IRRIGATED CONDITIONS OF SOUTHEAST OF KAZAKHSTAN

The energy efficiency calculations of application of various kinds of fertilizers for crops (flax, barley, rape, soybean) of short crop rotation are presented in the article. It is shown that the value of the energy coeffi cient depends both on the types of fertilizers and on the biological characteristics of the studied crops. The least energy - consuming (K - 9.8) using mineral fertilizers turned out to be the soybean, which does not require nitrogen fertilizers in comparison with others (flax, barley, rape).