>>> 哲学 经济学 法学 教育学 文学 历史学 理学 工学 农学 医学 军事学 管理学 旅游学 文化学 特色库
搜索结果: 1-15 共查到Crop Rotation相关记录28条 . 查询时间(0.093 秒)
Accurate information of crop rotation in large basin is essential for policy decisions on land, water and nutrient resources around the world. Crop area estimation using low spatial resolution remote ...
The uptake of Pb, Cd, Zn and biomass production of the plants Brassica juncea v. Opaleska, Triticale hexaploides var. Gabo and Helianthus annuus v. Maritza were observed in a field (trial) and a pot e...
Soil organic carbon (SOC) plays a vital role in determining soil fertility, water holding capacity and susceptibility to land degradation. On the Chinese Loess Plateau, a large amount of crop residues...
Arbuscular mycorrhizal fungi (AMF) improve the uptake of immobile mineral nutrients such as phosphate, thereby improving plant growth. In acid sulfate soil (ASS), AMF spore density is generally low wh...
Two crop rotation cycles were evaluated to determine the effect of cropping systems and N fertilization on the yield and efficiency of N in maize. Maize was grown on plots which had previously support...
Water-saving rice-winter crop rotation systems were repeated for 4 cycles from 2000 to 2004 in an urban area, Nishitokyo, Japan, to assess the effects of water-saving (i.e. non-flooded vs. flooded) on...
Recently, damages by soybean cyst nematode (SCN) are increasing in Japan, due to continuous cultivation of soybean, and the establishment of the culture method to control SCN is awaited. In this rese...
Influence of soil tillage methods on the weediness and yields of spring wheat, spring barley and field pea in organic crop rotation.
A three year (20052008) field experiment was conducted in Central Lithuania to study the effects of different crop rotations (spring oil-seed rape-spring barley-winter wheat; winter wheat-spring rap...
The ecological crop rotation in the present trial has been established as a 10-field rotation. The crop sequence was based on calculation of how much of the nutrients does one or another crop take...
The research was carried out over 2004-2006 at the Experiment Station Osiny (51°28’ N; 22°04’ E) of the Institute of Soil Science and Plant CultivationPIB in Puławy. Three technologies of cult...
Assessment of weed infestation in winter wheat, winter triticale and spring barley cultivated since year 1998 in cereal crop rotation under three technologies varying in production intensity was cond...
The present research covers the time of the second rotation: sugar beet-spring wheat-pea-winter triticale (1999-2002). The investigations were conducted on a very good rye complex soil. A reduced till...
The aim of the present studies carried out over 1994-1998 was to define the effect of multi-year fertilisation with straw + NPK, NPK only, manure only, manure with: PK, NK, NP, NPK, NPK + Ca and no fe...
The idea of weeds as an element supporting the biodiversity in agrocenosis led to this research whose aim was to evaluate the effect of selected agrotechnical factors, such as crop rotation, tillage m...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...