| Potato is one of the main food crops in yunnan province,and the potato industry in recent years has been one of the key agricultural industries in our province.But the potato industry development in yunnan province by climate,land resources and traffic,affect the plant diseases and insect pests,less involved in enterprise application,technical reserves and advanced planting technology factors such as lack of restriction,for this reason,we are able to represent yunnan high altitude cold liangshan area where the high yield cultivation technology research,in order to through different potato cultivation experiment,to obtain high yield cultivation technical information,provide the basis for Tai'an township potato myr.The experiment was carried out in taian township of yulong county,and the experiment involved two parts:(1)the influence of different planting density on yield and quality test,mainly to explore 10 li potato the influence of different planting density on yield and quality,to find suitable local potato planting density range,effectively guide the production.(2)"3414" applied field test,to explore 10 potato production of bright and beautiful the best fertilization formula composition,explore the best fertilization model of potato production,potato for the future provide a scientific basis for reasonable fertilization and the instruction.Through research,conclude tha(1)the influence of different planting density on grain yield and quality of potato,the influence of different planting density on potato yield reached significant level(F = 6.25 > F0.05 = 3.84),to a certain extent within the scope of the potato production present a positive correlation with density,yield increased with the increase of planting density,more than the limit,increase as the density,it will influence because of the competitive relationship between individual organisms.The planting density of reasonable and high yield of sweet potato 10 should be between 3500 and 4000 mu/mu.(2)"3414" field fertilizer effect test,compared with the control,increasing nitrogen,phosphorus and potassium fertilizer application are influential to the potato production,and from the point of view of fertilizer effect,any two factors in 2 N,P,K level,the potato yield is higher,and when applying nitrogen at level 1,P content in two levels,the potato yield the highest,that under the condition of the soil fertility,potato larger demand for nitrogen fertilizer,phosphate fertilizer,especially sensitive to applying phosphorus content,from the point of production and benefit analysis,the treatment the best fertilization ratio for N1P2K1,1680.0 kg per mu,with a 43.2% increase in production,net income after the fertilizer cost is 911.6 yuan/mu. |
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