CHEN Huabin, TIAN Juncang, LI Wangcheng, et al. Experiment and Comprehensive Evaluation of Photosynthesis, Yield and Quality of Broccoli Under Drip Irrigation Based on Water and Fertilizer Coupling[J]. 2021, 35(6): 235-242.
DOI:
CHEN Huabin, TIAN Juncang, LI Wangcheng, et al. Experiment and Comprehensive Evaluation of Photosynthesis, Yield and Quality of Broccoli Under Drip Irrigation Based on Water and Fertilizer Coupling[J]. 2021, 35(6): 235-242. DOI: 10.13870/j.cnki.stbcxb.2021.06.032.
Experiment and Comprehensive Evaluation of Photosynthesis, Yield and Quality of Broccoli Under Drip Irrigation Based on Water and Fertilizer Coupling
The effects of different water and fertilizer combinations on the photosynthesis
yield
water and fertilizer use efficiency and quality of broccoli under drip irrigation were studied. The regression model and principal component comprehensive evaluation system of yield quality and water and fertilizer factors of broccoli were established to seek the optimal combination of irrigation amount and fertilizer amount
so as to provide technical basis for improving the quality and efficiency of efficient water-saving irrigation of broccoli. Taking broccoli as the experimental crop
drip irrigation under mulch was adopted
and two factors and three levels randomized block experiment design was adopted. The irrigation amount was set at three levels
which were 1 740
2 175
2 610 m3/hm2
and the fertilization amount were 1 200
1 500
1 800 kg/hm2. There were nine treatments. The results showed that in the growth period
the precipitation was 20.8 mm
the irrigation amount was 2 610 m3/hm2
and the fertilization amount was 1 800 kg/hm2. The yield and quality of broccoli were the best
2 610 m3/hm2 irrigation and 1 800 kg/hm2 fertilization
and the comprehensive evaluation score was also the highest
which indicated that the high water and high fertilizer treatment was the most favorable for the growth of broccoli
and it was a suitable irrigation and fertilization strategy for local drip irrigation of broccoli.
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