采用盆栽试验，探讨了连作花生土壤养分的变化及对施用有机肥料和无机肥料的反应。
The variation of nutrient in soil of sequential cropping peanut and the response of such soil to organic and chemical fertilizers were investigated through pot culture.
土壤养分不仅具有明显的空间变异，而且在时间上也表现出一定的变化。
Soil nutrients not only have spatial variability, but also change with the time.
文章还对土壤养分的变化的原因进行了分析。
施肥量的提高是种植结构变化导致土壤养分提高的主要原因。
The increase of amount of fertilizer application was the main reason for the result of soil nutrient increase from the planting structure changes.
对桤木人工林细根、土壤养分含量的季节变化及其两者之间的关系进行了研究。
This paper made a dynamic study of the seasonal variation of nutrient elements in the fine roots and soil from Alnus cremastogyme Burk plantations, and of the relationship between them.
研究了梅州沙田柚两个果园的土壤养分、结果树营养叶片不同生育时期的矿质元素含量及季节性动态变化情况和各元素的相互关系。
The soil nutrients, the contents and seasonal dynamics of mineral elements as well as the relationship among the elements in leaves of fruit-bearing trees of Citrus grandis Osbeck cv.
不同草地类型土壤养分含量的变化是随着土层加深而降低。
The soil nutrient in different rangeland stapes was gradually decreased with soil depth.
本文论述了自1980年调查以来冀东滨海稻区耕地土壤养分的变化状况，分析了土壤养分含量变化的原因，提出了改良途径。
In this paper, we discuss soil nutrients change status of paddy rice land in Jidong coastal area since 1980, to analyse the reasons and put forward a modified way.
本文主要阐述覆膜栽培耕层土壤主要酶与有效养分变化及其相关性。
This paper mainly states the coherency between the main enzymes and the available nutrient in ploughed layer in soils mulched with film.
在立地条件一致的前提下，研究了落叶松人工林土壤养分含量的年动态变化趋势。
On the premise of identity for site conditions, the annual dynamic changes of soil nutrients under larch plantation were studied.
根据土壤养分与柑桔产量动态变化规律，制定出适合本柑桔园的分区施肥方案。
Regionalized fertilization technology was studied based on the relationship between citrus yield and soil nutrients.
结果表明：城市土壤演变过程中土壤物理性质和养分含量发生了明显的变化。
The results showed: There were apparent changes of physical properties and nutrition content in the evolution process of city soil quality.
通过对人工种植黄花草木樨样地的监测，根据土壤养分含量的变化研究了改良退化土壤的效果。
The effect of Melilotus officinalia on improving degraded soil is studied according to the change in nutrient content of soil after planting.
土壤有机质含量、全量养分含量和速效养分含量均在采伐初期2～5年增加，随后又迅速减少，尤其是表层土壤变化更为明显；
The organic matter content as well as the total and available contents of nutrients increased at the first 2~5 years, and then declined rapidly, especially for those in topsoils.
通过马铃薯覆膜集肥试验，研究了土壤养分和酶活性动态变化。
Through plastic film covering and fertilization experiment on potato field, the dynamical changes of soil nutrients and soil enzyme activities were studied.
土壤中微生物数量、酶活性和养分含量随季节变化有不同的变化。
The Numbers of soil microorganisms, soil enzymes activities and content of soil nutrition fluctuated in different patterns. according to seasonal changes.
在对土壤样品的采集报道中，通常只考虑了土壤横向和纵向的不均一性，而忽视了土壤养分动态变化的时间性。
When collecting and reporting on a soil sample, it is common to only consider the soil's lateral and vertical non-homogeneity but to ignore the temporality of the soil's nutrient's dynamic change.
本文分析了低丘红壤新垦桔园套种牧草对土壤养分、土壤物理性质和桔园小气候变化的影响。
The effects of under-crop sowing grasses in citrus orchard on soil fertility, soil physical properties and orchard microclimate in low hilly red soil region were analyzed.
从缓释肥料在土壤的养分残留量变化特点看出，无论在砂质或粘质土壤中，均具缓释作用。
We have seen the varied characteristic of nutrient residual quantity of slow release fertilizer in soil, Both possess activity of slow release in sand or clay soil.
土壤速效磷和土壤速效钾与其它土壤养分指标相比变化幅度较大且趋势不一致，土壤速效磷在2005年有先上升后下降的过程，而在2006年表现为较为平缓的上升。
The result showed that the contents of the total nitrogen organic matter and available nitrogen in the soil gently increased in 2005, but were fluctuated at a certain level in 2006.
土壤速效磷和土壤速效钾与其它土壤养分指标相比变化幅度较大且趋势不一致，土壤速效磷在2005年有先上升后下降的过程，而在2006年表现为较为平缓的上升。
The result showed that the contents of the total nitrogen organic matter and available nitrogen in the soil gently increased in 2005, but were fluctuated at a certain level in 2006.
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