Study On High-Yielding Cultivation Techniques Of Pinellas Ternate(Thumb.) Bruit

This study focuses on how sprouting,biodegradable mulch film covering,seeding rate,levels of fertilizer application and different picking times effected on Pinellas ternate(Thurnb.) Bruit yield through field-planting experiments.Conclusion:sprouting along with biodegradable mulch film covering could increase production in a great extent(increase approximately 30);the most suitable seeding rate was 120kg/667 m²;though adjustment of corn density could increase production,the effect wasn't so significant.The yield increased remarkably as the fertilizer application increase,it reached its peak when the Nitrogen,N,P₂O₅,K₂O use at a level of 52.74 kg,16.70 kg,28.72 kg per 667 m² respectively;as far as local Pinellas ternate(Thumb.) Bruit is concerned,middle Sept.to early Oct.was the best picking time.The technique points of Pinellas ternate(Thumb.) Bruit are as fallows:selected nutrients-rich,porous,water-holding,fertilizer-holding soil and plowed deep to 20-25cm before the planting year;immersed seeds with 5%plant ash or 50%carbonados wet table powder for 2 hours,moved them into great tent or heated them under 20-25℃by fire or electrical heater after draining and drying;watered soil enough before covering mulch film,made sure the mulch film tight,plain and sealed;fertilize 2500 kg rotted manure,50 kg FCMP and 50 kg Potassium soleplate per 667 m² as basal fertilizers when mounded the earth.Added 50 kg oil seeds scum plus 1000 kg human faces per 667 m²,of which was the most suitable level,when sprouting,the first and the second sprout-tumbling time came respectively.The reasonable NPK utilization in the whole reproductive process of Pinellas ternate(Thumb.) Bruit should be respectively controlled at a level of 116.1 kg,28.35 kg,48.8kg per 667 m²;and the seeding rate be controlled at a capacity of 120 kg per 667 m²,while corn density be kept at a 40 cm×50 cm row spacing;decomposed, mounded topsoil 3 times respectively when sprouting,the first and the second sprout-tumbling time arrived,then fertilized and mounded in turn.Made a 5-8 cm shallow ditch on the top of the mound with a small hoe when made the topsoil porous(within the sowing depth),then took some earth from the bottom of the mound and spread evenly in a 1.5 cm layer on the top of the mound;watered it in time to make sure soil humid within a level of 28-40%,drained it in time when the soil contains too much water;kept an eye on pest and fungi,then took suitable measures and dealt with it as soon as possible;the best harvest time began from middle of Sept.to early Oct.,dug them out shortly after their leaves and stalks began to decompose.In summation,of all the seven factor:sprouting,mulch film covering,seeding rate, corn density,levels of fertilizer use and picking time,the most significant factors for Pinellas ternate(Thumb.) Bruit yield were levels of fertilizer application and seeding rate through experiments.Considering its production,cost-effectiveness and economic efficiency,the best seeding rate was 120 kg per 667 m²,while the most suitable N,P,K use was 52.74 kg,16.70 kg,28.72 kg per 667 m² respectively in a life-death circle of Pinellas ternate(Thumb.) Bruit.Seeding rate played a relatively more important role upon Pinellas ternate(Thumb.) Bruit than fertilizer use.