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Wysłany: Czw 19:15, 27 Sty 2011
Temat postu: moncler outlet Article in the late autumn and next
Article in the late autumn and next spring harvest mulberry mulberry relationship between the amount of
The number of photosynthetic products formed, namely, photosynthetic rate, leaf area of photosynthesis of the time, on the other hand also depends on the consumption of photosynthetic products and the distribution of the body in the tree. Take the article in the late autumn harvest of mulberry leaf extract of the traditional harvest comparison, the physiological role of the former major changes in the mulberry distribution of photosynthetic products in the body, cut the branches after cutting, preventing the growth of new branches, so stay Blade Manufacturing nutrient mainly accumulated in the trunk,
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, branches, river die of hunger fight. . 3 dagger Pavilion 2009 Lake San pests and diseases and their control countermeasures Xu Zhongkun Jincheng Lin (Sericulture Station Pavilion Lakes Yancheng 224002) (Pavilion Lakes Green Dun Agricultural Center) CLC number: $ 888.7 Document code: C Article ID :2009 -02-25-003 recent years, the Pavilion Lake mulberry pest forecasting and control work in the higher authorities attach great importance to the great care and, through industry-wide technical staff and the joint efforts of the majority of sericulturist, District Sang disease Comrade difficult pest forecasting stations out negative, so that mulberry pest control work throughout the year, and achieved certain results. However, some diseases and pests in mulberry mulberry still occurring in our region, local more serious, seriously affected some yield and quality of mulberry silkworm breeder and threatened the safety of sericulture production. 1 mulberry and characteristics of pests and diseases in winter 2008, spring 2007, it met cold winter, the temperature lower than in previous years, winter survival of pests in mulberry base decline, year over year flat mulberry pests and diseases, development of the spring buds of mulberry deviation over the same period 3 to 5 days later, due to climate change,
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, pests and diseases and damage to mulberry have different characteristics. 1.1 Partial late spring mulberry pest lice before March 20 see above the tree, years later than the normal 8 to 10 days, the local plots amounted to 6000 acres of insects, a branch up to 20; Sang weevil 80 to 450 per acre, average 200; Sang 30 250 caterpillars per acre, average 120; mulberry geometrid 20-180 per acre, and the average 100. Yap G COUNTY 8S and roots, especially roots more obvious, and the traditional harvest picking off leaves, branches in the lower leaves are removed, the only number in the article leaves the top left,
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, leaves and young shoots continue to grow, their needs nutrients, except as part of its manufacturing supply of leaves, there are going to spend part of the branch, stem and root of the storage nutrients, therefore, on the surface, after picking off leaves in late autumn growth of new branches is still essentially a According to the analysis determined the total sugar content in the root article late autumn harvest mulberry leaves harvested and extraction as compared to 70:30, which is harvested in late autumn mulberry article can increase the physiological basis of the next spring. However, the same article in the late autumn harvest mulberry, due to various reasons, the next spring mulberry leaves open the yield difference is often large extent, according to our study, the formation of photosynthetic products of mulberry trees, depending on light intensity, 1.2 in summer and autumn Every rainy climate suitable for the climate in 2008 to benefit mainly of Lepidoptera pests of mulberry moth breeding, resulting in a greater fall against lepidopteran pests,
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, mulberry borer insect quantity 100 acres 310; mulberry caterpillar 5O ~ 250; mulberry looper 20 to 180. Against Lepidoptera pests in autumn of silkworm rearing and late autumn Moon Festival was a small silkworm silkworms during co-culture of prevention and treatment of negative, resulting in high winter base. 1.3 Micropropagation pests susceptible mites in rural areas in 2008 soybean and other crops despite the drought increased, making spider mite reproduction and metastatic spread faster, but because of frequent rain fall, temperature balance, red spider,
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, thrips Sang played an important body of insects and other micro-inhibition, and thus did not constitute a large mulberry late fall hazards. 1.4 Sang Sang epidemic disease area and the Mulberry 2008 anthrax have occurred in the local mulberry, mulberry disease since 2002 has occurred to me, was spread on the rise year by year, place an area of 300 acres in 2008, has become One of the major diseases of mulberry trees in our region, resulting in a large number of cut mulberry leaves, whole plant shoots dead serious, rainy and wet weather in autumn, increased the occurrence of the disease, Green Village Green Dun Group 1 on 60 acres of mulberry, was Pa 3 groups and photosynthetic photosynthetic area more than 30 times in the late autumn harvest time sooner or later be cut, cut will affect the photosynthesis left after cutting time, so at the appropriate time of harvest, harvest earlier than the late great increase in production , otherwise small. Similarly, the cut section leaves much to stay at harvest, leaf area, the more the formation of photosynthetic products, in particular, moderate Laonen leaves, good nutrition and moisture conditions, the light intensity on the large, the same leaf area, photosynthetic products amount to much. This is the article in the late autumn mulberry production increase next spring after harvest reason for the difference. When we understand the physiological causes of the future, we will be able to local conditions in promoting the application, scientific application of the technology, as much as possible next spring mulberry leaves bigger increase, better value for money.
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