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Interseeded pennycress and camelina yield and influence on row crops
Agronomy Journal ( IF 2.1 ) Pub Date : 2021-03-08 , DOI: 10.1002/agj2.20655
Swetabh Patel 1 , Andrew W. Lenssen 1 , Kenneth J. Moore 1 , Yesuf A. Mohammed 2 , Russ W. Gesch 2 , M. Scott Wells 3 , Burton L. Johnson 4 , Marisol T. Berti 4 , Heather L. Matthees 5
Affiliation  

Field pennycress (Thlaspi arvense L.) (PC) and winter camelina [Camelina sativa (L.) Crantz] (WC) have the potential to provide ecosystem services and economic incentives when adopted as an oilseed cover crops in corn (Zea mays L.)–soybean [Glycine max (L.) Merr.] rotations. However, PC and WC establishment and yield in the northern Corn Belt and their subsequent impact on row crops are not well known. This study was conducted to determine the effects of interseeding dates (R4, R5, and R6; and R6, R7, and R8 development stages for corn and soybean, respectively) and cover crop species (PC, WC, and winter rye [Secale cereale L.]) on seed yield and oil content of interseeded oilseeds (PC and WC) and relay soybean, and 3rd-year corn grain yield and quality. Study sites were initiated near Ames, IA; Morris and Rosemount, MN; and Prosper, ND. Late interseeding of PC and WC resulted in greater oilseed yield. Overall yields of PC (218–880 kg ha–1) and WC (15–770 kg ha–1), averaged across interseeding dates, were low when interseeded in corn and soybean. The PC and WC reduced relay-soybean grain yield by 13–32% and 13–42%, respectively. Corn grain yield and quality following relay soybean were not affected by the residual effects of oilseed cover crops. Based on the results of our study, we do not recommend relay cropping soybean with PC and WC in the upper Midwest.

中文翻译:

细心芥和亚麻荠混种产量及对大田作物的影响

田间仙人掌 ( Thlaspi arvense L.) (PC) 和冬茶 [ Camelina sativa (L.) Crantz] (WC) 当被用作玉米 ( Zea mays L. )的油籽覆盖作物时,具有提供生态系统服务和经济激励的潜力。 )–大豆 [甘氨酸最大值(L.) Merr.] 旋转。然而,玉米带北部的 PC 和 WC 定植和产量及其对大田作物的后续影响尚不清楚。本研究旨在确定间种日期(分别为玉米和大豆的 R4、R5 和 R6;以及 R6、R7 和 R8 发育阶段)和覆盖作物物种(PC、WC 和冬黑麦L.]) 对混种油籽(PC 和 WC)和接力大豆的种子产量和含油量,以及第 3 年玉米籽粒产量和质量的影响。研究地点在爱荷华州埃姆斯附近启动;莫里斯和罗斯蒙特,明尼苏达州;和繁荣,ND。PC 和 WC 的晚间播种导致更高的油籽产量。PC (218–880 kg ha –1 ) 和 WC (15–770 kg ha –1 ) 的总产量,在玉米和大豆中混播时,平均跨播日期较低。PC 和 WC 分别使接力大豆籽粒产量降低了 13-32% 和 13-42%。继接力大豆后玉米籽粒产量和品质不受油料覆盖作物残留效应的影响。根据我们的研究结果,我们不建议在中西部上游地区使用 PC 和 WC 连作大豆。
更新日期:2021-03-08
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