Olive Formula Fertilization Technology Research

Olive(Olea europaea L.) belongs to genus Olea of the family Oleace. Olive is an important economic forest tree, which both oil and fruit tree species. Its fruit are rich in oil, and its shape is like olives, so people named it as the olive. Wudu, in Gansu province of China, is one of the main cultivation area of Chinese olive, where it is the most suitable place for the growth of olive, this area is in the Bailong river valley area of Longnan, Gansu of China. But it has a problem that is lower productivity. Besides climate factors, extensive management mode of olive orchard that leads to the low soil fertility, and tree nutrition imbalances are both important reasons of low yield. Therefore, in order to understand the soil nutrient fertility status of olive orchard, the soil of olive orchard was investigated which is representative in Wudu, Then the soil nutrient status in that region. was analyzed We carried out the fertilization experiment. The cutivars were aelceted as Leccino and EZ-8, and the experiment included fertilizer and single factor. In the process of test, olive branches, fruit growth, development rules, the dynamic changes of the olive leaf nutrient content of different phonological phase, and the yield were all determined. From the analysis of the experimental data, we can get the nutrient standards of olive garden soil, and put forward the oil olives’ dressing time, numbers and kinds of fertilizers, which can provide an essential basis for making reasonable fertilization strategies for soil management and fertilization in olive orchards.1. When olive grows from bud,full year growth rhythm of the process shows as "fast-slow-fast-slow". It has three growth peaks which are from April 1st to15 th, from June 16 th to 30 th and from August 14 th to 20 th. It’s a total of 150 days for the olives to grow from results to full maturity, which has to go through two growth peaks---from June 16 th to July 15 th and from September 15 th to 30 th.2.Dynamic analysis aimed at branch N, P, K elements shows that: olive has a higher demand for N, P and K element, which is in the two stages : pollination period and fruit enlargement period; fruit-set period also needs a large amount of N and P elements but less amount on K; Instead,Young fruit period for nutrition status need a lot of K elements.3. According to new shoots increment, the growth disciplinarian of fruits, and the dynamic analysis of branch N, P, K elements, it shows that: In wudu,Longnan fertilization measures in the following four stages should be paid attention: First, after the harvesting of the olive, compound fertilizer containing N, P, K should be used. Second, N, P, fertilizer should be used from March to April. Third,from may 30 th to June 15 th, N, P, fertilizer should begin to be used. Fourth, from June to July,it Should choose fertilizer which contains K.4. Experimental results for potted young trees show that: the use of N, P, and K fertilizer aimed at the young olive branches has different promoting effect towards branch growth: processing 4 is the best, namely 100 g per plant; to P fertilizer, processing 3 is the best, namely 100 g per plant. The fertilization of K affects growth, but there is no significant difference of each level. This indicates that young Olive is not sensitive to the changes of K-fertilizer.5. The results of the early Olive trees in single factor experiment show that: the fertilization of N, P, K can improve the growth of the branch in the current year, and processing 3 is the best(125g per plant). To P fertilizer, processing 2 is the best(150 g per plant); To K fertilizer, processing 3 is the best(200 g per plant). B fertilizer and Zn fertilizer will also promote the growth of fresh tip, but the results are both not so significant. When the tree was applied to N, P, K Zn, B fertilization, all of them can improve the quality of flower buds, which fertilizer works best with the N, K, and B. To N fertilizer, processing 2 is the best(50 g per plant); to K fertilizer, processing 3 is the best(150g per plant); to B fertilizer, processing 3 is the best(150 g per plant). The fertilization has a significant result, and the flower buds effectively increased by more than 20%. The fertilization of N, P, K, Zn, B can all increase the production of each plant. To N fertilizer, processing 1 is the best(50g per plant); to P fertilizer, processing 3 is the best(200g per plant); to B fertilizer, processing 3 is the best(200g per plant); to Zn fertilizer, processing 3 is the best(125 g per plant), and all of them increased by more than 30%.6. The results of the early Olive trees in formula fertilization factor experiment show that: the primary and secondary factors which affect the growth of Olive are: C>E>B>A>D, namely K>Zn>P>N>B, and the best combination of fertilization choice is A2B4C1D3E2, namely the best combination of each element to improve the growth of the fresh branch is N:50 g;P:200g;K:50g;B:150g;Zn:50g. Primary and secondary factors which affect the effective flower bud ratio are: A>D>C>E>B, namely N>B>K>Zn>P, and the best combination of fertilization choice is A3D4C1E4B3, namely best combination of each element to increase the ratio of the effective flower bud is N:100g;P:150g;K:50g;B:200g;Zn:125g. Primary and secondary factors which affect the production of each plant are B>A>C>E>D,namely P>N >K>Zn >B and the best combination choice,is A1B1C2D2E1,namely each element fertilization of N25 g;P50 g;K100 g;B100 g;Zn25 g.