3114
While Rashi brings both explanations, the Rashbam explains the whole pasuk regarding Shabbat. The reason, he says, that plowing and harvesting are specified among the melachot is to tell us that even basic needs may not be seen to on Shabbat. We might have otherwise thought that melacha on Shabbat was permitted not only to save a life but also for crucial needs.
The Seforno connects the two parts of the pasuk differently. The Torah tells us that just as keeping one day of Shabbat helps bring success to the work on the six days of the week, so too does refraining from working the field one year out of seven bring blessing to the other six years.
We now find ourselves in the midst of the Shemitta year. It is thus important to strengthen our resolve to follow it as appropriate and understand the message behind it. The challenge for the farmer to keep the laws properly is very difficult. The Torah, after all, expects Bnei Yisrael to ask, "What shall we eat in the seventh year?" and answers that "I will command my blessing to you in the sixth year, and it will produce for the three years" (Vayikra 25:20-21). Chazal greatly praised the farmers who kept the laws of Shemitta, applying to them the pasuk (Tehillim 103:20) "the brave of strength who do His Will" (Vayikra Rabba 1). The problem is that most poskim posit that the special blessing was promised only when the observance of Shemitta was mandated by Torah law (se S’ma 67:2 based on Tosafot). Therefore, over a century ago, efforts were made to make the year of Shemitta observance one that the population could handle. Three halachic solutions that exist are the heter mechira, use of otzar beit din, and development of systems of growing such as matza menutak (planting detached from the ground). See our teshuva (in Bemareh Habazak III) which was signed by Rav Yisraeli z.t.l. in this regard.
Let’s hope we will soon merit keeping the laws of Shemitta on a Torah level in the most careful way possible when we will be in a state where "the rest of the land" can be established in all of its sanctity in the Holy Land.
break from a tradition but an addition of a link.

Pruzbul
Rabbi Yirmiyohu Kaganoff | Elul 17 5782

The Bracha on Blossoming Trees
Rabbi Yirmiyohu Kaganoff | Adar II 27 5782

Aaron, Moses, and the High Priesthood
Parashat Shmini
Rabbi Avraham Yitzchak HaLevi Kilav
