Results 1 to 10 of about 513 (102)
Some of the next articles are maybe not open access.
S˜æè »ýæ×-»èÌô´ ×ð´ ÂæçÚUßæçÚU·¤ â{Õ‹Ïô´ ·¤æ ç¿˜æ‡æÑ °·¤ â׿ÁàææS˜æèØ ¥ŠØØÙ
Quest-The Journal of UGC-HRDC Nainital, 2017openaire +1 more source
×Ùôר ∙ôá ∙è âæŠæÙæ ∙æ ç∙àæôÚô´ ∙ð ׿Ùçâ∙ SßæS‰Ø °ß´ ÙðÌëˆß ÿæ×Ìæ ÂÚ ÂǸÙð ßæÜð ÂýÖæß ∙æ ¥ŠØØÙ
Pearl : A Journal of Library and Information Science, 2013openaire +1 more source
Safety Risk of Heavy Metal Pollution and Its Control of Rice(稻米重金属污染风险及控制) [PDF]
Rice is the staple food in China. With the rapid development of industry, agriculture, and urbanization, heavy metal pollution of rice has become an important problem. In this study, kinds of heavy metal pollution and the formation reasons were analyzed.
WANG Weiping(王伟平), LI Ni(黎妮)
doaj +1 more source
Diversity of Endophytic Bacterial Communities in Three Parental Seeds of Hybrid Rice (Oryza sativa L.) at Maturity Stage(3个杂交水稻亲本成熟期种子内生细菌多样性研究) [PDF]
The objective of this study was to investigate the endophytic bacterial communities in the seeds of three rice (“Shen 08S”, “He 620S” and “16A007”) in maturity stage. Experimental results showed that the parental seeds of hybrid rice had diversity of the
LI Nannani(李南南) +6 more
doaj +1 more source
Study on Degradation of Rice Pesticide Residues by an Amino Acid Organic Fertilizer(一种氨基酸有机肥降解稻米农药残留的研究) [PDF]
The aim of this study was to explore an approach to effectively degrade rice pesticide residue and integrate technologies concerning safety rice production.
JIANG Xinlu(姜心禄) +5 more
doaj +1 more source
Do diverse landscapes provide for effective natural pest control in subtropical rice?
Our findings question the cost‐effectiveness of current chemical‐based pest management in farming, and highlight opportunities for more ecologically based pest management strategies based on the widespread activity of natural enemies. Pest damage and biocontrol, however, are largely independent from the landscape context, which might be due to the ...
Yi Zou +8 more
wiley +1 more source
以籼稻品种特青的幼胚作为外植体,研究了激素对愈伤组织诱导及植株再生的影响。MS+2,4-D 2 mg/L作培养基,愈伤组织诱导率达100%;愈伤组织在MS + KT 3 mg/L + NAA 0.5 mg/L的培养基上,分化频率为67.3%;在此基础上利用基因枪转化技术,将外源的bar基因导入了水稻基因组,转基因植株表现出对除草剂Basta很强的抗性。
WANGHui-zhong(王慧中) +4 more
doaj +1 more source
应用生物耗竭法并结合模拟试验综合评价了广东5种主要母质发育水稻土的供钾特性。研究结果表明:(1)2mol/L冷HNO3法提取的有效钾与水稻吸钾量间的相关性最好,建议用2mol/L冷HNO3法提取的钾来评价土壤的供钾状况。(2)1mol/L沸HNO3法提取的非交换性钾含量在耗竭后高于耗竭前的水平,与水稻吸钾量相关性很小或呈负相关,不适宜用来评价耗竭土壤。(3)广东5种主要母质发育的水稻土供钾能力大小顺序为:三角洲沉积物发育水稻土>花岗岩发育水稻土>砂页岩发育水稻土>石灰岩发育水稻土>玄武岩发育水稻土 ...
高淑涛 李华兴 郭庆荣
doaj +2 more sources
By quantifying the diet composition of GAPs over crop stages, farm types and years, this study reveals that generalist predators have potential to produce a stable, predictable top‐down effect on pests in rice agro‐ecosystems. Therefore, promoting the field densities of ubiquitous generalist predators will likely enhance pest management and support ...
Gen‐Chang Hsu +4 more
wiley +1 more source
研究了分次施氮条件,施氮对水稻根际土壤微生物生态效应的影响,结果表明:水稻根际土壤微生物生态效应不仅仅受到根际土壤微生物的影响,同时也受到水稻生长状态的影响。一般来说,水稻生长旺盛的时候,水稻根系与根际土壤微生物竞争营养元素,导致水稻根际微生物活性的下降。在水稻生长周期内,水稻根际土壤微生物生物量C与根际土壤酶等变化不一致。分次施氮条件下,施氮对根际微生物生物量C、磷酸酶、脲酶、总蛋白和总酚有一定的影响,尤其是在水稻生长的后期,4次施氮全部完成后,施氮与不施氮表现出明显的差异。
汪华, 杨京平, 徐伟, 马维娜
doaj +2 more sources

