2. 外语
  3. Farmers usually use ploughs to prepare their fields for planting crops. Ploughs cut into the ground, and lift up weeds, and othe

Farmers usually use ploughs to prepare their fields for planting crops. Ploughs cut into the ground, and lift up weeds, and othe

admin2017-07-01  49
问题     Farmers usually use ploughs to prepare their fields for planting crops. Ploughs cut into the ground, and lift up weeds, and other unwanted plants. However, ploughing【B1】______causing severe damage to topsoil by【B2】______the plants that protect the soil from being blown or washed away. Many farmers in South Asia are now trying a process called Low Till Farming. Low Till Farming limits the use of ploughs. In this method of farming, seeds and fertilizer are put into the soil through small cuts made in the【B3】______of the ground. Low Till Agriculture leaves much or all of the soil and 【B4】______of plants on the ground. They【B5】______a natural fertilizer and help support the roots of future crops. They take in rain and allow it to flow into the soil instead of【B6】______. It has been proved that Low Till Farming increases harvests and reduces water use, and this method reduces the need for【B7】______products because there are fewer unwanted plants. Scientists say Low Till Farming is becoming popular in South Asia, which is facing a【B8】______water shortage. They say the area will become【B9】______on imported food unless water is saved through methods like Low Till Farming.【B10】______, more than 115 million people in South Asia depend on local rice and wheat crops. Farmers grow rice during wet weather. During the dry season they grow wheat in the same fields. Farmers are using the Low Till method to plant wheat after harvesting rice. Scientists say Low Till Agriculture is one of the best examples in the world of technologies working for both people, and the environment.
【B7】
选项
答案chemical
解析
转载请注明原文地址:https://kaotiyun.com/show/fMU7777K
0

大学英语六级

相关试题推荐
随机试题
最新回复(0)