征服
发表于 2025-3-28 18:39:40
Crop IrrigationMany efforts have been made to determine, interpret and measure plant water status and various parameters have been used as indicators of plant water status. The most common one in recent years is the one based on thermodynamics, which can also serve as a basis for water application to crop by means of irrigation.
临时抱佛脚
发表于 2025-3-28 20:16:29
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蕨类
发表于 2025-3-28 23:06:47
0172-4207 ctive onAvailableWater Resources (Part I), Water Conservation and TechnologyinAgricultural Systems (Part II), Problem Water Uses andTreatment (Part III),and Management and Policy Evaluation(Part IV).The book is aninvaluable source of information for waterresource planners, managers andpolicy makers,
flimsy
发表于 2025-3-29 04:28:26
Drainage and Subsurface Water Managementome other point in the landscape. In many soils the natural drainage processes are sufficient for the growth and production of agricultural crops. In other soils artificial drainage is needed for efficient agricultural production.
额外的事
发表于 2025-3-29 09:57:53
Irrigation Management Under Drought Conditionsys come first where water is an essential and often limiting input, but water also meets may other needs of civilization, including municipal, industrial, navigation, power, recreation, waste disposal, and esthetics. Water demand for these competing uses frequently conflicts with agricultural water supplies.
Glaci冰
发表于 2025-3-29 14:46:22
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乐器演奏者
发表于 2025-3-29 17:31:17
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幻影
发表于 2025-3-29 22:29:25
Irrigation Techniques and Evaluationsany cases, this can be considered a short-term investment. In the third case, development of a farm irrigation system is dependent on the economic feasibility of the entire farming enterprise. This is nearly always a long-term investment decision.
capsule
发表于 2025-3-30 00:05:30
Die Torsionsdystonie. Der Hemiballismusdruck „Torsionsdystonie“ vor, der sich allgemein eingebürgert hat, doch werden daneben in der Literatur noch viel die Bezeichnungen Torsionsspasmus, Tortipelvis, Dystonia lordotica progressiva, .-.sche Krankheit gebraucht.
不开心
发表于 2025-3-30 07:38:15
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