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...

Examples

Embodiment 1

[0020] A drip fertigation method, the fertilization method is: field planting period, basal fertilizer application; 23d after field planting, drip irrigation and fertilization for the first time; 108 days after field planting, drip irrigation and fertilization for the second time; 160 days after field planting, drip irrigation and fertilization for the third time; 190 days after field planting, The fourth time of drip irrigation and fertilization; 217 days after planting, the fifth time of drip irrigation and fertilization; 253 days after planting, the sixth time of drip irrigation and fertilization; 21 days before flowering, the seventh time of drip irrigation and fertilization;

[0021] Fertilization formula The effective nutrient content of basal fertilizer per hectare is: phosphorus pentoxide 90kg; converted into commercial products: superphosphate 562.5kg. The active ingredients of the first drip irrigation and fertilization are: nitrogen 25.23kg, phosphorus pentoxide 13.5...

Embodiment 2

[0025] A drip fertigation method, the fertilization method is: field planting period, basal fertilizer application; 26 days after field planting, drip irrigation and fertilization for the first time; 104 days after field planting, drip irrigation and fertilization for the second time; 158 days after field planting, drip irrigation and fertilization for the third time; 192 days after field planting, The fourth drip irrigation and fertilization; 220 days after planting, the fifth drip irrigation and fertilization; 248 days after planting, the sixth drip irrigation and fertilization; 24 days before flowering, the seventh drip irrigation and fertilization; after the pineapple fades, the eighth drip irrigation and fertilization.

[0026]Fertilization formula The effective nutrient content of basal fertilizer per hectare is: phosphorus pentoxide 60kg; converted into commercial products: superphosphate 375kg. The active ingredients of the first drip irrigation and fertilization are: n...

Embodiment 3

[0030] A drip fertigation method, the fertilization method is: field planting period, basal fertilizer application; 25 days after field planting, drip irrigation and fertilization for the first time; 109 days after field planting, drip irrigation and fertilization for the second time; 163 days after field planting, drip irrigation and fertilization for the third time; 192 days after field planting, The fourth time of drip irrigation and fertilization; 221 days after planting, the fifth time of drip irrigation and fertilization; 251 days after planting, the sixth time of drip irrigation and fertilization; 22 days before flowering, the seventh time of drip irrigation and fertilization;

[0031] The effective nutrient content of the base fertilizer is: phosphorus pentoxide 72kg; converted into a commercial product: superphosphate 450kg. The active ingredients of the first drip irrigation and fertilization are: nitrogen 22.95kg, phosphorus pentoxide 12.6kg, potassium oxide 82.8kg; ...

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...

Examples

Embodiment 1

[0020] A drip fertigation method, the fertilization method is: field planting period, basal fertilizer application; 23d after field planting, drip irrigation and fertilization for the first time; 108 days after field planting, drip irrigation and fertilization for the second time; 160 days after field planting, drip irrigation and fertilization for the third time; 190 days after field planting, The fourth time of drip irrigation and fertilization; 217 days after planting, the fifth time of drip irrigation and fertilization; 253 days after planting, the sixth time of drip irrigation and fertilization; 21 days before flowering, the seventh time of drip irrigation and fertilization;

[0021] Fertilization formula The effective nutrient content of basal fertilizer per hectare is: phosphorus pentoxide 90kg; converted into commercial products: superphosphate 562.5kg. The active ingredients of the first drip irrigation and fertilization are: nitrogen 25.23kg, phosphorus pentoxide 13.5...

Embodiment 2

[0025] A drip fertigation method, the fertilization method is: field planting period, basal fertilizer application; 26 days after field planting, drip irrigation and fertilization for the first time; 104 days after field planting, drip irrigation and fertilization for the second time; 158 days after field planting, drip irrigation and fertilization for the third time; 192 days after field planting, The fourth drip irrigation and fertilization; 220 days after planting, the fifth drip irrigation and fertilization; 248 days after planting, the sixth drip irrigation and fertilization; 24 days before flowering, the seventh drip irrigation and fertilization; after the pineapple fades, the eighth drip irrigation and fertilization.

[0026]Fertilization formula The effective nutrient content of basal fertilizer per hectare is: phosphorus pentoxide 60kg; converted into commercial products: superphosphate 375kg. The active ingredients of the first drip irrigation and fertilization are: n...

Embodiment 3

[0030] A drip fertigation method, the fertilization method is: field planting period, basal fertilizer application; 25 days after field planting, drip irrigation and fertilization for the first time; 109 days after field planting, drip irrigation and fertilization for the second time; 163 days after field planting, drip irrigation and fertilization for the third time; 192 days after field planting, The fourth time of drip irrigation and fertilization; 221 days after planting, the fifth time of drip irrigation and fertilization; 251 days after planting, the sixth time of drip irrigation and fertilization; 22 days before flowering, the seventh time of drip irrigation and fertilization;

[0031] The effective nutrient content of the base fertilizer is: phosphorus pentoxide 72kg; converted into a commercial product: superphosphate 450kg. The active ingredients of the first drip irrigation and fertilization are: nitrogen 22.95kg, phosphorus pentoxide 12.6kg, potassium oxide 82.8kg; ...

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