succession cropping

However , because of slow growth and succession cropping obstacles , the development of American ginseng as medicinal resources is extremely limited .

但由于生长缓慢，连作障碍严重，西洋参药用资源的发展受到极大的限制。

Reason Analysis and Control Methods of Succession Cropping Obstacle

连作障碍原因分析及防治途径研究

The Production of Succession Cropping Obstacles and Its Prevention and Cure Steps

作物连作障碍的产生及防治

Influence on sugarbeet growth , root yield and sugar content by the succession cropping

连作对甜菜生长和块根产量及含糖的影响

The area of succession cropping has increased .

轮作方式和面积减少、连作面积增加；

The effect of applying economic green manure crops in the paddy field with succession cropping system

稻田复种应用经济绿肥效应研究

The Effect of Succession Cropping and Soybean Stubble on Soybean Root Exudates

大豆连作及其根茬腐解物对大豆根系分泌物中酚酸类物质的影响

Compare the different blade position , succession cropping influence the upside and middle blade mostly .

从植株不同叶位的叶片来看，连作对烤烟中部和上部叶片影响最大。

Succession cropping obstacle was alleviated using bio-organic manure in a way .

施用生物有机肥，可以在一定程度上缓解设施番茄连作障碍。

Grafting in tomato cultivation is one of the efficient methods to avoid soil succession cropping failure and soilborne diseases .

番茄嫁接栽培是解决设施土壤番茄连作障碍，防止番茄土传病害的有效途径之一。

The soil environment of planting soybean in the soils of the replication stubble and succession cropping stubble were unfavourable soybean 's growing , because the pathogenic fungus and the other non-pathogenic fungus of the soybean root medium were a large numbers . And the soybean root rot occurred severely .

重茬和连茬土壤环境中，大豆根际土壤中致病菌数量大，杂菌多，是最不利于大豆生长的土壤环境，大豆根腐病发生加重。