SU1449049A1 - Method of early-spring top-dressing of winter crops - Google Patents

Abstract

And; crop farming refers to agriculture, and, and, but to the way of fertilizing the aus-uii. crops, and can be cultivated) with intensive growth of winter crops, rye, barley. The aim of the invention is to investigate the effectiveness of top dressing. According to the cutting technique, a layer of fertilizer is applied to the new cHeia. Above them form a snow shaft of a coal-shaped form. Irie must comply with the requirement of complete termination of fertilizers and,) d c. For this purpose, the bottom of the shaft is made not less than the width of the strip of fertilizers. The walls of the snow shaft, yn, sweat them by treating them with anhydrous ammonia vapors. In this case, the upper snow layer is melted and sealed, and the shape and parameters of the shaft are compared to the worn snow. As the shaft is spring, the fertilizer layer is exposed and dissolved in water. A solution of fertilizers and residual H1a with moisture enters the zone of the root system in the period of maximum saturation of the soil with moisture, which speeds up the assimilation time of the plants and removes early spring dressing when it is impossible to use machines for fertilizer. 3 il.

Description

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The invention relates to agricultural production, in particular to methods for fertilizing winter crops and can be used with intensive technology for growing winter wheat, rye, barley. The purpose of the invention is to increase the efficiency of feeding.

FIG. 1 shows a diagram of applying a layer of fertilizer on the surface of a field in a transverse vertical plane; in fig. 2 - scheme of filling the fertilizer with a snow shaft; in fig. 3 is a diagram of the hardening of the side walls of a snow shaft with pairs of anhydrous ammonia. Example. The filling of fertilizers 1 with snow on the surface of the snow, the hacking of the snow shafts and the treatment of the walls of the snow shaft with pairs of anhydrous ammonia are the most rational in one pass of the combined unit.

Fertilization prior to filling the shaft is carried out with a conventional tukovysevayuschim apparatus. The snow shaft is formed of a triangular shape in cross section with a base width not less than the width of the fertilizer strip. It is chosen based on the conditions of the snow cover and the depth of snow 2. It is necessary to comply with the requirement of complete termination of fertilizers under a layer of snow shaft. Since the walls of the shaft are loose, to strengthen them, the side walls are treated with anhydrous ammonia. In this case, the top layer of snow is melted and sealed, retaining the shape and parameters of the shaft until spring snowfall.

During the snow period, neither the snow between the trees and the winter crops 3 (Fig. 1.3) begin to vegetate and absorb moisture. In this case, part of the nutrient content is lost along with the drain.

As snow rolls out, a layer of fertilizer 1 is exposed and dissolves in water. The fertilizer solution and the remaining moisture enter the root zone of cultivated plants during the period of maximum moisture saturation of the soil. This shortens the time needed for the cultivation of nutritious crops and ensures their early spring dressing when the tractor does not seem to move along a track. At the same time, the balance of HHja substances in the soil is restored. Fertilizer layer 1, snow cover 2, and crops of cultivated plants 3 are arranged sequentially from top to bottom, which inevitably solves the achievement of the set goal in combination with the formation of a snow shaft 4 with compacted walls 5 with ammonia treatment.

The application of the method allows a more qualitative and timely adjustment of the time of fertilization and eliminates the time spent on the preliminary dissolution of fertilizers.

It is advisable to apply the method in conditions of a mild winter and a cold cold spring.

Claims (1)

Invention Formula The method of early spring fertilizing of winter crops by applying a layer of fertilizer on the snow surface, characterized in that, in order to increase the efficiency of fertilizing, a layer of fertilizer is applied to the snow surface with strips over which a snow shaft is formed, which walls are strengthened by treating with anhydrous ammonia vapors , with a bottom width not less than the width of the fertilizer strip. thirty / L X W) m1N "Lv M1 nmnE m m H1m m1 A" m 1 w n ///////// //////////////// ////////////////////// fU8. 13 //// //// /// /// /// ///// 7 ///////////  Rig. 2 / //////// / / U / /// / //)} //// //// at / / J / L  Rag. 3