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土壤坚实度,是指土层的松紧和它的易碎与否的程度而言。不同的土壤,因其机械成分与土壤结构的不同,其坚实度也有差别。但同样土壤,在不同耕作条件下,如翻耕或不翻耕,镇压或不镇压等不同措施,整个耕作层的坚实度也不同。测定土壤坚实度的方法,在国外是用各种仪器来鉴别的。目前我国还没有此项仪器制成品可以供应,各地农业工作者虽然创造了一些有关测定的器具,但是一般不够精密,准确性也很差,不能达到要求。目前我们在使用上认为比较满意的,是利
Soil solidity refers to the tightness of the soil and its fragility or not. Different soil, because of its different mechanical composition and soil structure, its solidity is also different. However, in the same soil, under different farming conditions, such as tillage or no tillage, suppression or no suppression, the firmness of the whole tillage layer is also different. The method of measuring the soil firmness is identified by various instruments abroad. At present, China does not have the equipment available for this instrument. Although agricultural workers around the world have created some instruments for determination, they are generally not sophisticated enough in accuracy and can not meet the requirements. At present, we think that we are more satisfied with the use of profit