Root box experiments were conducted to evaluate the effects of N and NK levels in the root zone on shoot photosynthesis and root growth of hybrid and cultivar of rice (Oryza sativa L.) on two paddy soils (clayey and s...Root box experiments were conducted to evaluate the effects of N and NK levels in the root zone on shoot photosynthesis and root growth of hybrid and cultivar of rice (Oryza sativa L.) on two paddy soils (clayey and silty). The results showed that dry matter yields in the hybrid and the cultivar were considerably increased by NK supply, but the effect was greater for the hybrid. Supply of NK in the root zone significantly increased photosynthetic rate of the lower position leaf and the active green leaf area per plant, in which the effects were much more obvious in the hybrid rice than in the cultivar. High NK supply in the root zone stimulated the root growth, and decreased PH and increased the oxidation zone in the rhizosphere in both entries, but to a greater extent in the hybrid. The results indicated that higher NK levels were needed to maintain higher root activity and shoot photosynthetic capacity in rice, particularly in hybrid rice.展开更多
In this paper, the authors studied the manipulation of ＂dry needling＂, reviewed Chinese ancient and modern literature of acupuncture-moxibustion, and found that ＂dry needling＂ is very similar to triple needling, s...In this paper, the authors studied the manipulation of ＂dry needling＂, reviewed Chinese ancient and modern literature of acupuncture-moxibustion, and found that ＂dry needling＂ is very similar to triple needling, superficial needling, joint valley needling, surround needling, and other traditional Chinese acupuncture- moxibustion manipulations; even if in modern China, before and after the invention of ＂dry needling＂, some unique therapies, such as oblique insertion therapy at Ashi point, sliver needling, Fu＇s subcutaneous needling, and long-round needling, were also invented. It can be seen that ＂dry needling＂ therapy is actually a kind of differentiation of traditional Chinese acupuncture- moxibustion in the international communication. The spread of traditional Chinese acupuncture-moxibustion in the West is the basis for the invention of ＂dry needling＂ therapy, and ＂dry needling＂ therapy develops and enriches traditional Chinese acupuncture-moxibustion.展开更多
The paper examines the chemical composition of alluvial soils from the Zeya and Selemdzha River valleys, one of the branch rivers in the Amur River basin. It has been established that the compositions of these soils a...The paper examines the chemical composition of alluvial soils from the Zeya and Selemdzha River valleys, one of the branch rivers in the Amur River basin. It has been established that the compositions of these soils are characterized by a relative shortage of practically all analyzed macro-and microelements as compared with UCC(upper continental crust) and PAAS(postArhean Australian average shale) compositions. The chemical composition of alluvial soils approximates that of the soils in NE China and Korea due to similar climatic and geographic conditions. On the basis of relationships between major and trace elements and peculiarities of trace elements concentration it is shown that the alluvial soils in the middle reaches of the Zeya River were formed by the sources largely transformed by chemical weathering processes. By comparison, the soils in the Selemdzha River and lower reaches of the Zeya River(below the Selemdzha River mouth) are dominated by material to a large degree reworked by the physical processes rather than chemical ones. This inference conforms with specific geological settings of the water-collector.展开更多
文摘Root box experiments were conducted to evaluate the effects of N and NK levels in the root zone on shoot photosynthesis and root growth of hybrid and cultivar of rice (Oryza sativa L.) on two paddy soils (clayey and silty). The results showed that dry matter yields in the hybrid and the cultivar were considerably increased by NK supply, but the effect was greater for the hybrid. Supply of NK in the root zone significantly increased photosynthetic rate of the lower position leaf and the active green leaf area per plant, in which the effects were much more obvious in the hybrid rice than in the cultivar. High NK supply in the root zone stimulated the root growth, and decreased PH and increased the oxidation zone in the rhizosphere in both entries, but to a greater extent in the hybrid. The results indicated that higher NK levels were needed to maintain higher root activity and shoot photosynthetic capacity in rice, particularly in hybrid rice.
文摘In this paper, the authors studied the manipulation of ＂dry needling＂, reviewed Chinese ancient and modern literature of acupuncture-moxibustion, and found that ＂dry needling＂ is very similar to triple needling, superficial needling, joint valley needling, surround needling, and other traditional Chinese acupuncture- moxibustion manipulations; even if in modern China, before and after the invention of ＂dry needling＂, some unique therapies, such as oblique insertion therapy at Ashi point, sliver needling, Fu＇s subcutaneous needling, and long-round needling, were also invented. It can be seen that ＂dry needling＂ therapy is actually a kind of differentiation of traditional Chinese acupuncture- moxibustion in the international communication. The spread of traditional Chinese acupuncture-moxibustion in the West is the basis for the invention of ＂dry needling＂ therapy, and ＂dry needling＂ therapy develops and enriches traditional Chinese acupuncture-moxibustion.
文摘The paper examines the chemical composition of alluvial soils from the Zeya and Selemdzha River valleys, one of the branch rivers in the Amur River basin. It has been established that the compositions of these soils are characterized by a relative shortage of practically all analyzed macro-and microelements as compared with UCC(upper continental crust) and PAAS(postArhean Australian average shale) compositions. The chemical composition of alluvial soils approximates that of the soils in NE China and Korea due to similar climatic and geographic conditions. On the basis of relationships between major and trace elements and peculiarities of trace elements concentration it is shown that the alluvial soils in the middle reaches of the Zeya River were formed by the sources largely transformed by chemical weathering processes. By comparison, the soils in the Selemdzha River and lower reaches of the Zeya River(below the Selemdzha River mouth) are dominated by material to a large degree reworked by the physical processes rather than chemical ones. This inference conforms with specific geological settings of the water-collector.
