Method for improving yield of peanut in moderate and severe saline-alkali lands
A technology for severe saline-alkali land and production volume, applied in land preparation methods, botanical equipment and methods, horticulture, etc., can solve problems such as low technology, economic benefits, low social and ecological benefits, and immature planting technology, and achieve safety. , The effect of promoting farmers' income and improving agricultural planting structure
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Embodiment 1
[0028] 1) Soil preparation by pressing salt:
[0029] Before planting, level the land, repair the ridges, and carry out fresh water irrigation to press salt, and the irrigation volume is 150m 3 per mu, keep the surface of the ground in a 1-3cm water layer for 2-3 days, and the soil water content reach the soil saturation water content, so that the surface soil, especially the 0-20cm plow layer soil salt, will infiltrate and infiltrate into the deep soil with water to achieve pressure salt desalination the goal of;
[0030] 2) Fertilize and choose peanut varieties and sowing timing:
[0031] After watering and pressing salt, wait for the water to evaporate until the soil moisture content reaches 70% to 80% of the soil moisture, then plow and fertilize the soil. Fertilization amount: 5000 kg / mu of decomposed organic fertilizer, 40 kg / mu of urea, 300 kg of general calcium / mu, boric acid 3.0 kg / mu; re-apply organic fertilizer, calcium fertilizer and boron fertilizer; choose ...
Embodiment 2
[0035] 1) Soil preparation by pressing salt:
[0036] Before planting, level the land, repair ridges and ditches, and carry out fresh water irrigation to press salt, and the irrigation volume is 170m 3 per mu, keep the surface of the ground in a 1-3cm water layer for 2-3 days, and the soil water content reach the soil saturation water content, so that the surface soil, especially the 0-20cm plow layer soil salt, will infiltrate and infiltrate into the deep soil with water to achieve pressure salt desalination the goal of;
[0037] 2) Fertilize and choose peanut varieties and sowing timing:
[0038] After watering and pressing salt, wait for the water to evaporate until the soil moisture content reaches 70% to 80% of the soil moisture, then plow and fertilize the soil. Fertilization amount: 6000 kg / mu of decomposed organic fertilizer, 50 kg / mu of urea, 350 kg of general calcium / mu, boric acid 3.5 kg / mu; reapply organic fertilizer, calcium fertilizer and boron fertilizer; ...
Embodiment 3
[0042] 1 Materials and methods
[0043]1.1 Test varieties
[0044] Select the salt-alkali tolerant peanut varieties Huayu 25, Huayu 31 and Huayu 36.
[0045] 1.2 Method
[0046] Set up a field plot test, set up a flat sowing film mulching test under different sowing dates, repeat 3 times, and arrange randomly. Before planting, apply 5000-6000 kg / mu of decomposed machine fertilizer, 40-50 kg / mu of urea, 300-350 kg / mu of general calcium, and 3.0-3.5 kg / mu of boric acid.
[0047] Sowing time: The experiment adopted a random block design, and a total of 10 sowing dates were set up, namely April 25 (T1), April 30 (T2), May 5 (T3), May 10 (T4), May 15 (T5), May 20 (T6), May 25 (T7), May 30 (T8), June 4 (T9) and June 9 (T10).
[0048] It adopts the method of flat cropping and film covering, double-grain sowing, the distance between holes is 0.17m, and the density is 210,000 holes·hm -2 , repeated 3 times. Row spacing is 0.425m (large row is 0.55m, small row is 0.30m), row lengt...
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