长期影响主要是由树种组成的变化以及随之而来的森林结构、生产力和养分吸收的变化所导致的。
Long-term effects are primarily mediated by changes in tree species composition and the consequent alterations of forest structure, productivity, and nutrient uptake.
减少养分吸收以许多不同的方式影响作物。
Reduced nutrient uptake affects plants in many different ways.
文章分析和讨论了养分吸收分配差异的成因。
The causes of nutrient uptake and distribution variation were analyzed and discussed in the article.
研究两种禾本科牧草根系空间变异及养分吸收特性。
Elephant grass and Imperial grass were selected to study the properties of root space distribution and nutrient uptake.
促进养分吸收，增强光合作用，提高生物产量和经济系数；
Film - covered can increase effective fertility of soil, advance nutrient absorption, strengthen photosynthesis.
采用管栽试验研究了返青后小麦返白系根系生长及养分吸收利用规律。
The characteristics of root growth, nutrient uptake and utilization of a wheat albinism after reviving were studied with an in vitro experiment.
本文通过温室田间实验，研究了东方百合的养分吸收规律和分配特点。
The characteristics of nutrient absorption and distribution in Oriental hybrids(Siberia) of lily were investigated.
施肥没有改变小麦的养分吸收利用规律，而影响了小麦对养分的吸收量。
Fertilization did not influenced the law of nutrient absorption and utilization, but effected the content of nutrient absorption.
研究在氮素供应水平对露地胡萝卜的产量、养分吸收和氮素利用的影响。
Effect of nitrogen application on content and accumulation of grain protein components of winter wheat;
采用盆栽水培方式，比较了密阳23号、明星和日本晴的无机养分吸收特性。
The mineral nutrient absorption characteristics of the rice varieties miyang23, Bright Star and Japanese Qing were compared by means of potting hydroponics.
通过基质盆栽冬小麦，研究了氮硫交互作用对小麦苗期生长及养分吸收的影响。
Effect of interaction between nitrogen and sulfur on wheat growth during seedling stage and its nutrient uptake was studied.
水分胁迫和低肥处理减少小麦籽粒养分含量、(整株)养分吸收量和吸收效率。
Generally, water stress and low nutrient supply resulted in the lower grain nutrient concentration, and nutrient uptake and uptake efficiency.
使用专用叶面营养液具有改善农产品品质，提高养分吸收利用，降低硝酸盐的效果。
The spraying of SFNS could improve the quality of farm product, promote the absorption and utilization of NPK and decrease the nitrate content in farm product.
保水剂与氮肥交互作用对玉米苗期生理特性、养分吸收及水分利用效率有一定的影响。
The interaction between SAP and nitrogen fertilizer had effect on the physiological properties of maize in seeding stage, nutrient absorption and water utilization efficiency.
以代表性水稻品种为材料，研究了实地氮肥管理模式下水稻的生长发育和养分吸收规律。
With typical rice cultivars as materials, the growth and development characteristics and nutrient uptake in rice under site-specific nitrogen management (SSNM) were studied.
植物根系向地性是决定根系空间生长趋势的主要因素之一，对于养分吸收具有重要影响。
Gravitropism of plant roots is one of the important factors determining the spatial pattern of root growth and thus may have a great effect on nutrient uptake.
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.
在田间试验条件下，对超级杂交稻两优培九各生育阶段的养分吸收特性进行了研究和分析。
The uptake characteristics of nutrients at different growth stages of the super hybrid rice combination Liangyou Peijiu were studied on field experimental conditions.
健康的起源5000国际单位维生素d3是一个关键的养分吸收液高度软胶囊形式制造的。
Healthy Origins Vitamin D3 5,000 IU is a key nutrient manufactured in a highly absorbable liquid softgel form.
互作可以有效地提高土壤肥力，改善土壤的养分状况和根际养分吸收环境，维持植物生产力；
The interaction could enhance soil fertility effectively, improve nutrient status in soil and nutrient absorption in the rhizosphere, and also maintain plant productivity.
因此，从耕地利用土地转换为灌木林地或草地也许，有助于改善土壤有机碳养分吸收和稳定。
Therefore, land use conversion from cropland to shrub land or maybe grassland, contributed to SOC sequestration and improved soil nutrients stabilization.
施肥能够促进春小麦根系的生长发育，特别是促进浅层根量的增加，增强了作物的水分养分吸收。
Ameliorated root system was able to improve crop water use and nutrient absorption, and hence, crop yield and water use efficiency was increased.
异质养分环境中的根系具有较高的养分吸收效率主要缘由在富养斑块中对N、P、K大量的吸收。
Higher efficiency of nutrient acquisition of root in heterogeneous nutrient environment mainly attributed to large absorption of n, p, K in rich nutrient patch.
不同品种即使种在同一块地里，养分吸收、干物质积累也不相同，最后得到不同的产量和经济收益。
Different varieties, even growing at the same field, behave differently in nutrient uptake, dry-matter accumulation, result finally in different yield and economic income.
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.
人们对草甘膦除草剂应用对于作物养分吸收、作物茁壮与产量，以及植物病害负面影响有更大的担心。
Concerns have grown over the negative effects of glyphosate applications on nutrient uptake in plants, crop vigor and yields, and plant diseases.
采用土培试验研究了水分胁迫条件下接种菌根对玉米生长发育、光合作用、养分吸收和水分利用的影响。
The paper studied on influence of VA mycorrhiza on maize plant growth, photosynthesis, nutrient absorption and water utilization under water stress with soil culture experiment.
高淀粉玉米产量和品质的形成与干物质积累、养分吸收、碳氮代谢、籽粒库的糖分与淀粉形成关系密切。
Yield and the quality formation of the high starch maize is closely related to dry matter accumulation, the nutrient uptake, carbon and nitrogen metabolism, and the grain sugar and starch formation.
以粳稻武育粳3号为材料，研究了大田条件下不同氮素水平和土壤水分对水稻养分吸收及稻米品质的影响。
Nutrient absorption and quality of rice on Wuyujing 3 were investigated by different nitrogen levels and irrigation methods on field.
在不供应和补充供应水、氮条件下，研究了限制根系生长空间对玉米根系生理特性、植株养分吸收及产量的影响。
The influence of root growing space of maize upon root physiological characteristics, nutrient uptake and crop yields were studied under conditions with and without supply of water and n.
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