What is the main reason for using organic farming methods?5. How many ways do the organic farmers have to keep their soil fertile and healthy? What are they? 相关知识点: 试题来源: 解析 Ⅱ)1. They are a great way to stop crop disease and increase e production. 2. They can ...
A. It provides energy for the whole food chain. B. It makes the soil fertile. C. It can purify water. 相关知识点: 试题来源: 解析 A。解析:植物通过光合作用制造有机物,植物是食物链的基础,为整个食物链提供能量。选项B使土壤肥沃通常与土壤中的微生物分解等因素有关,和光合作用没有直接关系。选项...
Which soil horizon is rich in humus? View Solution A fertile soil is likely to have a pH value of View Solution Top soil is rich mixture of humus and inorganic salts in View Solution Assertion : Humus makes the soil fertile. Reason : Humus is rich in organic matter ...
Why is the soil of Kathmandu Valley fertile? Why are the Himalayas called the "roof of the world"? How do the Himalayas affect the rivers of India? Why does Mount Kilimanjaro have snow? Why are the Andes Mountains important? Why do mountains receive more rainfall?
Why is the soil of Kathmandu Valley fertile? Why is geology important to the study of natural history? Why do young fold mountains have high peaks? What is the importance of a grassland biome? Why do western slopes of the Western Ghats receive orographic rainfall?
aA society in which the standards of consumption of a majority of the population are fixed and stable,wherein people are contented with what they have and desire nothing more,scarcely provides fertile soil for the sowing of industrial changes. 人口大多数消耗量标准是固定和稳定的社会,人们对什么满意...
a他们集中精力想保持土壤肥沃且免受病害 They concentrate the energy to want to maintain the soil fertile also exempt plant disease[translate] awhere island is the smallest in the word 那里海岛是最小的在词[translate] a挥霍的青春,总是想太多 Spends freely the youth, always wants many too[translate...
a整地施肥,应选择土壤肥沃,土层深厚,疏松,透气性好,微酸性的沙壤土,播前要进行灭茬、深耕,耕深应达20厘米 Entire applies fertilizer, should choose the soil to be fertile, the soil layer is deep, loose, the permeability is good front, the slight acidity sandy soil, broadcasts must carry on elimina...
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Female access to fertile land and other inputs in Zambia: why women get lower yieldsGender yield gapProductivitySoil qualitySub-Saharan AfricaZambiaThroughout the developing world, it is a well-documented fact that women farmers tend to get lower yields than their male counterparts. Typically this...