Boron Magnesium Calcium Soil Conditioner: Effects on Acidified Soil Inhibition in Red Soil Dry Land

doi:10.11924/j.issn.1000-6850.casb20191100811

Abstract

Abstract:

Aiming at the problem of acidified red soil dry land in southern China, the paper aims to provide technical support for the application and promotion of boron magnesium calcium soil conditioner on the red soil. Taking sweet potato as the main crop, we compared the application of boron magnesium calcium soil conditioner with 750 kg/hm ² (T₅₀), 1500 kg/hm ² (T₁₀₀) and 2250 kg/hm ² (T₁₅₀) and conventional fertilization (CK) by field test to study the effect on sweet potato yield in red soil dry land in Jiangxi and the acidified soil inhibition. The results showed that: compared with CK, the application of boron magnesium calcium soil conditioner for two consecutive years could increase the sweet potato yield by 22.45%-78.40%, the soil pH by 0.13-0.30 units, and the total amount of soil exchangeable acid decreased by 0.07-0.28 cmol/kg, overall, the improvement effect was better with the increase of the amount of boron magnesium calcium soil conditioner. There was no clear influence on the alkali nitrogen content of soil, and the effect on soil organic matter, available phosphorus and available potassium was not significant. In general, the application of boron magnesium calcium soil conditioner in red soil dry land can significantly increase the sweet potato yield, and also play a role in increasing soil pH and activating soil phosphorus and potassium and so on.

Key words: boron magnesium calcium soil conditioner, sweet potato, red soil dry land, acidified soil, soil available N,P,K, soil organic matter

CLC Number:

S156.2

Hu Dandan, Wang Huiming, Wu Changqiang, Hu Qiuping, Song Huijie, Liu Jinyou, Hu Huiwen. Boron Magnesium Calcium Soil Conditioner: Effects on Acidified Soil Inhibition in Red Soil Dry Land[J]. Chinese Agricultural Science Bulletin, 2020, 36(11): 82-85.

Figures/Tables 3

References 28

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处理	2017年	2018年
CK	24285.6b	22983.6c
T₅₀	42072.3a	28144.8b
T₁₀₀	43326.45a	30760.35ab
T₁₅₀	39564ab	32593.8a

处理	2017年	2018年
CK	24285.6b	22983.6c
T₅₀	42072.3a	28144.8b
T₁₀₀	43326.45a	30760.35ab
T₁₅₀	39564ab	32593.8a

试验年度	处理	pH	交换性酸总量/(cmol/kg)	交换性氢/(cmol/kg)	交换性铝/(cmol/kg)
2017	CK	4.88b	2.07a	0.12a	1.95a
	T₅₀	5.05ab	1.95ab	0.11a	1.84a
	T₁₀₀	5.06ab	1.93b	0.09a	1.84a
	T₁₅₀	5.17a	1.79b	0.08a	1.71a
2018	CK	4.86b	2.09a	0.12a	1.97a
	T₅₀	4.99ab	2.02a	0.11a	1.91a
	T₁₀₀	5.03ab	1.99a	0.11a	1.88ab
	T₁₅₀	5.16a	1.87b	0.09a	1.78b

试验年度	处理	pH	交换性酸总量/(cmol/kg)	交换性氢/(cmol/kg)	交换性铝/(cmol/kg)
2017	CK	4.88b	2.07a	0.12a	1.95a
	T₅₀	5.05ab	1.95ab	0.11a	1.84a
	T₁₀₀	5.06ab	1.93b	0.09a	1.84a
	T₁₅₀	5.17a	1.79b	0.08a	1.71a
2018	CK	4.86b	2.09a	0.12a	1.97a
	T₅₀	4.99ab	2.02a	0.11a	1.91a
	T₁₀₀	5.03ab	1.99a	0.11a	1.88ab
	T₁₅₀	5.16a	1.87b	0.09a	1.78b

试验年度	处理	碱解氮/(mg/kg)	有效磷/(mg/kg)	速效钾/(mg/kg)	有机质/(g/kg)
2017	CK	95.49a	66.97a	36.34a	17.89a
	T₅₀	90.60a	68.52a	39.36ab	17.95a
	T₁₀₀	99.07a	74.57a	42.27ab	17.58a
	T₁₅₀	91.89a	77.93a	44.93b	18.33a
2018	CK	97.35a	64.58a	36.34a	17.42a
	T₅₀	93.24a	67.34a	39.36ab	17.56a
	T₁₀₀	90.38a	74.58a	42.27ab	17.67a
	T₁₅₀	91.65a	76.48a	44.93b	17.91a