Effects of Different Application Rates of Soybean Phospholipid Amendments on Yield and Nutrients Uptake in Maize-Wheat Rotation System

doi:10.11924/j.issn.1000-6850.casb2025-0610

Abstract

Abstract:

The purpose of this study is to evaluate the effect of soybean phospholipid amendments on crop yield and crop nutrients uptake, providing references for the crop yield and soil fertility improvement in the northwestern Shandong Province. A field experiment with five treatments was conducted in 2022 in Dezhou City, Shandong Province. The treatments were as follows: conventional management (T1), additional application of 300 kg/hm²(T2) and 600 kg/hm² (T3) soybean phospholipid amendments on the basis of T1, 20% (T4) and 30% (T5) reduction in chemical fertilizer input on the basis of T3. Crop yield, crop nutrient uptake and soil nutrient content were measured to evaluate the effects of soybean phospholipid amendments on crop yield and soil fertility. Compared with T1, T3 and T4 significantly increased maize yield by 11.3% and 16.0% through enhancing kernels per row and kernels per ear, while no significant effect was observed in T2 and T5. Wheat yield was significantly increased by 0.56 and 0.51 t/hm² through enhancing spike numbers. The application of soybean phospholipid amendments can increase soil available phosphorus content and plant phosphorus uptake. T3, T4 and T5 showed 31.0%-55.2% and 12.5%-15.4% enhancement in phosphorus uptake compared with T1 for maize and wheat, respectively. Therefore, in the maize-wheat rotation system of northwestern Shandong, it is recommended to apply 600 kg/hm² soybean phospholipid amendments on the basis of conventional management or with 20% reduction of chemical fertilizer.

Key words: soybean phospholipid amendments, maize, wheat, yield, nutrient uptake, soil nutrient, phosphorus

GUAN Xilin, TIAN Shenzhong, LIU Zhentian, DONG Qinde, DONG Liang, LI Qiang, GAO Xinhao, BIAN Wenfan, ZHANG Yufeng. Effects of Different Application Rates of Soybean Phospholipid Amendments on Yield and Nutrients Uptake in Maize-Wheat Rotation System[J]. Chinese Agricultural Science Bulletin, 2026, 42(7): 8-14.

Figures/Tables 8

References 32

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处理	玉米				小麦
处理	穗行数	行粒数	穗粒数	千粒重/g	穗数/(万个/hm²)	穗粒数	千粒重/g
T1	15.6±0.12a	33.7±0.42b	526±2.53c	254±13.43a	495±24b	34.4±1.9a	43.9±1.5a
T2	16.2±0.12a	34.3±1.82b	556±29.21bc	280±13.26a	525±12ab	34.3±0.9a	43.0±0.7a
T3	16.3±0.15a	36.1±0.83ab	589±12.86ab	275±19.36a	551±25a	33.2±0.6a	43.8±1.7a
T4	15.8±0.73a	38.9±10.59a	615±15.55a	274±0.47a	545±12a	33.1±0.5a	43.7±1.1a
T5	16.2±0.15a	36.7±0.93ab	594±16.76ab	262±18.20a	543±25a	33.8±0.7a	43.3±0.9a

处理	玉米				小麦
处理	穗行数	行粒数	穗粒数	千粒重/g	穗数/(万个/hm²)	穗粒数	千粒重/g
T1	15.6±0.12a	33.7±0.42b	526±2.53c	254±13.43a	495±24b	34.4±1.9a	43.9±1.5a
T2	16.2±0.12a	34.3±1.82b	556±29.21bc	280±13.26a	525±12ab	34.3±0.9a	43.0±0.7a
T3	16.3±0.15a	36.1±0.83ab	589±12.86ab	275±19.36a	551±25a	33.2±0.6a	43.8±1.7a
T4	15.8±0.73a	38.9±10.59a	615±15.55a	274±0.47a	545±12a	33.1±0.5a	43.7±1.1a
T5	16.2±0.15a	36.7±0.93ab	594±16.76ab	262±18.20a	543±25a	33.8±0.7a	43.3±0.9a

处理	秸秆养分浓度/(g/kg)			籽粒养分浓度/(g/kg)			养分吸收量/(kg/hm²)
处理	N	P	K	N	P	K	N	P	K
T1	10.0a	1.28b	12.7a	12.9a	2.08d	3.93a	208a	29c	147b
T2	10.1a	1.62a	13.7a	13.0a	2.30c	3.70a	214a	36bc	162a
T3	9.7a	1.75a	13.6a	13.8a	2.55ab	3.87a	227a	42ab	168a
T4	9.4a	1.82a	14.0a	13.5a	2.63a	3.93a	232a	45a	181a
T5	9.6a	1.64a	13.9a	13.8a	2.50b	3.87a	216a	38b	164a

处理	秸秆养分浓度/(g/kg)			籽粒养分浓度/(g/kg)			养分吸收量/(kg/hm²)
处理	N	P	K	N	P	K	N	P	K
T1	10.0a	1.28b	12.7a	12.9a	2.08d	3.93a	208a	29c	147b
T2	10.1a	1.62a	13.7a	13.0a	2.30c	3.70a	214a	36bc	162a
T3	9.7a	1.75a	13.6a	13.8a	2.55ab	3.87a	227a	42ab	168a
T4	9.4a	1.82a	14.0a	13.5a	2.63a	3.93a	232a	45a	181a
T5	9.6a	1.64a	13.9a	13.8a	2.50b	3.87a	216a	38b	164a

处理	秸秆养分浓度/(g/kg)			籽粒养分浓度/(g/kg)			养分吸收量/(kg/hm²)
处理	N	P	K	N	P	K	N	P	K
T1	5.10a	0.39b	11.0b	16.0b	2.87c	2.97a	156a	24b	104b
T2	5.31a	0.45a	13.0a	16.6ab	3.06b	3.06a	162a	26a	120a
T3	4.72a	0.48a	13.0a	17.5a	3.24a	3.09a	164a	27a	120a
T4	5.08a	0.47a	13.1a	16.5ab	3.22a	3.03a	159a	27a	120a
T5	4.80a	0.46a	13.3a	16.2ab	3.23a	2.93a	155a	27a	121a