A continuous cropping can use 20 years, high yield, high regeneration ability.
一次种植可连续利用20多年，产草量高，再生能力强。
The autotoxidity caused by plant survivor and root exudates under continuous cropping of v…
并分析了连作条件下，植物残体和根系分泌物产生的自毒作用。
Cucumber, as the main protected cultivation vegetable, is sensitive to continuous cropping.
黄瓜是设施栽培的主要蔬菜作物，对连作反应敏感。
Continuous cropping is a method of farming in which fields are not given a fallow period between crops.
连作是指在同一块土地上连续两季以上种植作物而使土地没有休耕期的耕作方式。
Objective To discuss the internal and external factors' functional mechanism of ginseng continuous cropping obstacle.
目的探讨人参连作障碍的内外在因素作用机制。
It was suggested that inoculation of P. chrysosporium had definite effect in overcoming the continuous cropping obstacle of cucumber.
表明施入黄孢原毛平革菌剂对黄瓜连作障碍的解除具有一定的效果。
The experiment chose 3 medicaments and 3 concentrations by 3 times of irrigating roots to control Gladiolus continuous cropping disease.
试验选用三种药剂，三种浓度在生长期间进行三次灌根处理，防治唐菖蒲重茬病害。
The variation of microflora of rhizospheric and non-rhizospheric soils of soybean following main crops and continuous cropping of soybean.
研究了正茬与连作大豆根际及非根际土壤微生物区系的变化。
The nitrogen contents and nitrogen forms were studied in albic soil with longterm crop rotation and soybean, maize, wheat continuous cropping.
对轮作及大豆、玉米、小麦长期连作白浆土中氮含量及有机态氮组分变化进行研究。
The results showed that, the continuous cropping orchards had significant microelements deficit, fungus enrichment and catalase decrease in soil.
结果表明，重茬果园土壤微量元素亏缺严重，土壤真菌富集，过氧化氢酶降低；
The kinetic characters of Mn nutrition stress caused by continuous cropping soybean were investigated by pot experiment, field experiments and chemical analysis.
本文通过田间与盆栽对比试验及室内分析相结合的方法，研究了大豆连作胁迫下锰营养的变化特征。
The epidemic factors of cucumber's soil-borne diseases were closely related to continuous cropping years, planting areas, planting models and cultural techniques.
影响流行因素主要有棚室连作年限，设施栽培黄瓜种植面积，种植模式和栽培措施。
The effects of undecomposable organic materials mixed with biopreparate on the physical and chemical properties of continuous cropping greenhouse soil were studied.
研究了有机物料配合生物菌剂施入塑料大棚连作土壤后，对土壤理化性质的影响。
During recent years, continuous cropping Soybean, lack of soil tillage and lack of effective herbicide for Perennial sowthistle caused Perennial sowthistle rampant.
近年来，由于大豆连作普遍、土壤耕作次数减少且无防除苣荬菜的特效药，导致大豆田苣荬菜的危害日趋严重。
The scientific grounds for reasonable regulating Mn nutrition of soybean continuous cropping and alleviating continuous cropping barriers are recommended by the study.
本研究为合理进行连作大豆锰营养调控，减轻连作障碍提供了科学依据。
Effects of soybean specific fertilizer on adverse resistance of soybean in rotation and soybean continuous cropping were investigated by pot and field plot experiments.
采用田间与盆栽试验方法研究了大豆专用复混肥对轮作、连作大豆抗逆性的影响。
The results above showed that water soluble carbohydrates, amino acids and organic acids from continuous cropping soybean had significantly close correlation with root rot.
上述结果表明，大豆连作土壤有机化合物与根腐病发生存在极密切关系，它们是根腐病严重发生的重要物质诱因。
Continuous cropping soil microflora changed from Bacteria type to Fungi type significiently, of which Ammoniation bacterium and Fusarium oxysporum were main physiology groups.
真菌数量变化一直呈线性增长。 黄瓜连作土壤由“细菌”型向“真菌”型转变，其中氨化细菌和尖孢镰刀菌分别为优势细菌和真菌生理群。
Allelopathic effect of root exudates on pathogenic fungi of root rot in continuous cropping soybean was studied by sand culture, water culture, and indoor culture experiments.
采用砂培、水培和室内培养等试验方法研究了连作大豆根分泌物对根腐病病原菌的化感作用。
The microbial organic fertilizer can greatly prevent the continuous cropping tobacco black shank if being applied to soil without continuous cropping obstacles for a long time.
在还没有形成连作障碍的土壤上长期施用本微生物有机肥料能在很大程度上防止连作烟草黑胫病的发生。
The kinetic characters of Zn in soil and soybean plant under soybean, continuous cropping stress were investigated by pot experiments, field experiments and chemical analysis indoors.
本文通过田间与盆栽对比试验及室内分析相结合的方法，研究了大豆连作胁迫下，土壤与植株锌营养变化特征。
In this paper, the changes of soil microbial community by soybean continuous cropping , dominant fungi, phytotoxins produced by P. purpurogenum and it's toxicity to soybean was reported.
本论文报道了连作、轮作大豆根际土壤微生物区系变化、土壤真菌优势类群、连作大豆根际土壤真菌优势类群紫青霉菌毒素的理化特性及其作用的研究结果。
Strawberry is a kind of nutritious fruit with high economic value, but the growth of strawberry was inhibited by the continuous cropping obstacle, with the yield and the quality being decreased.
草莓是一种营养丰富、经济价值较高的水果，但连作障碍使草莓生长发育不良，产量与品质下降，而造成连作障碍的因素种类繁多，极其复杂。
The heavy soil root disease was caused by the unbalanced soil microflora after continuous vegetable cropping in green house.
蔬菜设施生产过程中的连作方式致使作物根区土壤微生物区系失衡，引起土传病害的流行。
The researches have been extensively studying the barrier mechanism caused by continuous soybean cropping in the past few years. But the conclusions were incompletely consistent with each other.
近年来，科技工作者对大豆连作障碍机理进行了广泛研究，得出的结论不尽一致，尚有争论。
Most allelochemicals in continuous and alternate cropping soils are the same as those in the root exudates, decomposed root stubs and aqueous extracts from plant shoots of soybean.
重迎茬土壤中的化感物质种类多与大豆根系分泌物、根茬腐解产物、地上部水浸物中的化感物质相同。
Most allelochemicals in continuous and alternate cropping soils are the same as those in the root exudates, decomposed root stubs and aqueous extracts from plant shoots of soybean.
重迎茬土壤中的化感物质种类多与大豆根系分泌物、根茬腐解产物、地上部水浸物中的化感物质相同。
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