Flounder 发表于 2025-4-1 04:49:54
Befunderhebung und Therapiedurchführungnd mechanical and electrical equipment; and (b) learn the techniques for repair and maintenance, and inspection and exercising of equipment. This chapter explains the various solutions to the physical and social phenomena causing maintenance problems of canals and canal structures. High-intensity ra歪曲道理 发表于 2025-4-1 06:50:08
Befunderhebung und Therapiedurchführungss irrigation water from agricultural lands; hence it is part of on-farm development work. Stormwater drainage works for the canal (cross drainage, drain along the canal in cut and fill sections) are part of canal structures and have been covered in Chap. .. The main purpose of field drainage is toprojectile 发表于 2025-4-1 13:30:33
Befunderhebung und Therapiedurchführungenance of the irrigation system. The objectives of this chapter are to increase our understanding of an irrigated agriculture system as it operates, recognizing its strengths (good features/values/benefits), as well as its constraints, and gain knowledge of field procedures for identifying the major遗产 发表于 2025-4-1 17:22:09
https://doi.org/10.1007/b137535ture. The methods of determining and managing saline/sodic soils and water are presented. The rise in the water table within 1–2 m of the surface causes waterlogging and contributes significantly to evaporation from the soil surface, leaving the salts in the top layer of soil (see Chap. . for detailGudgeon 发表于 2025-4-1 22:21:31
Befunderhebung und Therapiedurchführungaluate surface irrigation systems. The objectives of this chapter are to: (a) gain basic knowledge about soil moisture and its importance; (b) understand different methods and principles of measurement of soil moisture; and (c) exercise precaution in the use of different soil moisture instruments. T伟大 发表于 2025-4-2 01:23:54
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