Customized fertilizers for higher yield and income: Evidences from on-farm validation in coconut – tuber crop intercropping system

Q4 Agricultural and Biological Sciences
G. Byju, D. Jaganathan, G. Suja
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Abstract

Fifteen on-farm experiments were conducted in tropical tuber crops intercropped in coconut gardens in Thiruvananthapuram, Kollam and Pathanamthitta districts, Kerala, during 2018-2021 for the validation of customized fertilizers formulated from on-station developed Site-Specific Nutrient Management (SSNM) practices. The validation experiments were done under the aegis of ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram, in a project funded by Coconut Development Board, Kochi, Kerala.Three treatments viz., T1: SSNM technology using customized fertilizers (CF) (SSNM), T2: present POP recommendation (POP) and T3: farmer's practice (FP) was evaluated in cassava, elephant foot yam and greater yam intercropped with coconut. System productivity and profitability were worked out for the different treatments based on yield and income from coconut and tuber crops in the respective treatments. Pooled analysis indicated that the coconut yield under intercropping with tuber crops under SSNM using CF was higher by 12-23% in comparison to coconut monocrop maintained unscientifically by the farmers. Tuber yield under CF proved superior over POP by 9.3% and FP by 37.4%. On an average, the net income from coconut-tuber crop intercropping system under SSNM using CF was ₹ 270396 per ha, whereas it was ₹ 198047 in POP and ₹146358 in FP and significantly outperformed sole coconut (₹ 7764).Thus, the results of the validation experiments indicated that the use of customized fertilizers in tuberous intercrops offered resilience with higher system productivity and profitability from coconut gardens.
定制肥料促进增产增收:椰子-块茎作物间作系统的农场验证证据
2018-2021 年期间,在喀拉拉邦 Thiruvananthapuram、Kollam 和 Pathanamthitta 地区的椰子园中间作热带块茎作物,进行了 15 项农场试验,以验证根据现场开发的特定地点养分管理(SSNM)实践配制的定制肥料。验证实验由位于 Thiruvananthapuram 的 ICAR 中央块茎作物研究所主持进行,该项目由喀拉拉邦科奇的椰子发展局资助:对木薯、象脚薯和大薯与椰子间作的三种处理(T1:使用定制肥料(CF)的 SSNM 技术(SSNM))、T2:目前的持久性有机污染物建议(POP)和 T3:农民实践(FP)进行了评估。根据不同处理中椰子和块茎作物的产量和收入,计算出不同处理的系统生产力和盈利能力。汇总分析表明,在 SSNM 条件下,采用 CF 与块茎作物间作的椰子产量比农民非科学种植的椰子单作产量高出 12-23%。事实证明,CF 的块茎产量比 POP 高出 9.3%,比 FP 高出 37.4%。平均而言,在 SSNM 下使用 CF 的椰子-块茎作物间作系统的净收入为每公顷 270396 ₹,而 POP 的净收入为 198047 ₹,FP 的净收入为 146358 ₹,并且明显优于单一椰子(7764 ₹)。因此,验证试验的结果表明,在块茎作物间作中使用定制肥料可提高椰子园的系统生产力和收益率。
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来源期刊
Journal of Plantation Crops
Journal of Plantation Crops Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
0.60
自引率
0.00%
发文量
15
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