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UGG España The main factors affect the yield of Pa

 
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PostWysłany: Śro 11:27, 16 Lut 2011    Temat postu: UGG España The main factors affect the yield of Pa

The main factors affect the yield of Panax


Panax seven with food crops yield of the main factors for superficial and other cash crops are common, but because of Panax notoginseng yields the composition of special 1 special cultivation environment, factors that determine the yield of the special Panax notoginseng yields the following formula can be expressed simply: yield (kg /): Evolution from the back seam can be seen that the components of Panax yield roughly the same with other crops, by the biological characteristics, cultivation conditions, etc., but the main factors time relationship is different. Rice, rapeseed and other biological characteristics of its most crops as the main factor, spike, grain number, grain weight,[link widoczny dla zalogowanych], angle and other factors determine the number of their yield, performance of varieties in cultivation characteristics, fertilization level. Thirty-seven different, yield the greatest impact on the survival rate for the deposit of Panax, the transplant volume and dry discount rate is almost a constant. Focuses on plant roots change in the same area is not too large. Can make a simple calculation, the amount is 39-48 Panax transplanting trees. Dry discount rate of 1:4, root weight per plant at the state middle level 33 (ie 30 kg of fresh seven), the theoretical yield of Panax should be 3225-3975k iso / hm2, but according to the state in 1997 Panax census results, the statewide average yield of 1350k different Panax / hm, can calculate the average rate of Panax less than the existence of seedlings,[link widoczny dla zalogowanych], such as%, which is perhaps unique in all the crops of the two main reasons for the low rate of Panax stored seedlings Panax special physiological characteristics and cultural environment created by the special nature of Panax yield components, changes in deposit rates of seedling production so significantly different Panax, I am afraid to vote someone can easily tell how much the current yield of notoginseng. In Pingba region, yields little more about seven 7500k nose, but the yield of seven 150 �� kg of fresh there,[link widoczny dla zalogowanych], only 30 �� yields fresh seven women also many crops even less. Panax yield differences caused by such a large main reasons are: �� notoginseng cultivation for a long time from transplanting to the excavation will take 2 years to ask, plant mortality, seedlings kept low; �� Panax grown in shade and humidity The plant Received date; 2 groan 0-176-13 training environment conducive to the occurrence and spread of various diseases, disease loss of large, low deposit seedlings; �� Panax plants of simple structure, poor disease resistance, any kind of disease in occurrence of any one area are fatal. Therefore,[link widoczny dla zalogowanych], the survival rate is generally lower Panax deposit, but in the fine management of seven parks, but also by increasing the survival rate kept yields substantial increase in production, due to the uneven quality of seven farmers, resulting in high and low survival rate deposits, the three Seven yield quite different. 3 indirect effects of traditional values based on the size of Panax notoginseng fashionable and attractive yields now, did not reflect competitive prices. The size of fixing prices to farmers in the cultivation will stimulate the use of high light transmission rate ceiling. High transmission rate can be increased ceiling root weight per plant, but disease will also increase Panax. Survival rate but decreased memory,[link widoczny dla zalogowanych], decreased production of Panax groups. The disease increased, leading to pesticides, fertilizers, hormone abuse, is not conducive to the improvement of internal quality Panax. But from the economic point of view, part of the seven farmers remain profitable, because the size of the head of Panax spread up to 2-3 times. Seven farmers by thin ceiling. Through the extensive use of pesticides, fertilizers, hormones, so that survival rate of the reduction will not save too much, can guarantee profits. Thus, the production of Panax onto the road of high value not stable, but also easily lead to instability of Panax quality. Therefore, we advocate Panax should follow the principle of competitive prices, while promoting the cultivation of Panax moderate growing methods, which improve the yield and stability for the quality is very necessary. In short, the main factors affect the yield of Panax notoginseng inherent specificity in addition, the different specifications of the price factor is also a great role. Relationship yields the composition from the view, the main direction of Panax cultivated seedlings should be kept was the focus blindly increase the root weight per plant, in addition to technical difficulties, but also easy to cause risk, the negative effects of inconsistent quality.
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