Issn 305-9397. Ғылым және білім. 2022. №1-1 (66) issn 2305-9397
Ауыл шаруашылығы ғылымдары
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148 стимуляторов роста «Вымпел» 0,5 л/га и микроудобрений «Оракул» мультикомплекс 2,0 л/га в период отрастания люцерны и в фазе начала массового ветвления урожайность сухого сена составила 30,9 и 33,8 ц/га превысив контрольный вариант опыта на 11,3-13,3 ц/га. В среднем за 2 год урожайность сухого сена при поверхностном улучшении и с применением минеральных удобрений увеличилась в 1,8-1,9 раза, а при использовании стимуляторов роста, микроудобрений урожайность сена возросла в 1,6-1,7 раза по сравнению с необработанным контрольным вариантом опыта. ANNOTATION In the conditions of rainfed agriculture in southern Kazakhstan, alfalfa is the main fodder crop in field crop rotations. However, in various forms of agricultural formations, for various reasons, I leave alfalfa in the link of crop rotations for more than 4-5 years. Due to the infestation by animals after a 3-year runoff, the number of plants per unit area is thinned and clogged with weeds, as a result of which the productivity and fodder quality of hay are significantly reduced. Therefore, we are faced with the task of developing a surface improvement of sparse crops in conditions of rainfed agriculture in order to increase the yield of dry hay and their quality. The results of a two-year (2021-2022) study found that when spreading mineral fertilizers on sparse alfalfa crops, followed by surface loosening and their incorporation with chisel-shaped paws of processing tools to a depth of 12-14 cm and with harrowing with toothed harrows BZTS-1.0. As pests appear (phytonomus - Phytonomus variabilis), the insecticide Sharpei m.e. in the norm 0,2-0,3 l/ha contributed to an increase in the productivity of dry hay over the years of research up to 34.9-38.3 centners/ha, and against the background of surface treatment with the use of growth stimulants Vympel 0.5 l/ha and microfertilizers Oracle multicomplex 2.0 l/ha during the period of regrowth of alfalfa and in the phase of the beginning of mass branching, the yield of dry hay was 30.9 and 33.8 c/ha, exceeding the control variant of the experiment by 11.3- 13.3 c/ha. On average, for 2 years, the yield of dry hay with surface improvement and with the use of mineral fertilizers increased by 1.8-1.9 times, and with the use of growth stimulants, micronutrient fertilizers, the yield of hay increased by 1.6-1.7 times compared to untreated control version of the experiment. жүктеу/скачать 7.12 Mb. Достарыңызбен бөлісу:
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