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Accueil du site → Master → Chine → 2005 → Study on Cultivation Techniques of Populus Deltoids Bartr.cv Zhonglin-46 in Edge of Tengger Desert, Ningxia, China

Université de l’agriculture de Chine (2005)

Study on Cultivation Techniques of Populus Deltoids Bartr.cv Zhonglin-46 in Edge of Tengger Desert, Ningxia, China

马晖;

Titre : Study on Cultivation Techniques of Populus Deltoids Bartr.cv Zhonglin-46 in Edge of Tengger Desert, Ningxia, China

Auteur : 马晖;

Grade : Master’s Theses 2005

Université : Université de l’agriculture de Chine

Résumé
Poplar had strong adaptability, straight trunk form, growing fast and abroad application compare with other planting species. It was one of main planting species in northwest region. It was first selected planting species of fast-growing and high-yield plantation in edge of desert. Fast-growing and high-yield plantation was built in this area, which had important meaning to reasonable utilized desert and solved lack of industry raw materials in Ninxia. So, cultivation techniques of fast-growing and high-yield poplar plantation was studied in edge of Tengger desert. Seven mostly techniques included selection of variety, basal manue, after manuring, irrigation, intercrop, preventing and cure of longhorned beetle, and pruning were studied. The result showed that:In introduction aspect, growth of Populus deltoids Bartr.cv Zhonglin-46 Populus liaohenica Z.Wang and Populus deltoids Bartr.cv Zhonglin-115 was bigger than P.alba var.pyramidalis Bge. The three variety could be used firstly in fast-growing and high-yield poplar plantation. Survive rate of autumn planting was little higher than spring , but growth of autumn planting was bigger than spring obviously.In basal manure , Taking 3 kind of N,P,K compound fertilizers and P fertilizer as basal manure, the experiment was conducted in 3 levels. The results showed that in same level, various fertilizers had on evident different effects. The amount of fertilization could significantly affect the height increment of tree but did not significantly affect the diameter increment. By increase the application of organic fertilizer accompanied with chemical fertilizer, great different was found in height increment and diameter increment among different treatments. The treatment of 10kg organic fertiHzer + 0.5kg fertilizer 2 was obvious higher than contrast in promoting branch growth and dbh current annual increment of poplar. The treatment of 10kg organic fertilizer +0.5kg fertilizer 3 and different organic fertilizer +different P fertilizer was obvious higher than contrast in promoting dbh increment of poplar. After manuring of results showed that 3 treatment of urea promoted branch growth and dbh increment of 1-year-old poplar obviously,100g and 50g application was better, 150 g application was fall in promoting dbh increment. 100 g and 150 g fertilizer 3 application were better effect in promoting increment. 150 g Fertilizer 2 application were better effect in promoting increment. In fertilization manner, 150 g 4 kind fertilizer applied at twice was better than one time applied. Effect of early applied fertilizer (06-20) was better than later applied(07-18). The effect of different fertilizer followed the order of urea > fertilizer 3 > fertilizer 2 > fertilizer 1.The results of after manuring on 2-year-old poplar plantation showed 4 kind fertilizer lOOg 150g 250g application except lOOg fertilizer 1, promoted branch growth and dbh increment, effect promoting branch growth was better than dbh increment, difference level was significance. In fertilization manner, effect of three time applied fertilizer was better one time ; Effect of applied fertilizer in June twenty was batter than in may twenty. The variation of increment fertilizer followed the order of fertilizer 2 > fertilizer 1 > urea > fertilizer 3.In irrigation, furrow irrigation can save water 444 750m 3.hm -2 than patch irrigation, save 3270 4275m\hm’2 than flooding irrigation one time. Poplar increment was not difference in three irrigation style.In prevention and cure of longhomed beetle, two kind of pesticide, Fenitrothion and Luseweilei had insecticidal action. Because insecticidal availability component of Luseweilei was enwrapped, insecticidal period was prolonged, effect of control was significance.In intercropping , forest growth was increased by intercropping with grain. Results of intercropping with watermelon was the best.

Mots clés : Tengger desert; poplar; fast-growing and high-yield; cultivation techniques;

Présentation (CNKI)

Page publiée le 10 octobre 2017