Drip fertilization method for pineapples

Abstract

The invention relates to a drip fertilization method for pineapples and belongs to the technical field of agricultural production. The amount of fertilizer applied to each hectare of land is shown as follows: 375-562.5 kg of base fertilizer is applied in the field planting period; 205.5-235.5 kg of the base fertilizer is subjected to drip fertilization for the first time 20-30 d after the field planting; 303.75-367.5 kg of the base fertilizer is subjected to drip fertilization for the second time 90-120 d after the field planting; 600-667.5 kg of the base fertilizer is subjected to drip fertilization for the third time 150-165 d after the field planting; 637.5-735 kg of the base fertilizer is subjected to drip fertilization for the fourth time 180-195 d after the field planting; 562.5-622.5 kg of the base fertilizer is subjected to drip fertilization for the fifth time 210-225 d after the field planting; 750-847.5 kg of the base fertilizer is subjected to drip fertilization for the sixth time 240-255 d after the field planting; 330-375 kg of the base fertilizer is subjected to drip fertilization for the seventh time 15-30 d before flower forcing; 307.5-375 kg of the base fertilizer is subjected to drip fertilization for the eighth time after flowers of pineapple fade; the baser fertilizer is applied in a furrow application mode; through eight times of drip fertilization, the fertilizer is dissolved in irrigation water until the fertilizer is completely dissolved, a drip irrigation pipe is used for application, and land is irrigated with clear water for 15 min firstly during drip fertilization each time and then irrigated with clear water for another 15 min after water and the fertilizer are applied. By means of the fertilization method, demands of the pineapple for nutrients in different growth periods can be met, the pineapple yield and the commodity fruit yield are increased, and the economic benefits are increased.

Description

technical field [0001] The invention relates to a pineapple drip irrigation and fertilization method, which belongs to the technical field of agricultural production. Background technique [0002] Pineapple is the third largest tropical fruit in the world, and China is one of the top ten producers of pineapple in the world. my country's pineapples are mainly distributed in Guangdong, Hainan, Fujian, Guangxi, Yunnan, and Taiwan. Pineapple production has become a pillar industry of the rural economy in the main production areas of South China, making positive contributions to increasing farmers' income. However, my country's per unit yield is low, only 38% of pineapple high-yielding countries. One important reason is that the time and method of fertilization are unreasonable. In traditional cultivation methods, pineapple fertilization is mostly applied by spreading, and the fertilizer cannot be effectively dissolved, and pineapple plants are closed after entering the vigorous...

AI Technical Summary

Problems solved by technology

However, my country's per unit yield is low, only 38% of pineapple high-yielding countries. One important reason is that the time and method of fertilization are unreasonable

In traditional cultivation methods, pineapple fertilization is mostly applied by spreading, and the fertilizer cannot be effectively dissolved, and pineapple plants are closed after entering the vigorous growth period, making it difficult to fertilize in the field, and the fertilizer utilization rate is low, which cannot meet the nutrient needs of pineapple in each growth period

[0003] Due to seasonal and regional droughts in southern China, pineapple water depends on rainfall, which is difficult to meet and adapt to the needs of intensive production. The rainfall does not match the time of fertilization, and does not match the nutrient requirements of pineapple. The fertilizer utilization rate is low.

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