A. Because it can waste more water. B. Because it is easier to operate for farmers. C. Because it can deliver water precisely to plants' roots and reduce water waste. D. Because it is the cheapest irrigation method. 相关知识点: 试题来源: 解析...
was built in the third century BC. Its uniqueness is that it does not need dikes to regulate water flow. For more than 2000 years, it has been playing an effective role in flood control and irrigation, making Chengdu Plain a fertile land free from drought and flood...
Why is farming considered the beginning of the Neolithic Revolution? Why were children sacrificed in the Incan Empire? Why was irrigation important in Mesopotamia? Why was Peru settled after Mexico? Why did Cortes want to conquer the Aztecs?
Unless the government shows the political will to prioritise the development of agriculture by ensuring that irrigation facilities, together with adequate drainage are provided, uncertainties of the monsoon will continue to adversely affect the economic well-being of a majority of India’s farmers. Bisw...
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How has the Department of Agriculture helped farmers? Why is the Department of Agriculture important? Why does the Department of Agriculture exist? Why do many desert plants have no leaves? How have advances in motorized farm equipment and irrigation affected agricultural production? What problems has...
Unfortunately, not all the land on Earth can be used to grow crops of humans.About 24.7 million acres of land is lost to agriculture each year because the land has become too salty.The main cause of the problem is irrigation.When farmers water their crops, salts in the water also enter ...
Maize is an important crop for food security and livelihood improvement in Nigeria and elsewhere in Africa. Maize varieties that enable farmers to increase their productivity and profitability, for example, can help them achieve these development outcomes. Contextual factors shape women’s and men’s...
Irrigation: ... Lack of mechanisation: ... Soil erosion: ... Agricultural Marketing: ... Inadequate storage facilities: What are the main problems of India? What are the current major issues in India? Corruption. The most widely spread endemic in India is corruption, which must be handled ...
[单项选择题]Why haven’t I left yet Everyone seems to be asking me this question now. Clearly their having to say goodbye as if it’s the last time they’re ever going to see me is beginning to wear out my friends. Some of the more unfortunate must have said goodbye at least three...