Effects of Tillage Disturbance on Slope Shape and Micro-topographic Features on Typical Sloping Cropland of Southwestern Alpine-canyon Area [PDF]
[Objective] The objective of this study was to investigate the effects of various tillage practices on on slope shape and micro-topographic features on typical sloping croplands of southwestern alpine-canyon area.
LIU Jingyi +8 more
core +1 more source
有机无机不同用量配施对煤矿复垦土壤氮素利用及矿质氮含量的影响
Shuitu Baochi Xuebao, 2019 采煤塌陷新复垦土壤有效氮含量低而有机无机培肥过程中氮有效性变化尚不明确，依托定位培肥试验基地（山西省孝义市水峪煤矿采煤塌陷复垦土壤），设置8个不同处理包括3个有机无机不同用量配施处理（鸡粪与化肥1：1氮量在100，150，200 kg/hm2配施，表示为MF100、MF150、MF200），与单施不同用量化肥氮（0，100，150，200 kg/hm2，表示为IF0、IF100、IF150、IF200）相比较，以不施肥为对照（CK）。通过测定玉米产量、植株吸氮量、氮肥利用率及作物收获后土壤剖面矿质氮含量，
张若扬 +5 more
doaj
Effects of fertilization on Casuarina equisetifolia seedlings total phenolics and extractable condensed tannin contents. [PDF]
, 2010 研究了施用氮肥和磷肥对短枝木麻黄幼苗总酚(TOTAl PHEnOlICS,TP)和可溶性缩合单宁(EXTrACTAblE COndEnSEd TAnnIn,ECT)含量的影响,探讨短枝木麻黄单宁形成的养分效应.结果表明:施加氮肥使短枝木麻黄幼苗小枝的TP和ECT含量显著降低,支持碳氮平衡假说和生长分化平衡假说,但对氮含量没有显著影响,从而导致TP/n和ECT/n降低;施加磷肥对TP和ECT含量没有显著影响;随着处理时间的延长,短枝木麻黄幼苗小枝TP含量升高了9.91%~14.32 ...
叶功富, 张立华, 林益明
core
Analysis of plant species enabling to infect with Alternaria alternata in pear orchards [PDF]
[Objective] The study aimed to determine some plant hosts by Alternaria alternata in pear orchards and these plant hosts could show typical black spot disease. Simultaniously, A.
CHENG Ying +6 more
core +1 more source
Shuitu Baochi Xuebao, 2017 采用田间试验裂区设计方法，研究了测墒补灌和施氮对冬小麦产量及氮素吸收分配的影响。补灌设3个水平,在冬小麦拔节期0—40 cm土层补灌至土壤目标相对含水量的60%（W1），70%（W2）和80%（W3）。施氮设3个水平：不施氮（N0）、施纯氮195 kg/hm2（N195）和255 kg/hm2（N255）。结果表明：(1)不同补灌和施氮对冬小麦关键生育期株高、叶面积影响效果较为显著，同一补灌处理下，其冬小麦株高、叶面积均表现为N255＞N195＞N0（p＜0.05）。N195 ...
金修宽, 赵同科
doaj
Optimization of Ganoderma leucocontextum Fermented Tea Medium Formula Based on High-yield Extracellular Crude [PDF]
To investigate the optimal nutritional conditions and their contributing factors for the secretion of extracellular crude polysaccharides with Ganoderma leucocontextum on a liquid tea substrate, this study optimized the nutritional conditions of its ...
Di LIU +7 more
core +1 more source
Proteomic approach to the different expressed proteins induced by infection of Xanthomonas oryzae pv. oryzicola in rice cultivar minghui63 [PDF]
, 2006 水稻细菌性条斑病（简称细条病），广泛分布于华南、中南稻区。该病是细条病菌Xanthomonasoryzaepv.oryzicola(Xooc)引起的一种细菌性病害，于20世纪50年代在我国广东省首先发现，后因感病的杂交水稻大面积推广，致使此病迅速蔓延，病区不断扩大，已成为我国水稻主要病害和重要的检疫对象。目前国内外对于水稻细条病的研究仅仅限于基因组学的研究以及抗性基因的转化，而对该病菌侵染水稻后诱导机体蛋白应答的系统性研究还未见报导。因此，运用差异蛋白质组学手段开展水稻对细条病菌侵染的应答相关蛋白研究 ...
黄青云
core
Effects of Trifolium repens invasion on functional traits and turf quality of Poa pratensis [PDF]
[Objective] Invasion of Trifolium repens occupies the living space of turfgrasses and has been seriously threatening the quality and function of turfs. Examining the impact of T .
BAI Xiaoming +5 more
core +1 more source
Shuitu Baochi Xuebao, 2019 研究不同施氮量对双季稻产量、氮磷钾积累量及氮磷钾利用率的影响，同时探讨双季稻吸收利用氮、磷、钾素三者间的相互关系。通过田间试验研究施氮量不同、磷钾投入量相同条件下的双季稻产量、双季稻氮、磷、钾积累量、双季稻氮、磷、钾素利用效率及磷钾吸收利用与氮吸收利用的关系。结果表明：双季稻产量在一定范围内（早稻0~105 kg/hm2，晚稻0~146 kg/hm2）随施氮量的增加而提高，之后产量随施氮量增加而降低。本试验施氮条件下，早稻产量最高的处理为75%N （105 kg/hm2），比CK （不施化肥）增产58 ...
朱启东 +6 more
doaj
Spatial relationship between root system and soil properties of mature and densely planted Kuerlexiangli pear under long-term strip fertilization [PDF]
[Objective] Kuerlexiangli pear (Pyrus sinkiangensis Yü et Lu.) is the main cultivar in Southern Xinjiang. In recent years, the main trunk dense planting pear orchard has developed rapidly and entered the peak fruiting period.
AN Shijie +9 more
core +1 more source