Because of the distinction of soil property and humus content, soil water content is not ideal to indicate whether it is suitable to the growth of plant.
由于土壤性质和腐殖质含量的不同，土壤的含水量并不能很好地说明是否适宜植物的生长。
Organic manure application favours the formation of Fe-humus complexes in purple paddy soils under water-dry rotation.
在水旱轮作下，施用有机肥有利于紫色水稻土铁—腐殖质复合的形成。
This paper deals with the influence of a humus layer of different thicknesses on the water quality environment by measuring and analyzing the concentration of nitrogen nutritional salts.
通过对不同厚度淤泥水中氮营养盐的测定和分析，初步研究了不同厚度淤泥对水族箱水质环境中氮营养盐的影响。
As he pondered over the dimly discernible piece of news he had received he smelled the smell of river water that has been dyed a transparent black by humus soil.
他琢磨着那一丝缥缈的消息。他闻到了一股被腐植质染成清黑色的河水的气味儿。
Sometimes after heavy rain, the water carries the humus down to a river.
有时大雨之后，雨水会把腐殖土冲到河里。
Under normal pressure and room temperature, urea humate is manufactured by coating urea with coal humus acid, with water and a few additives as its binder, also its agricultural effect is examined.
介绍用水和少量添加剂作介质，在常温常压下，煤炭腐植酸与尿素直接进行络合反应包裹生产腐植酸尿素的工艺及特点，并对其农业应用效果进行了讨论。
This often happens if the field is on the side of a hill. The water rushes down the hill and the river carries the humus away to the sea.
山坡上的农田经常会发生这种现象：雨水从山上急流而下，河水把腐殖土冲入大海。
This often happens if the field is on the side of a hill. The water rushes down the hill and the river carries the humus away to the sea.
山坡上的农田经常会发生这种现象：雨水从山上急流而下，河水把腐殖土冲入大海。
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