Results 71 to 80 of about 274 (142)
Metabolomic Analysis of the Effect of Rice False Smut (Ustilaginoidea virens) on the Quality of High-Quality Rice [PDF]
To investigate the mechanism for the effect of rice false smut on rice grain quality, this study used two high-quality japonica rice varieties, Liaogeng 433 and Liaogeng 2501, moderately susceptible to rice false smut.
PAN Zhengyan, YANG Tiexin, XIE Wenxiao, DONG Liqiang, JIANG Xiuying, MA Liang, LI Jianguo, BAI Yuanjun
core +1 more source
Development of Information System of Rice Recommend Fertilization Based on GIS in Guizhou Province [PDF]
水稻生产在贵州粮食生产中占有举足轻重的地位,而复杂的地形条件,多样的土壤类型,分散的水稻土资源,滞后的农业技术推广,制约着贵州水稻高产、高效、节能栽培的发展。农民采用传统农业生产方式,盲目施肥,造成肥料利用率的低下,农业生产的成本较高;造成耕地地力下降,同时也带来严重的环境问题,严重时甚至威胁到农产品质量的安全。相关研究表明,科学施肥对于提高肥料利用率、降低生产成本、提高作物单产、保护农业生态环境具有重要意义。地理信息系统集成计算机软件、硬件、地理数据来获取、管理、分析和显示各种形式的地理相关信息 ...
汪卫红
core
在池栽条件下研究了不同水分处理对旱稻吸收氮磷钾及分蘖生产效率的影响。结果表明:土壤水分对旱稻吸收N、P、K矿质元素有明显影响。随着土壤水分含量的提高,植株对矿质元素的吸收量显著提高。在分蘖初期,65%水分处理的植株对N、P、K的吸收量分别只有100%的74.1%,43.9%和50.8%,而在分蘖后期,则分别只有100%的41.4%,18.6%和27.5%。旱稻矿质元素的分蘖生产效率以在85%土壤含水量时最高,其N、P、K的平均分蘖生产效率分别比100%高35.7%,140%和81.8 ...
赵全志 高桐梅 宁慧峰 殷春渊 吕强
doaj +2 more sources
通过田间小区试验,在施氮量180 kg/hm2水平下,设置4个氮肥运筹比例,基肥:分蘖肥:穗肥的比例分别为10:0:0(T1),4:3:3(T2),2:3:5(T3),0:3:7(T4),研究氮肥后移对水稻产量形成和稻田田面水氮素动态变化的影响。结果表明:与氮肥全部作为基肥施用的处理相比,将前期氮肥的30%甚至50%后移到穗肥施用,对水稻产量没有明显影响,而氮肥后移70%至穗肥会使水稻产量显著下降。田面水中总氮(TN)和可溶性总氮(DTN)浓度在每次施肥后1天达到峰值,铵态氮(NH4+-N ...
段小丽 +5 more
doaj
[Simultaneous determination of three allergic proteins in rice and products by high performance liquid chromatography-tandem mass spectrometry combined with stable isotope-labeled peptides]. [PDF]
Yang H, Cao Z, Ma Y, Chen M.
europepmc +1 more source
Retrieval Augmented Generation (RAG) has become prevalent in question-answering (QA) tasks due to its ability of utilizing search engine to enhance the quality of long-form question-answering (LFQA).
Cai, Tianchi +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]
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 PBAT on Soil Water and Salt in Maize Root Zone and Maize Yield in Saline-alkali Land [PDF]
[Objective] In order to reduce soil pollution caused by plastic film, the application effect of using PBAT fully biodegradable plastic film instead of ordinary PE plastic film combined with drip irrigation to grow maize in mild secondary salinized soil ...
HOU Jiana +6 more
core +1 more source
为探索东北地区水稻种植过程中控释氮肥侧条施用对水稻产量和氮素损失的影响,设置对照不施氮肥(CK)、农民常规施肥(FP)、高量控释氮肥(HN)、中量控释氮肥(MN)和低量控释氮肥(LN)共5个处理,通过田间小区试验研究了控释氮肥侧条施用对水稻产量、氮素回收率、农学利用效率、径流损失和不同层次淋溶水中总氮浓度变化的影响。结果表明:HN处理和MN处理在氮肥用量降低10%~20%的条件下与FP处理比较水稻籽粒产量没有显著降低,HN处理的穗数和穗粒数分别比FP处理提高了10.79%和15.38%,当氮肥减量30%(
刘汝亮 +6 more
doaj

