The concrete measures for cultivation of depressions in the Pingzhang include the following: first, the land shall be planted into a flat stubble, the plants shall be cultivated, and a shallow ditch shall be formed in the middle of the raft. The original ravine shall be divided into two and the shallow ravine shall be formed in two. In the middle of Pingshuo, it is called "the flat ditch dark ditch." The formation of flat ravines usually takes 2 times. The first soil was carried out after the seedlings were raised; the second soil was determined by the cultivated crops; the vegetables needed to be racked were generally placed in front of the racks, and the dwarf vegetables were arranged after the second watering. In the process of earth-cultivation, the principle of not burying the second true leaf is the last. The depth of the shallow ditch at the end of the day is generally 7 to 10 cm, the width is 20 to 25 cm, and the width is 5 to 10 cm. Its advantages are as follows:
First, to facilitate water-saving irrigation of vegetables in the ditch when the need for irrigation, water flow faster, plus the ditch in the middle of the two small ping, from the plant roots are close, easy to reach the plant roots.
Second, to facilitate drainage and flood control This type of squat has the characteristics of high enthalpy, in the rainy, can quickly drain water from the ditch to prevent damage.
Third, to facilitate the seedling topdressing soil can be combined with top dressing, after the plant Qimiao, if it is weak seedlings can be top dressing, and then earth. This method can prevent damage to the root system during topdressing and prevent loss of fertilizer and water.
Fourth, promote root development of plants, to prevent the formation of flat sulcus ditch is formed by two cultivating soil, rhizosphere soil is more loose, porosity increased, the soil oxygen content increased, the temperature conditions improved, prompting the root system of vegetables to accelerate growth, after earthing, Increased firmness of the plants can effectively prevent lodging.
Fifth, to facilitate the management of the field, picking convenient cultivation of ditch cultivation due to water in the ditch, the amount of water is easy to control, after embankment after digging the soil intact, easy to field management and harvesting.
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