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Beneficial effects of microspray on orchard soil

Number of hits:2552019-04-28 16:35:31

Micro-sprinkler irrigation is a kind of water-saving irrigation technology developed rapidly in recent years. In the process of orchard fruit tree irrigation, micro-sprinkler irrigation has gradually become the mainstream irrigation technology for orchard irrigation due to its characteristics of water saving and energy saving, time saving and labor saving, and promoting high quality and yield of fruit trees. Micro-sprinkling irrigation has the most significant effect on orchard soil, and has a beneficial effect on soil moisture content and physical and chemical properties.

I. the influence of hui sprinkler irrigation on soil moisture content. Due to the artificial control of irrigation intensity, the spraying intensity is less than the soil infiltration rate. After spraying, most of the water forms a process without water infiltration. The soil remains loose and breathable. The border irrigation is different, chatting is only the first part of the water without water infiltration, and mostly formed water infiltration, irrigation duration is long, the most easy to produce surface runoff, soak the fruit trees, leaching of soil, increase evaporation between underground leakage and naked, causing surface harden irrigation water utilization rate is low, so the micro irrigation than border irrigation water, more suitable for orchard irrigation.

Effect of micro-sprinkling irrigation on improving physicochemical properties of orchard soil.

1. Fertilizer conservation: the amount of mineral fertilizers and organic matter in the soil only reflects the potential fertility state of the soil, and only when they are absorbed and utilized by the root system of fruit trees in the soil can they give full play to the fertility effect. When surface irrigation passes through soil macropores, the water flow is faster and the flow rate is higher, and soil particles and fertilizer particles are carried into the deep layer along with the water flow, resulting in soil loss. The water from micro-sprinkling irrigation is distributed around the root system in a rain-like manner, which avoids deep seepage and nutrient loss and thus plays a role in maintaining fertilizer.

2. Soil conservation: micro-sprinkler irrigation has a low intensity of irrigation and no runoff can effectively prevent the erosion and compaction of the soil surface caused by the flood irrigation of furrow and furrow irrigation, so as to reduce the damage to the aggregate structure of the soil in the cultivated layer and maintain more voids and good ventilation and water permeability, which is beneficial to the growth of crops.

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