Compound base fertilizer and additional fertilizer for jatropha curcas

Abstract

The invention discloses a compound base fertilizer for jatropha curcas, which comprises nitrogen fertilizer, phosphate fertilizer and potassium fertilizer, and also comprises the following components in percentage by weight: 0.1 to 1.0 percent of amino acid chelated rare earth, 15 to 30 percent of nitro humic acid, 0.55 percent of ferrous sulfate, 0.4 percent of disodium tetraborate, 2 percent ofmanganese sulfate, 0.5 percent of copper sulfate, 0.25 percent of zinc sulfate and 0.2 percent of ammonium heptamolybdate, wherein the total N content of the compound base fertilizer is 11 to 13 percent, the effective P2O5 content is 5.5 to 6.5 percent and the K2O content is 6.5 to 7.5 percent. The invention also discloses a flower and fruit promoting compound additional fertilizer and a fruit swelling additional fertilizer for the jatropha curcas. The corresponding compound base fertilizer or the additional fertilizer is selected according to different growth periods of different jatropha curcas and applied in large area so as to realize spring transplant and autumn fruiting of the current year and high yield period in three years, each mu produces over 750 kilograms of dry fruits, the oil content of seeds is over 41 percent, and the oil content of kernels reaches 65 percent.

Description

technical field [0001] The invention relates to a fertilizer mixture, in particular to a compound base fertilizer for Jatropha curcas, which is suitable for application before Jatropha curcas transplantation. The invention also relates to the flower-inducing and fruit-increasing compound topdressing and the swollen and strong fruit compound topdressing suitable for Jatropha curcas topdressing. Background technique [0002] Jatropha curcas is also known as Qingtongmu, Xiaotongzi, and stinky tung tree. Euphorbiaceae shrub, 3-5 meters high, native to tropical America, growing in tropical and subtropical regions. Jatropha curcas has been introduced to my country for more than 300 years. Wild Jatropha curcas is mainly distributed in Guangdong, Guangxi, Qiong, Yunnan, Guizhou, Sichuan and other provinces. The existing resources are mostly in Yunnan, Guizhou and Sichuan. Jatropha curcas can be developed as a whole plant, and its fruit, branches and leaves can be utilized. The oi...

AI Technical Summary

Problems solved by technology

Farmers in many places even use a single nitrogen or phosphorus fertilizer as base fertilizer or top dressing. Although some large-scale planting bases also use some compound fertilizers, the effective nutrient ratio of nitrogen (N), phosphorus (P) and potassium (K) Unscientific, unbalanced fertilizer supply, insufficient absorption of fertilizer efficiency and failure to promote soil improvement

There is also no special compound fertilizer suitable for the characteristics of different growth periods of Jatropha curcas, resulting in common problems such as poor growth of Jatropha curcas canopy, late fruit bearing, less fruit bearing, small fruit, and oil content.

In some places, no fruit has been planted for two years, and few fruits have been planted for four years. The dry fruit yield per mu is mostly below 600 kg, and the oil content of the seeds is also lower than 36%. The economic benefits are low, and it has become a bottleneck restricting the industrialization of jatropha planting.