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The texture of the soil depends on the relative amounts of different-sized particles that combine to make up the soil. These particles can be as large as stone and gravel or as small as clay. A typical clay soil is composed of approximately 60 percent actual clay, 20 percent silt, and 20 percent sand. The particles in a sandy soil are so fine that it tends to be compact and interferes with the oxygen supply for plant roots. Water has trouble entering this impervious soil, and runoff is very common during rainfalls. A typical light sandy soil is composed of approximately 70 percent sand, 20 percent silt, and 10 percent clay. The particles in a sandy soil are comparatively large, permitting water to enter the soil and to pass through it so quickly that it often carries nutrients with it and dries out very rapidly. The texture of sandy soils is genera A. other clay soils retain less water B. other clay soils have smaller particles C. adobe soil has had organic material added to it D. adobe soil is found mostly in dry climates 查看答案 更多"The texture of the soil depends on "的相关试题: [单项选择] The texture of the soil depends on the relative amounts of different-sized particles that combine to make up the soil. These particles can be as large as stone and gravel or as small as clay. A typical clay soil is composed of approximately 60 percent actual clay, 20 percent silt, and 20 percent sand. The particles in a sandy soil are so fine that it tends to be compact and interferes with the oxygen supply for plant roots. Water has trouble entering this impervious soil, and runoff is very common during rainfalls. A typical light sandy soil is composed of approximately 70 percent sand, 20 percent silt, and 10 percent clay. The particles in a sandy soil are comparatively large, permitting water to enter the soil and to pass through it so quickly that it often carries nutrients with it and dries out very rapidly. The texture of sandy soils is genera A. To tell gardeners how to modify their soil. B. To classify soil types on the basis of their composition. C. To illustrate the effects of soil type on plant growth. D. To show how water is absorbed by different soil. 查看答案 [单项选择]The texture of the soil depends on the relative amounts of different-sized particles that combine to make up the soil. These particles can be as large as stone and gravel or as small as clay. A typical clay soil is composed of approximately 60 percent actual clay, 20 percent silt, and 20 percent sand. The particles in a sandy soil are so fine that it tends to be compact and interferes with the oxygen supply for plant roots. Water has trouble entering this impervious soil, and runoff is very common during rainfalls. A typical light sandy soil is composed of approximately 70 percent sand, 20 percent silt, and 10 percent clay. The particles in a sandy soil are comparatively large, permitting water to enter the soil and to pass through it so quickly that it often carries nutrients with it and dries out very rapidly. The texture of sandy soils is generally very difficult to modify because huge amounts of organic material must be added. A typical loam soil is composed of appro A. To tell gardeners how to modify their soil. B. To classify soil types on the basis of their composition. C. To illustrate the effects of soil type on plant growth. D. To show how water is absorbed by different soil. 查看答案 [简答题]soil alkalization 查看答案 [简答题] SOIL QUALITY 1 Soil is a renewable resource, but only on a very long time scale, as it takes hundreds or thousands of years for the natural processes of erosion, organic decay, and accumulation to create soils．Soil quality and the potential to produce crops can vary enormously from region to region and among various soil types． 2 One important factor affecting the productivity of soils ever time is agriculture．Top-quality lands are brought into production earlier because of their higher potential to produce food．As more and more land has been brought under agricultural production, the average quality of land has decreased, reducing potential productivity per hectare．Crops deplete soil fertility by consuming nutrients, and this eventually reduces crop yields．Poor management practices lead to soil compaction and soil pollution as well as loss of soil cover．Without proper management and the constant addition of nutrients and e 查看答案 [单项选择] SOIL QUALITY 1 Soil is a renewable resource, but only on a very long time scale, as it takes hundreds or thousands of years for the natural processes of erosion, organic decay, and accumulation to create soils．Soil quality and the potential to produce crops can vary enormously from region to region and among various soil types． 2 One important factor affecting the productivity of soils ever time is agriculture．Top-quality lands are brought into production earlier because of their higher potential to produce food．As more and more land has been brought under agricultural production, the average quality of land has decreased, reducing potential productivity per hectare．Crops deplete soil fertility by consuming nutrients, and this eventually reduces crop yields．Poor management practices lead to soil compaction and soil pollution as well as loss of soil cover．Without proper management and the constant addition of nutrients and energ A. Loss of flesh water for drinking B. Decrease in the level of rivers C. Excessive buildup of salts in the soil D. Increase in the rate of soil erosion 查看答案 我来回答: 提交 最新试题 ●    [判断题]没有固定走行线或临时变更走行线时,应通知司机经路（集中联锁的车站除外）,司机按固定信号或调 ●    [单选题]本公司规定暂不承运危险物品，所以参与运行人员不需要进行危险品运输训练 ●    [单选题]油田开发方案批准后,应按照油田地下情况,确定( )的先后次序,尽快地形成生产单元、区 ●    [单选题]进行网络互联时,如果总线网的网段超过最大距离时,应用()来进行延伸. ●    [判断题] 线路直接遭雷击时,电缆中流过很大电流,同时引起数千伏的过电压直接加到线路装置和电源设备上 ●    [填空题]市级、县级内管人员每月随机跟车送货、抽查送货单和送货监控,查看送货车辆GPS送货轨迹(如有 网站地图 我要搜题网  版权所有  ©2023  湘ICP备18016427号   购买搜题卡查看答案 [会员特权] 开通VIP， 查看 全部题目答案 [会员特权] 享免全部广告特权 推荐91天 ¥36.8 ￥80元 31天 ¥20.8 ￥40元 365天 ¥88.8 ￥188元 请选择支付方式 微信支付 支付宝支付 点击支付即表示同意并接受了《购买须知》 立即支付 系统将自动为您注册账号 已有账号登录 找回账号密码 请使用微信扫码支付 订单号： 请不要关闭本页面，支付完成后请点击【支付完成】按钮 支付完成 取消支付 恭喜您，购买搜题卡成功 系统为您生成的账号密码如下： 账号 密码 重要提示：请拍照或截图保存账号密码！ 我要搜题网官网：https://www.woyaosouti.com 我已记住账号密码