Three methods to increase soybean yield, simple and practical

Thinning

After soybean seedlings emerge, thinning early on the basis of a full stand is a proven yield-increasing measure. Its effect depends mainly on how early thinning is done; generally it should be carried out promptly when the two opposite unifoliate leaves have unfolded.

Seedling pressing

When the first compound leaf of the soybean seedling has unfolded, choose a sunny noon and press the seedlings along the rows with a wooden roller drawn by animal power or machinery. When pressing, be careful to avoid cloudy days or sunny mornings, so as not to break the seedlings.

Pinching

At the early flowering or full flowering stage of soybean, remove about 2 cm from the top of the main stem by hand. According to early experimental observations by researchers of this variety, 8 to 10 days after pinching the soybean variety Yuejin 4, the leaves became larger and thicker, the leaf color turned green, and the growth was strong; plant height was 15 to 20 cm shorter than the control, the number of pods per plant increased by 15 to 17, the 100-grain weight increased by 0.3 to 0.7 g, and the yield increased by 7.2% to 10.8%.