Issn 305-9397. Ғылым және білім. 2022. №1-1 (66) issn 2305-9397
Ауыл шаруашылығы ғылымдары
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180 the spring period of 2015 and 2016 contributed to the accumulation of productive moisture reserves during the preparation of various predecessors and was at the level of good security, which led to the further emergence of friendly shoots of rapeseed plants. It follows from the above that over the years of research in 2015-2017, the reserves of productive moisture in the soil played a decisive role in the formation of the yield of rapeseed plants. Nutritional adequacy in the soil The content of nitrate nitrogen in the upper 0-20 layer of the soil in 2014 for pure, zero, and minimum steam increased to15.4-16.8 mg/1000 g. of soil by the end of steaming (Table 2). Table 2 – Dynamics of nitrate nitrogen content in mg / 1000 g of soil depending on various steam treatment technologies for 2014-2016 The predecessor is 2014 At the beginning of steam, N-NO 3 At the end of steam. N-NO 3 0-20 cm 20-40 cm 0-20 cm. 0-20 cm 20-40 cm 1 2 3 4 5 1. Net ploughing process St 6,7 4,2 16,8 7,0 2. Zero ploughing process 6,4 4,1 15,4 5,6 3. Minimum ploughing process 7,1 4,3 15,8 5,3 4. Employed ploughing process 6,2 3,8 16,2 3,7 5. Legume crop 7,4 4,0 11,3 3,4 2015 year 1. Net ploughing process St 6.9 4.2 18.5 7.2 2. Zero ploughing process 6.4 3.9 15.2 5.4 3. Minimum ploughing process 7.2 4.3 15.1 6.7 4. Occupied ploughing process 6.5 3.9 13.1 5.4 5. Legume crop 6,1 4,1 8,3 4,2 2016 year 1. Clean ploughing process St 10.2 6.6 19.6 7.7 2. Zero ploughing process 9.9 5.2 17.6 5.8 3. Minimum ploughing process 9.0 5.5 17.0 6.2 4. Occupied ploughing process 10.8 4.9 12.1 5.0 5. Legume culture 10.6 5.1 7.3 4.1 Due to the fact that plants (rapeseed, peas) were vegetated on variants 4,5, the content of nitrate nitrogen in the upper 0-20 layer of the soil by the end of the following is at the level of average availability and ranges from 7.4-6.2 mg /1000 g of soil, respectively. The content of nitrate nitrogen in the upper 0-20 layer of the soil in 2015 for pure steam reached the level of increased security by the end of steaming and amounted to 18.5 mg /1000 g. It is well known that the absence or limitation of mechanical treatments in a steaming field leads to some restrictions on the nitrification process in the soil. As a result of the above factor, by the end of vaporization, the content of nitrate nitrogen in the zero and minimum vapors is lower than in the pure vapor and amounts to 15.2; 15.1 mg /1000 g of soil, respectively, according to the content of nitrate nitrogen in the upper 0-20; 20-40 soil layer in 2016, by the end of vaporization, a similar trend. As is known, with a high content of total phosphorus (0.098-0.150 %) on ordinary chernozems, the available phosphorus for plants is at a minimum due to the alkalinity of the soil solution and the soil carbonate content. A positive phosphate mode favors root growth, enhances rape resistance to unfavorable growing conditions, and regulates yields. With the cumulative poor content of phosphorus in the soil and its insufficient application, the nutrition of rapeseed plants is provided solely by scarce soil reserves. Phosphorus application in the volume equal to the amount of its removal |