查询词典 nutrient solution

Overall. vegetation was unstable, floristic composition was dominated by adversity-resistant species, and annual species had a higher ratio in this region. The dominant soil particle was sand and soil water and other nutrient contents were low. The eco-environment was fragile and erodible.

总体上看，该地区植物群落多以耐瘠薄性强的植物组成，一年生植物比例较高，植被不稳定，土壤组成主要以砂粒为主，土壤含水量低，养分贫瘠，环境脆弱，易产生风蚀、沙化。

Nematode faunal analyses were found to be a useful method for interpreting the stress or/and nutrient conditions under different land uses.

线虫区系分析方法可用来揭示不同土地利用方式下土壤食物网的变化，为进一步研究土壤生态过程对土地利用方式的响应提供了有效的工具。

In addition, the serum retinol and tocopherol concentration of 20 free-ranging and 3 captive finless porpoises were determined to provide a guideline from which to evaluate the nutrient status of captive animals as well as a base for breeding program of this animal in captivity.

此外，为合理评价饲养江豚的营养状况和该物种的人工繁殖奠定基础，本研究还分别测定了20头野生长江江豚与3头饲养江豚的血清维生素A和维生素E含量并进行相关比较分析。

The nutrient status in the rhizosphere sol of the Pinus koraiensis and Fraxinus mandshurica changed after they mixed in comparison to their pure plantations.

红松与水曲柳形成混交林后，通过两树种的相互作用使两树种根际土壤的养分状况较其各自纯林均发生了不同的变化。

In the meantime, the rhizosphere nutrient mechanism, by which the growth improvement of the mixed stand of Pinus koraiensis and Fraxinus mandshurica was obtained, was also discussed. The results are as follows:(1) the element contents in the root tissue and soil can be determined in the same time by electron microprobe analysis.

摘 要：本文通过电子探针技术、根垫法、剥落分离法等实验技术对红松苗木根土界面性质及调控进行了研究，同时通过剥落分离取样法对红松与水曲柳混交林增产的根际营养机制进行了探讨。

Nutrient cells were obtained from these pigment mutants by enzymatic method and conchocelis were got by parthenogenesis. When the conchocelis were mature and conchospores were released, they were cultured singly and picked up as F1 gametophytic thallus.

通过酶法分离突变体的营养细胞，单性生殖获得丝状体；分别使丝状体成熟并放散壳孢子，然后单株培养和筛选获得褐黄、翠绿和褐绿色子代叶状体。

The Pharmacological role, nutrient value of garlic products, compared with synthetic garlicky products, and the effects of garlic products on animal performance , animal products quality and animal health are reviewed in this paper, The problem of study on garlic products is also prompted here.

本文就大蒜的药理作用，营养特点，与合成蒜素比较及其对动物生产性能的促进，畜产品提高与疾病防治作用进行了综述，并就其目前研究存在的问题一并作一探讨。

Adding manure increased the content of soil nutrient. Compared with check, the content of gein, available P, available K and total P increased notably.

生物有机肥的施用能提高土壤细菌、真菌、放线菌等各类微生物的数量，特别是细菌的数量。

Breed helps advance somebody's career: Can sow breed, but 3 months left and right sides can maintain to lose gemmiparous power namely only below normal temperature after the seed is collected, and fruit hard surface is solid, water penetration is poor, gemmiparous very not orderly, after appropriate uses wet sand bed to accumulate vernalization, the seed with seasonable budding winkle, with nutrient bag grow seedlings, grow 60-70 till Xiaomiao centimeter when, choice monsoon field planting at earthy and loose in fecund loam.

繁育栽培：可播种繁殖，但种子采后在常温下只能保持3个月左右即失去发芽力，且果壳坚硬，透水性差，发芽很不整洁，宜采用湿沙层积催芽后，及时挑出萌芽的种子，用营养袋育苗，直到小苗长到60-70厘米时，选择雨季定植于土质疏松肥沃的壤土中。

A recent policy discussion in the genal science journal Science compared the nutrient balances of different aggriculture agriculture systems.

最近的科学期刊的政策讨论比较了不同农业系统的养分均衡。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。