Soil sampling method for testing soil for formulated fertilization of apricot trees

Abstract

The invention discloses a soil sampling method for testing soil for formulated fertilization of apricot trees. The method comprises the following steps: (1) for the sampling time, sampling before fertilization according to two important growth stages, namely the germination stage and the fruit swelling stage of the fruit trees; (2) for the sampling part, selecting a plurality of fruit trees as sampling trees according to an S shape in an orchard, uniformly arranging a plurality of sampling points along the circumference at a drip line of the crown of any one sampling tree or the part away from the trunk by 2 / 3 of the vertical projection radius of the crown; (3) for the sampling method, taking soil by two layers along the soil layer depth at any sampling point, wherein the depths are 0-20cm and 20-60cm in the sapling period, and the depths are 0-20cm and 20-80cm in the full bearing period, and the wet sample amount is more than 1Kg; and (4) mixing soil samples on the same soil layer of the same sampling tree, cleaning sundries, drying and then reserving the samples according to a quartering method. According to the soil sampling method, the work efficiency of sampling soil samples is high, the sampled sample distribution control method is scientific and reasonable, and can fully cover the distribution of the various soil types of the sampled apricot trees.

Description

technical field [0001] The invention belongs to the technical field of fruit tree cultivation. Specifically, the invention relates to a soil sampling method for soil testing and formula fertilization of apricot trees. Background technique [0002] Soil sampling is an important link in the determination and analysis of soil samples for formula fertilization and the formulation of fertilization formula, and there is a big gap between different tree species. One is that the apricot orchard in Xinjiang is in the intercropping ecosystem of fruit farmers, and the absorption roots of apricot trees are concentrated in the range of 0-80cm soil layer. There is a large gap in the vertical distribution range of . The second is the control of sampling units. Generally, a mixed sample is collected every 100-500 mu. However, complex factors such as different soil textures, intercropping patterns, and fertilization levels in apricot tree orchards have a great impact on the basic fertility ...

AI Technical Summary

Problems solved by technology

One is that the apricot orchard in Xinjiang is in the intercropping ecosystem of fruit farmers, and the absorption roots of apricot trees are concentrated in the range of 0-80cm soil layer. There is a large gap in the vertical distribution of

The second is the control of sampling units. Generally, a mixed sample is collected every 100-500 mu. However, complex factors such as different soil textures, intercropping patterns, and fertilization levels in apricot tree orchards have a great impact on the basic fertility of apricot tree soil. Only by considering a single There are great limitations in the representativeness of soil sample sources when the planting area is controlled by sample point distribution

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