High-yield and high-efficiency fertilization management technology with low non-point source pollution risk for chive
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A non-point source pollution and fertilization management technology, applied in the agricultural field, can solve the problems of reducing the use of chemical fertilizers and organic fertilizers
Active Publication Date: 2021-11-09
JIANGSU ACADEMY OF AGRICULTURAL SCIENCES
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[0004] The technical problem to be solved by the present invention is for the in-depth research on the cultivation of Xinghua chives, especially for the research on the dual effects of nitrogen nutrient input on high yield, high efficiency and low non-point source pollution that has not been noticed in its fertilization management research, Therefore, by finding the total input amount of nitrogen nutrients suitable
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Embodiment 1
[0028] The experiment site is located in the typical duotian shallot planting area of Xiejia Village, Zhuhong Town, Xinghua City, surrounded by river ditches and connected to other areas by bridges, and the soil is loamy clay. The soil nutrient index is shown in Table 1:
[0029] Table 1
[0030]
[0031] The chives used in the experiment are characteristic chives, which have strong meristematic ability and are mainly used to produce dehydrated vegetables.
[0032] Commercially available organic fertilizers were purchased from Tuyile Organic Fertilizer Factory in Xinghua City. The organic fertilizers were chicken manure and mushroom slag organic fertilizers, and the nitrogen content was 0.79%.
[0033] Experiment as follows:
[0034] (1) The input amount of nitrogen nutrient in the whole growth period is controlled according to the total input amount.
[0035] Nitrogen nutrient input in the whole growth period = basal fertilizer nitrogen nutrient input + topdressing ni...
Embodiment 2
[0052]With reference to the method in Example 1, different from Example 1, the commercially available organic fertilizer adopted in this example is pig manure mushroom slag organic fertilizer, and its nitrogen content is 1.56%, and its application rate is calculated to be 1766kg / mu.
Embodiment 3
[0054] With reference to the method in Example 1, different from Example 1, the commercially available organic fertilizer adopted in this example is cow dung mushroom slag organic fertilizer, and its nitrogen content is 1.31%, and its application rate is calculated to be 2109kg / mu.
[0055] After selecting different commercial organic fertilizers for planting in Example 1, Example 2, and Example 3, the growth indicators and yield indicators of shallots in each stage were compared, and it was found that the impact of organic fertilizer types on growth indicators and yield indicators was in the statistics. did not reach the significance level. This shows that the commercially available organic fertilizer formed from livestock and poultry manure and mushroom dregs has little difference in effect at equal nitrogen levels.
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Abstract
The invention relates to a high-yield and high-efficiency fertilization management technology with a low non-point source pollution risk for chive. According to the technology, indexes such as plant height and single plant weight of chive plants after organic fertilizer and chemical fertilizer are applied can be accurately controlled through control for various factors such as nitrogen input total amount, organic and inorganic different-source nitrogen input structures, fine topdressing and the like, and meanwhile, the net production of harvest is obviously higher than the net production of harvest of pure application of chemical fertilizer and matched application of common chemical fertilizer and organic fertilizer. Besides, after chive planting is carried out by adopting the nitrogen nutrient structure control technology, the content of nitrate nitrogen in soil of a soil subsurface layer (20-40 cm) and the total nitrogen concentration in runoff water due to leaching loss are obviously reduced, and therefore, it is indicated that the fertilization technology can effectively reduce the risk of nitrogen non-point source pollution, is also beneficial to weakening the degree of soil acidification and salinization, reduces the content of nitrate nitrogen in the soil, improves soil fertility, increases the content of available phosphorus and rapidly available potassium in the soil and can also increase the content of organic matter in the soil.
Description
technical field [0001] The invention relates to the field of agriculture, in particular to planting field management, and more specifically to the management technology of shallot fertilization. Background technique [0002] Chives, as one of the important categories of dehydrated vegetables for foreign trade export, are an important industry for local farmers to increase their income. It has strong meristematic ability and high yield, and the yield per mu can reach more than 10,000 catties. [0003] In order to satisfy the stable and high yield of chives, a large amount of nutrient input is often required. Among the nutrients required for the growth of chives, nitrogen is the key element for the high yield of chives. In order to meet high yields, the common practice is to use a large amount of chemical fertilizers. However, a lot of practice has proved that excessive use of chemical fertilizers can easily lead to soil acidification, salinization, and soil fertility reducti...
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