The aim of the field experiment was to investigate to what extent such a system could prevent soil degradation resulting from very intensive crop rotations.
此次田间试验的目的，是研究这一方法能在多大程度上防止由于精细的作物轮作所产生的土壤退化。
Effects of different fertilizing modes on soil environment quality and crop yield of kailyard were studied through field experiment.
通过田间试验，研究了不同施肥方式对菜园土壤环境质量及作物产量的影响。
Soil erosion is greatly affected by artificial interference and farming intensity. The amount of soil erosion in hillside field system increases 20 times from natural protection to crop cultivation.
土壤流失量受人为干预、耕作强度的影响很大，坡地从自然保护到作物栽培，系统的土壤流失量提高20倍。
The straw still can increase the soil organic matter, improve the soil structure, increasing soil fertility to return the field, can make the crop grow more stalwart, the output is higher.
秸秆还田还能增加土壤有机质、改良土壤结构、增加了土壤肥力，能使作物生长更健壮，产量更高。
Through the laboratory research and field experiment, the influencing mechanisms of lateral depth in non-pressure irrigation on soil water movement and crop growth are studied.
通过室内试验和大田试验，研究了无压灌溉方式下埋管深度对水分运移和作物生长的影响机理。
The relationship between mineralizable soil N and crop N uptake was studied under the condition of pot and field experoments respectively.
在盆栽和田间条件下，研究了作物吸氮与土壤可矿化氮的关系。
The effective hemisphere model (EHM) lodged by BenAsher can apply in drip irrigation system design and field crop soil water management.
由Ben - A sher等提出的等效半球模型EHM (EffectiveHemisphereModel)可用于滴灌系统设计和田间滴灌作物土壤水分的管理。
The field test of the organic-inorganic compound fertilizer is also made. The results show that the compound fertilizer can increase yield, upgrade crop quality and improve the soil properties.
结果表明，该有机-无机复混肥可有效提高作物产量，改善作物品质，并对土壤具有显著的改良作用。
Previous researchers through conventional field observation methods had proved that to increase fertilizer input was the key measure to enhance soil carbon sequestration and crop yield-increasing.
前人通过实地观测的常规方法，证明了增加肥料投入是土壤增汇、粮食增产的关键措施。
Previous researchers through conventional field observation methods had proved that to increase fertilizer input was the key measure to enhance soil carbon sequestration and crop yield-increasing.
前人通过实地观测的常规方法，证明了增加肥料投入是土壤增汇、粮食增产的关键措施。
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