研究了海南麻竹林凋落物量及其养分动态。
The litter and nutrient dynamics of Dendrocalamus latiflorus forest in Hainan were studied.
本文研究了棉花早熟品种的吸收养分特点，提出了一生吸收积累养分动态方程；
Characteristics of nutrient absorption of cotton variety with early—maturity was stu died and the dynamic equation of the nutrient absorption and accumulation in the whole season was suggested.
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.
在冀西北高原旱滩地条件下，以饲用玉米白马牙为试验材料，研究了钾肥不同施用量对饲用玉米养分吸收动态及产量品质形成的影响。
The effects of potassium application on nutrient absorption dynamics, biomass and quality of forage maize named Baimaya were studied in meadow-chestnut soil of Northwest plateau of Hebei province.
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.
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.
养分的有效性是由土壤物理、化学和生物学特性，特别是根系主导的根际动态过程所决定的。
The availability of mineral nutrients for plants is determined by the chemical, physical and biological characteristics of soils, especially by root-induced changes in the rhizosphere.
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.
采用田间小区试验方法研究了不同种植方式下玉米产量，干物质积累动态和养分吸收动态变化特点。
A field experiment was conducted to analyse the dynamics of biomass yield and n, p, K absorption by maize under different planting systems.
采用溶液培养方法，研究了不同硼浓度下烤烟干物质积累动态和养分吸收动态变化特点。
A solution culture experiment was conducted to study the dynamics of dry matter accumulation and n, p, K absorption by flue-cured tobacco under different boron concentration.
采用溶液培养方法，研究了不同硼浓度下烤烟干物质积累动态和养分吸收动态变化特点。
A solution culture experiment was conducted to study the dynamics of dry matter accumulation and n, p, K absorption by flue-cured tobacco under different boron concentration.
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