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...
Why was irrigation so important to agriculture in Mesopotamia? Why did corn cultivation move so far northward from Mesoamerica? Why did the Mayans build the Kukulkan Pyramid? Why did Pizarro first enter the Inca Empire? Why did the Mayans build Chichen Itza?
Agriculture is the mainstay of Indian economy because: (i)Two thirds of the population is dependent on agriculture and it generates large scale employment. (ii) It provides food for teeming millions. (iii) It provides raw materials to many agro-based industries like cotton, rubber, sugar. Wh...
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The deficiency of irrigation in the country is the result of inadequate infrastructure supporting agriculture. This is a consequence of decades of neglect. For years, agriculture has received progressively smaller share of the country’s overall investment. In the 1950s, agriculture’s share was near...
Maize is an important crop for food security and livelihood improvement in Nigeria and elsewhere in Africa. Maize varieties that enable farmers to increase
Disconnected floodplains then have to be irrigated, and when irrigation water comes from groundwater aquifers, we risk overdrafting them, and aquifer compaction results. And a compacted aquifer in the basin cannot be recovered,” he says. “The compaction of global aquifer basins is irreversible....
The best PVC pipes for agriculture & irrigation are those that are made from virgin resin. This type of plastic is completely free of lead and other harmful chemicals. It is important to make sure that the pipes you purchase for your farm are lead-free. This will ensure that your crops ...
How have advances in motorized farm equipment and irrigation affected agricultural production? What problems has tribalism caused in Africa? Why did the Department of Agriculture remove its scientists? Why is the Niger River important? What are the conflicts and trade-offs regarding the intensification...